High CPU on Cisco router 3925

Our router is suffering the anomaly traffic, and its CPU raised to 40-50% from last night (normally is is < 10%) Can you check out this? Is there any way to mitigate the impact ?

This is the result of show process:

R1-ILL#sh process
CPU utilization for five seconds: 49%/46%; one minute: 30%; five minutes: 18%
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
   1 Cwe  246DD68         3378      65842      5111196/12000  0 Chunk Manager
   2 Csp   8AA7A5         2274    2417984       0 5448/6000   0 Load Meter
   3 M*         0          168       1074     15619592/24000578 SSH Process
   4 Mwe  3F55D1F            0          1       031272/32000  0 EDDRI_MAIN
   5 Mwe  24CCD29            0          1       011812/12000  0 RO Notify Timers
   6 Lst  2488205     11132240    1755668    634011236/12000  0 Check heaps
   7 Cwe  2483E02          476       6876      6911116/12000  0 Pool Manager
   8 Mwe  2483CCD            0          1       011564/12000  0 DiscardQ Backgro
   9 Mst  12EF583            0          2       011312/12000  0 Timers
  10 Mwe  1346E54            4       1653       2 5716/6000   0 WATCH_AFS
  11 Mwe   13FBFA            0          1       011572/12000  0 License Client N
  12 Mwe   12DDA0            0          1       011488/12000  0 Image License br
  13 Msi   1469C1      3973070     201434   19723 7460/12000  0 Licensing Auto U
  14 Mwe   247DDA            0          1       023544/24000  0 OIR Handler
  15 Mwe  460BC8A            4        908       411564/12000  0 CRYPTO IKMP IPC
  16 Mwe   44E016            0          1       031440/32000  0 Crash writer
  17 Mwe   44DE5C            0          1       011268/12000  0 Exception contro
  18 Msi   A32BD5      3233064   12085727     26711172/12000  0 Environmental mo
  19 Mwe   A6BAB1          660    2417191       011560/12000  0 IPC Event Notifi
  20 Mwe   A7E66C          570     201434       211744/12000  0 IPC Dynamic Cach
  21 Mwe   A84597            0          1       011588/12000  0 IPC Session Serv
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
  22 Mwe   A7DF92            0          1       011580/12000  0 IPC Zone Manager
  23 Mwe   A7E5B3          180   11805941       011572/12000  0 IPC Periodic Tim
  24 Mwe   A7EAF6          150   11805941       011536/12000  0 IPC Deferred Por
  25 Mwe   A7E539            0          1       011588/12000  0 IPC Process leve
  26 Mwe   A7E246            0          1       011340/12000  0 IPC Seat Manager
  27 Mwe   A7E135            0          1       011552/12000  0 IPC Seat RX Cont
  28 Mwe   A7E05D            0          1       011548/12000  0 IPC Seat TX Cont
  29 Mwe   A7DD85           32    1208996       011708/12000  0 IPC Keep Alive M
  30 Hsi   A78FC5          142    2417962       011708/12000  0 IPC Loadometer
  31 Mwe   FC6101       188260    4789526      3910420/12000  0 ARP Input
  32 Mwe   FC24E8         1628   12607145       010448/12000  0 ARP Background
  33 Mwe   FF83C7            0          2       011300/12000  0 ATM Idle Timer
  34 Mwe   FE724C            0          1       011536/12000  0 ATM ASYNC PROC
  35 Lwe  11DDFC1            0          1       011540/12000  0 CEF MIB API
  36 Lwe  12C8A89            0          1       011824/12000  0 AAA_SERVER_DEADT
  37 Mwe  1320C8B            0          1       023480/24000  0 Policy Manager
  38 Mwe  141F803            0          2       011260/12000  0 DDR Timers
  39 Lwe  14C412D            0          3       011344/12000  0 Entity MIB API
  40 Mwe  16B69D4          332      34425       914608/16000  0 EEM ED Syslog
  41 Mst  1EAF753         9560         42  22761910192/12000  0 PrstVbl
  42 Mwe  2247B8D            0          2       011288/12000  0 Serial Backgroun
  43 Mwe  24D2F64            0          1       0 5540/6000   0 RMI RM Notify Wa
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
  44 Mwe   29FE7F            0          2       011344/12000  0 SMART
  45 Msp  137AC85          386   12089894       011352/12000  0 GraphIt
  46 Mwe  1447C69            0          2       023300/24000  0 Dialer event
  47 Mwe  225153F            0          1       011580/12000  0 SERIAL A'detect
  48 Mwe  2688C1F            0          2       023344/24000  0 XML Proxy Client
  49 Cwe  24A0542            0          1       011584/12000  0 Critical Bkgnd
  50 Mwe   478E01        12480    1234958      1022816/24000  0 Net Background
  51 Mwe   478CD2            0          9       023292/24000  0 IDB Work
  52 Lwe  1396769           22      66014       022312/24000  0 Logger
  53 Mwe  130F295         1000   12085729       010668/12000  0 TTY Background
  54 Mwe  22A6408            0          3       011144/12000  0 IF-MGR control p
  55 Mwe  22B05D1            2         20     10011580/12000  0 IF-MGR event pro
  56 Mwe   2F5157            0          1       0 5580/6000   0 Inode Table Dest
  57 Mwe   ED3D60            0          2       011528/12000  0 cpf_msg_holdq_pr
  58 Mwe   ED3F3F            0          1       011544/12000  0 cpf_msg_rcvq_pro
  59 Mwe   F54A62            0          1       023572/24000  0 Crypto PKI-HA
  60 Mwe  4352A3F            0          1       011564/12000  0 IKE HA Mgr
  61 Mwe  4354AA3            0          1       011564/12000  0 IPSEC HA Mgr
  62 Mwe   79EF32            6     106049       011300/12000  0 TDM Management
  63 Mwe   EC71D1            0          2       010600/12000  0 rf task
  64 Hwe   EC711F            0          1       011828/12000  0 RF High Priority
  65 Hwe   485B05         4422    1055232       411460/12000  0 Net Input
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
  66 Msp   47C9AE          380    2418164       011344/12000  0 Compute load avg
  67 Msp   485D5A        10166     206419      4911136/12000  0 Per-minute Jobs
  68 Msp   485DC2     48633312   12090716    402214696/16000  0 Per-Second Jobs
  69 Mwe   3768C9            0          1       011808/12000  0 AggMgr Process
  70 Mwe   F49E2D            0          1       011584/12000  0 Token Daemon
  71 Mst  1C6347E           16     945290       011168/12000  0 Transport Port A
  72 Mwe  22BAC2C         9816    2417191       411552/12000  0 HC Counter Timer
  73 Mwe   187A21         7740     805724       911224/12000  0 SM Monitor
  74 Hwe   1994F4            0          2       011304/12000  0 Bryce I2C CMD Qu
  75 Mwe   36489F            0          1       0 5584/6000   0 dev_device_inser
  76 Mwe   3646CD            0          1       0 5584/6000   0 dev_device_remov
  77 Mwe   3A1FDD            0          1       023584/24000  0 sal_dpc_process
  78 Mwe   3A63B0            0          1       011564/12000  0 ARL Table Manage
  79 Hwe   55D414            0          2       011344/12000  0 ESWPPM
  80 Mwe   5678E0            0          2       011292/12000  0 Eswilp Storm Con
  81 Hwe   57F5E1            0          2       011344/12000  0 ESWILPPM
  82 Mwe   5A4DB4            0          2       0 5144/6000   0 Eswilp Storm Con
  83 Hwe   649E33            0          2       011348/12000  0 DXMRVL
  84 Mwe   25E533          588   12085730       011340/12000  0 UHCI Periodic Ta
  85 Hwe   A08FA2            6          3    200010776/12000  0 USB Startup
  86 Mwe   EDD382            0          1       011816/12000  0 RF_INTERDEV_DELA
  87 Mwe   EDED3C            0          1       031556/32000  0 RF_INTERDEV_SCTP
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
  88 Msi   A86AEB          272   12085740       011344/12000  0 Ether-Switch RBC
  90 Hwe   80597C            0          1       011556/12000  0 IGMP Snooping Pr
  91 Hwe   8054EE            0          1       011560/12000  0 IGMP Snooping Re
  92 Msi   AA0C68          486     402866       111292/12000  0 Call Management
  93 Mwe   ED9A3F            0          1       031564/32000  0 CF_INTERDEV_SCTP
  94 Msp   7A1D42        34398   48358765       011228/12000  0 Netclock Backgro
  95 Hwe   5C5B23        15870   12091769       111320/12000  0 BPSM stat Proces
  96 Lsi   5753AC         1130   20140772       011004/12000  0 ILPM
  97 Hwe   302C8F            0          2       023344/24000  0 Ethernet CFM
  98 Hwe   302BE0          694   64619120       023340/24000  0 Ethernet Timer C
  99 Hwe   302B3C        13102 1524021985       023340/24000  0 Ethernet Msec Ti
 100 Mwe   4E99E4            0          2       011340/12000  0 Dot1x Mgr Proces
 101 Mwe   4FADAC            0          1       011872/12000  0 MAB Framework
 102 Mwe   513244            0          1       011848/12000  0 EAP Framework
 103 Mwe   549409            0          2       011240/12000  0 DTP Protocol
 104 Msi   7AB686          386   12085732       011124/12000  0 PI MATM Aging Pr
 105 Msi   862482          558    1208595       011356/12000  0 EtherChnl
 106 Lwe   ABA3BC            0          2       011308/12000  0 call_home_les_oi
 107 Mwe   D95F59            0          1       011760/12000  0 IPv6 ping proces
 108 Mwe   F9E942        17612    3482047       511176/12000  0 AAA Server
 109 Mwe   F9AC52            0          1       011856/12000  0 AAA ACCT Proc
 110 Mwe   F9ABCA            0          1       011276/12000  0 ACCT Periodic Pr
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 111 Mwe   FB02D4            0          1       011556/12000  0 AAA System Acct
 112 Mwe  11D3A32        41064    2159212      1910904/12000  0 CDP Protocol
 113 Mwe  12A0F6A            0          2       011336/12000  0 AAA Dictionary R
 114 Mwe  14DE194            0          2       023348/24000  0 Ethernet LMI
 115 Mwe  14F09BD            0          2       015348/16000  0 Ethernet OAM Pro
 116 Lwe  159D289            0          2       023336/24000  0 CEF switching ba
 117 Lwe  159D289            0          1       0 5336/6000   0 ADJ NSF process
 118 Mwe  159D289        13120     733477      1722060/24000  0 ADJ resolve proc
 119 Hwe  100C1DF            0          2       023268/24000  0 ATM OAM Input
 120 Hwe  10078E4            0          2       023292/24000  0 ATM OAM TIMER
 121 Mwe  24B3C22            0          2       011324/12000  0 IPAM/ODAP Events
 122 Mwe  18CF67B         4916  377316050       023252/24000  0 IPAM Manager
 123 Mwe  24B3C22            0          2       023328/24000  0 IPAM Events
 124 Mwe  1931B25            2          8     250 8560/12000  0 IP ARP Adjacency
 125 Mwe  19335E8            2          1    200011316/12000  0 IP ARP Retry Age
 126 Mwe  190751D    494648436 4056992487     12120148/24000  0 IP Input
 127 Mwe  1938E45            0          1       011776/12000  0 ICMP event handl
 128 Mwe  19D8A88            0          3       011244/12000  0 PIM register asy
 129 Mwe  1CCA332            2      20104       011328/12000  0 MOP Protocols
 130 Mwe  1E5330C            0          2       011260/12000  0 PPP SIP
 131 Mwe  24B3C22            0          2       011336/12000  0 PPP Bind
 132 Mwe  24B3C22            0          2       023340/24000  0 PPP IP Route
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 134 Mwe  22E0AE4            0          1       023908/24000  0 SSS Manager
 135 Mwe  22EC05C            0          1       023860/24000  0 SSS Policy Manag
 136 Mwe  22CEDC3            0          1       011540/12000  0 SSS Feature Mana
 137 Mwe  22CECB5          894   47225548       011684/12000  0 SSS Feature Time
 138 Mwe  2371911        45920    6032180       723348/24000  0 Spanning Tree
 139 Mwe  25B5FA5            0          2       023288/24000  0 SSM connection m
 140 Lwe  263A76C            0          1       011216/12000  0 X.25 Encaps Mana
 141 Mwe  435925D            2      40300       011588/12000  0 Authentication P
 142 Mwe  4367125            0          1       011800/12000  0 Auth-proxy AAA B
 143 Hwe  43759D3            0          2       015320/16000  0 EAPoUDP Process
 144 Mwe  437E22A            0          2       015276/16000  0 IP Host Track Pr
 145 Mwe  45A3336            0          2       023344/24000  0 KRB5 AAA
 146 Lwe  159D289         1336     241743       522276/24000  0 CEF background p
 147 Hwe  159D289            0          1       023336/24000  0 fib_fib_bfd_sb e
 148 Hwe  1C1B199            0          1       011824/12000  0 Socket Timers
 149 Mwe   50B0A3            0          2       011276/12000  0 Dot1x Supplicant
 150 Mwe   50F72B            0          2       011268/12000  0 Dot1x Supplicant
 151 Mwe   50AE77            0          2       011300/12000  0 Dot1x Supplicant
 152 Mwe   690080            4          2    2000 9856/12000  0 L2MM
 153 Mwe   697D9A            0          1       011512/12000  0 MRD
 154 Mwe   686810            0          1       011524/12000  0 IGMPSN
 155 Mwe  24B3C22            0          2       0 5340/6000   0 L2X Switching Ev
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 156 Mwe   A8557A            0         17       011148/12000  0 IPC UDP Input
 157 Lwe  1609442         5848   15744342       021800/24000  0 CEF: IPv4 proces
 158 Lwe  159D289            0          5       011336/12000  0 ADJ background
 159 Mwe  1B90D42         1406     201451       614176/16000  0 IP Background
 160 Mwe  1BEDAE0            0         33       014408/16000  0 IP Connected Rou
 161 Mwe  1BDFE70            0         36       020712/24000  0 IP RIB Update
 162 Mwe  1958F4C            0          1       011732/12000  0 IP Traceroute
 163 Mwe  11A07CC         1638     201434       811368/12000  0 Call Home Timer
 164 Lwe  159D289            0          6       023140/24000  0 Collection proce
 165 Mwe  21F28F4            0          5       010884/12000  0 SCTP Main Proces
 166 Mwe  1C4AF94       396998    7469180      5321092/24000  0 TCP Timer
 167 Lwe  1C507C8       140980    2727256      5121012/24000  0 TCP Protocols
 168 Mwe  1869502            0      40301       015248/16000  0 HTTP CORE
 169 Mwe  228D78B            0          2       011748/12000  0 SNMP Timers
 170 Mwe  1132785            0          1       011568/12000  0 IUA Main Process
 171 Mwe  21E5DB1          750   12085741       011356/12000  0 RUDPV1 Main Proc
 172 Mwe  113B19A            0          1       011776/12000  0 bsm_timers
 173 Msi  113800B          334   12085745       011712/12000  0 bsm_xmt_proc
 174 Hwe  24B3C22            0          2       011336/12000  0 PPP Compress Inp
 175 Hwe  24B3C22            0          2       011336/12000  0 PPP Compress Res
 176 Mwe  125F06F            0          1       059256/60000  0 COPS
 177 Mwe  144350D            0          2       011296/12000  0 Dialer Forwarder
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 178 Mwe  172D53B            0          3       011304/12000  0 Flow Exporter Ti
 179 Lwe  159D289            0          3       023336/24000  0 MFIB Master back
 180 Mwe  1AA4DB3            0          2       015296/16000  0 Multicast Offloa
 181 Mwe  1B84BB3            0          1       011580/12000  0 RARP Input
 182 Mwe  1BF98CE            0         30       014540/16000  0 static
 183 Mwe  1C6ECC3            0          1       015768/16000  0 IP IRDP
 184 Mwe  1C7E0E8            0          1       011908/12000  0 LAPB Process
 185 Hwe  1E05B10            0          1       011500/12000  0 PAD InCall
 186 Mwe  2646B49            0          2       023308/24000  0 X.25 Background
 187 Hwe  1FA9A60            0          1       011580/12000  0 MQC Flow Event B
 188 Mwe  2050EFC            0          2       011804/12000  0 HQF Shaper Backg
 189 Mwe  2530790            0          1       023732/24000  0 VPDN call manage
 190 Mwe  2A64846            0          2       011312/12000  0 PPP NBF
 191 Mwe  43804C8            0          2       011072/12000  0 SDEE Management
 192 Mwe  43A33ED          302   23610386       011324/12000  0 Inspect process
 194 Mwe  4483C46           70     779537       011344/12000  0 FW DP Inspect pr
 195 Mwe  44CF53E          182   23610386       011336/12000  0 CCE DP URLF cach
 196 Mwe  45BBD77            0          2       011320/12000  0 URL filter proc
 197 Mwe  47A4F48            0          1       023512/24000  0 IPS Process
 198 Mwe  4812CC0            0          2       023284/24000  0 IPS Auto Update
 199 Hwe  48F548A            0          1       011828/12000  0 Select Timers
 200 Mwe  48B023F           26          2   1300011040/12000  0 HTTP Process
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 201 Mwe  48E5542            0          2       011180/12000  0 CIFS API Process
 202 Mwe  48E4F9A            0          2       011300/12000  0 CIFS Proxy Proce
 203 Mwe  4946143            0          3       010856/12000  0 Crypto HW Proc
 204 Mwe  4979F2D            0          1       011824/12000  0 IPv6 Inspect Tim
 205 Mwe   CD5F80           28     483599       011096/12000  0 CRM_CALL_UPDATE_
 207 Mwe  118203A            0          2       011348/12000  0 AAA Cached Serve
 208 Mwe  14591CC            0          2       011344/12000  0 ENABLE AAA
 209 Mwe  14F4F88            0          1       011564/12000  0 EM Background Pr
 210 Mwe  188F916            0          1       011904/12000  0 IDMGR CORE
 211 Mwe  1C70F8A            0          1       011820/12000  0 Key chain liveke
 212 Mwe  1C9315C            0          2       011348/12000  0 LINE AAA
 213 Mwe  1CA24C6        26954    3716595       710936/12000  0 LOCAL AAA
 214 Mwe  241F810            2          2    100010936/12000  0 TPLUS
 215 Mwe  288A572            0          3       011220/12000  0 LDAP process
 216 Mwe  2FD4A27            0          3       012952/14000  0 Crypto WUI
 217 Mwe  44F00B7            0          1       030244/32000  0 FW_TEST_TRP
 218 Mwe  46B8CE3        12690    1084176      1111012/12000  0 Crypto Support
 219 Mwe  483548E            0          1       011868/12000  0 EPM MAIN PROCESS
 220 Mwe  496F07F            0          1       011576/12000  0 IPSECv6 PS Proc
 221 Lwe  27F92B2            0        170       011324/12000  0 crypto engine pr
 222 Mwe  26F8150            0          4       022444/24000  0 Crypto CA
 223 Mwe  26F747F            0          1       023576/24000  0 Crypto PKI-CRL
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 224 Mwe  281BA8B            0          1       023576/24000  0 encrypt proc
 225 Lwe  281C283        10192     814792      1210136/12000  0 crypto sw pk pro
 226 Mwe  432A830         9146   12086091       020244/24000  0 Crypto IKEv2
 227 Mwe  432BAAE            0          1       011540/12000  0 IKEv2 AAA handle
 228 Mwe  466D251            0          1       011532/12000  0 Crypto INT
 229 Mwe  4656C74           28        865      3222572/24000  0 Crypto IKE Dispa
 230 Mwe  46402FC          304       2012     15120268/24000  0 Crypto IKMP
 231 Mwe  46CEA6C            0          1       011868/12000  0 IPSEC manual key
 232 Mwe  467E501         1336     604621       221516/24000  0 IPSEC key engine
 233 Mwe  46ABDAA            0          2       011792/12000  0 CRYPTO QoS proce
 234 Mwe  45DDE13            4        383      1029924/32000  0 Crypto ACL
 235 Mwe  45DBE1D            0          1       011576/12000  0 Crypto PAS Proc
 236 Mwe  46E982E            0          1       011776/12000  0 GDOI GM Process
 237 Mwe  471A6F4            0          1       011792/12000  0 UNICAST REKEY
 238 Mwe  471A663            0          1       011580/12000  0 UNICAST REKEY AC
 239 Msp  27EC052          274   12089911       015712/16000  0 Crypto Device Up
 240 Mwe  494D374            0          2       011452/12000  0 Multi-ISA Event
 241 Mwe  494D0F6            0          1       011580/12000  0 Multi-ISA Cleanu
 242 Lwe   16369E            0          1       015584/16000  0 Licensing MIB pr
 243 Mwe   4DA023            0          2       011228/12000  0 Control-plane ho
 244 Mwe   839B33            0          1       011564/12000  0 PM Callback
 246 Mwe  127E6A6         4882     790467       611180/12000  0 AAA SEND STOP EV
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 247 Mwe  1287428            0          1       023836/24000  0 Test AAA Client
 248 Mwe  169632D            0          2       014948/16000  0 EEM ED Track
 249 Mwe  169632D            0          3       014944/16000  0 EEM ED Resource
 250 Mwe  16C08EB            0          2       014984/16000  0 EEM ED Routing
 251 Msi  211206E          634    1208595       011352/12000  0 RMON Recycle Pro
 252 Mwe  211CB43            0          2       011340/12000  0 RMON Deferred Se
 253 Mwe  2384F59            0          1       011588/12000  0 Syslog Traps
 254 Mwe  468CE53           78     377810       011404/12000  0 Crypto cTCP proc
 256 Mwe   8699AE            2          2    1000 8768/12000  0 VLAN Manager
 257 Mwe   16D60C            0          1       031076/32000  0 LICENSE AGENT
 258 Mwe  164DF47            4        566       710680/12000  0 EEM Server
 259 Mwe  11A028E            0          2       010724/12000  0 Call Home proces
 260 Mwe  167D108            0          2       011152/12000  0 EEM Policy Direc
 261 Mwe  169632D            0          2       014940/16000  0 EEM ED CLI
 262 Mwe  169632D            0          3       014944/16000  0 EEM ED Counter
 263 Mwe  169632D            0          3       014948/16000  0 EEM ED Interface
 264 Mwe  169632D            0          3       014944/16000  0 EEM ED IOSWD
 265 Mwe  169632D            0          3       014948/16000  0 EEM ED None
 266 Mwe  169632D            0          3       014944/16000  0 EEM ED OIR
 267 Mwe  16A7DEF            0          3       014964/16000  0 EEM ED RF
 268 Mwe  169632D            0          3       014960/16000  0 EEM ED SNMP
 269 Mwe  16B38F8            0          2       014992/16000  0 EEM ED SNMP Noti
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 270 Mwe  169632D           48     302447       014492/16000  0 EEM ED Timer
 271 Mwe  169632D            0          3       014944/16000  0 EEM ED Test
 272 Mwe  169632D            0          3       014944/16000  0 EEM ED Config
 273 Mwe  169632D            0          3       014948/16000  0 EEM ED Env
 274 Mwe  169632D            0          3       014948/16000  0 EM ED GOLD
 275 Mwe  18E682E           26      10728       223144/24000  0 Syslog
 276 Mwe  169632D            0          3       014948/16000  0 EEM ED RPC
 277 Mwe  169632D            0          3       014944/16000  0 EEM ED Ipsla
 278 Mwe  2C0ED90            0          1       011788/12000  0 IP SLAs Ethernet
 279 Mwe  2D131C7            0          2       014992/16000  0 EEM ED Nf
 280 Mwe  19A867C            0          2       023244/24000  0 MRIB Process
 281 Hwe   A08FA2            0          1       022976/24000  0 tHUB
 282 Mwe  49459BA            0          2       013788/14000  0 Key Proc
 283 Mwe   2FC4E1            0          1       0 5356/6000   0 Async write proc
 284 Mwe   2FC4E1            0          1       0 5356/6000   0 Async write proc
 285 Mwe   2FC4E1            0          1       0 5360/6000   0 Async write proc
 286 Mwe   2FC4E1            0          1       0 5360/6000   0 Async write proc
 287 Msi   2F5673         4592     201434      22 5684/6000   0 DFS flush period
 289 Mwe  28B8AA5            0       3361       010916/12000  0 SSH Event handle
 290 Mwe  1B041FF      5023288   23778261     21110300/12000  0 IP NAT Ager
 291 Mwe  1B66E87            0          1       011808/12000  0 IP NAT WLAN
 292 Mwe  1F3F128      7617202 1129008332       611652/12000  0 IP VFR proc
 PID QTy       PC Runtime (ms)    Invoked   uSecs    Stacks TTY Process
 293 Lwe  17057B9           36       2010      1711224/12000  0 IP Flow Top Talk
 294 Mwe  18E3766        53580    2992728      1721060/24000  0 IP SNMP
 295 Lwe  2293029        31426    2685860      1122788/24000  0 PDU DISPATCHER
 296 Lwe  2292C47       130586    2685802      4821716/24000  0 SNMP ENGINE
 297 Mwe  18E6100            0          2       023252/24000  0 IP SNMPV6
 298 Lwe  12576D0            0          1       023584/24000  0 SNMP ConfCopyPro
 299 Mwe  228E817            0          2       023308/24000  0 SNMP Traps
 300 Mwe   ED3BFE            0          1       011560/12000  0 cpf_process_tpQ

Open in new window


This is the CPU chart from last night until now:

1.JPG
Please help! Are we under attack?
LVL 5
DP230Network AdministratorAsked:
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JustInCaseCommented:
Generally, until CPU is started to be utilized over 80% there is no need to be worried, but it still should be checked.
Is anything reconfigured or something other (e.g more VPN users) happen on device at the time when CPU utilization started to be increased?

Please issue commands and paste output:
show processes cpu sorted | e 0.00%.*0.00%.*0.00%
show ip interface | e [0-9][0-9]\.[0-9][0-9]
0
DP230Network AdministratorAuthor Commented:
Hi, No the number of VPN server is the same.

Strangely, I saw the IP addresses when issued command "show ip flow top-talker" and "show ip cache flow" but when issued "show ip nat translation | grep IP_address", it did not show anything. I intent to get the ports which those traffic connect to and block them by ACL.

Last night, I configured rate-limit in outbound interface, the CPU reduces to 20-25% but I know it is just mitigate and did not solve problem, we still got strange IPs connect to. Is it okay to issue this command on it:

rate-limit input 25600000 6400000 12800000 conform-action transmit exceed-action drop

Out maximum rate is 64  Mb/s


Please find the result below (I removed rate-limit command before issue these):

R1-ILL#sh process cpu sorted | e 0.00%.*0.00%.*0.00%
CPU utilization for five seconds: 22%/21%; one minute: 20%; five minutes: 21%
 PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process
  13     3999968      202544      19748  0.39%  0.04%  0.00%   0 Licensing Auto U
  68    48927496    12157339       4024  0.27%  0.34%  0.35%   0 Per-Second Jobs
   3         108         593        182  0.03%  0.03%  0.02% 578 SSH Process
 126   494788548  4060655352          0  0.03%  0.10%  0.11%   0 IP Input
   6    11257852     1767157       6370  0.00%  0.11%  0.11%   0 Check heaps
  18     3251600    12152323        267  0.00%  0.02%  0.00%   0 Environmental mo

Open in new window


R1-LL#show ip interface | e [0-9][0-9]\.[0-9][0-9]
GigabitEthernet0/0 is up, line protocol is up
  Address determined by non-volatile memory
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is SECURITY-OUT
  Inbound  access list is SECURITY-IN
  Proxy ARP is enabled
  Local Proxy ARP is disabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP fast switching on the same interface is disabled
  IP Flow switching is disabled
  IP CEF switching is enabled
  IP CEF switching turbo vector
  IP multicast fast switching is enabled
  IP multicast distributed fast switching is disabled
  IP route-cache flags are Fast, CEF
  Router Discovery is disabled
  IP output packet accounting is disabled
  IP access violation accounting is disabled
  TCP/IP header compression is disabled
  RTP/IP header compression is disabled
  Policy routing is disabled
  Network address translation is enabled, interface in domain outside
  BGP Policy Mapping is disabled
  Input features: Stateful Inspection, Ingress-NetFlow, Virtual Fragment Reassembly, Access List, IPSec input classification, Virtual Fragment Reassembly After IPSec Decryption, NAT Outside, MCI Check
  Output features: CCE Output Classification, Post-routing NAT Outside, Stateful Inspection, IPSec output classification, IPsec or interface ACL checked on pre-encrypted cleartext packets, Post-Ingress-NetFlow, IPSec: to crypto engine, Post-encryption output features
  WCCP Redirect outbound is disabled
  WCCP Redirect inbound is disabled
  WCCP Redirect exclude is disabled
GigabitEthernet0/1 is administratively down, line protocol is down
  Internet protocol processing disabled
GigabitEthernet0/2 is up, line protocol is up
  Address determined by non-volatile memory
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is not set
  Inbound  access list is not set
  Proxy ARP is enabled
  Local Proxy ARP is disabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP fast switching on the same interface is disabled
  IP Flow switching is disabled
  IP CEF switching is enabled
  IP CEF switching turbo vector
  IP multicast fast switching is enabled
  IP multicast distributed fast switching is disabled
  IP route-cache flags are Fast, CEF
  Router Discovery is disabled
  IP output packet accounting is disabled
  IP access violation accounting is disabled
  TCP/IP header compression is disabled
  RTP/IP header compression is disabled
  Policy routing is enabled, using route map test2
  Network address translation is enabled, interface in domain inside
  BGP Policy Mapping is disabled
  Input features: Stateful Inspection, Virtual Fragment Reassembly, Virtual Fragment Reassembly After IPSec Decryption, Policy Routing, MCI Check
  Output features: NAT Inside, Stateful Inspection, Post-Ingress-NetFlow
  WCCP Redirect outbound is disabled
  WCCP Redirect inbound is disabled
  WCCP Redirect exclude is disabled
GigabitEthernet0/3 is up, line protocol is up
  Address determined by setup command
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is SECURITY-OUT
  Inbound  access list is SECURITY-IN
  Proxy ARP is enabled
  Local Proxy ARP is disabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP fast switching on the same interface is disabled
  IP Flow switching is disabled
  IP CEF switching is enabled
  IP CEF switching turbo vector
  IP multicast fast switching is enabled
  IP multicast distributed fast switching is disabled
  IP route-cache flags are Fast, CEF
  Router Discovery is disabled
  IP output packet accounting is disabled
  IP access violation accounting is disabled
  TCP/IP header compression is disabled
  RTP/IP header compression is disabled
  Policy routing is disabled
  Network address translation is enabled, interface in domain outside
  BGP Policy Mapping is disabled
  Input features: Stateful Inspection, Virtual Fragment Reassembly, Access List, Virtual Fragment Reassembly After IPSec Decryption, NAT Outside, MCI Check
  Output features: CCE Output Classification, Post-routing NAT Outside, Stateful Inspection, IPsec or interface ACL checked on pre-encrypted cleartext packets, Post-Ingress-NetFlow
  WCCP Redirect outbound is disabled
  WCCP Redirect inbound is disabled
  WCCP Redirect exclude is disabled
GigabitEthernet1/0 is up, line protocol is up
  Address determined by non-volatile memory
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is not set
  Inbound  access list is not set
  Proxy ARP is enabled
  Local Proxy ARP is disabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP fast switching on the same interface is disabled
  IP Flow switching is disabled
  IP CEF switching is enabled
  IP CEF switching turbo vector
  IP multicast fast switching is enabled
  IP multicast distributed fast switching is disabled
  IP route-cache flags are Fast, CEF
  Router Discovery is disabled
  IP output packet accounting is disabled
  IP access violation accounting is disabled
  TCP/IP header compression is disabled
  RTP/IP header compression is disabled
  Policy routing is disabled
  Network address translation is disabled
  BGP Policy Mapping is disabled
  Input features: MCI Check
  Output features: Post-Ingress-NetFlow
  WCCP Redirect outbound is disabled
  WCCP Redirect inbound is disabled
  WCCP Redirect exclude is disabled
NVI0 is up, line protocol is up
  MTU is 1514 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is not set
  Inbound  access list is not set
  Proxy ARP is enabled
  Local Proxy ARP is disabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is disabled
  IP fast switching on the same interface is disabled
  IP Flow switching is disabled
  IP CEF switching is disabled
  IP Null turbo vector
  IP Null turbo vector
  IP multicast fast switching is enabled
  IP multicast distributed fast switching is disabled
  IP route-cache flags are Fast, CEF
  Router Discovery is disabled
  IP output packet accounting is disabled
  IP access violation accounting is disabled
  TCP/IP header compression is disabled
  RTP/IP header compression is disabled
  Policy routing is disabled
  Network address translation is disabled
  BGP Policy Mapping is disabled
  Input features: MCI Check
  Output features: Post-routing NAT NVI Output, Post-Ingress-NetFlow
  WCCP Redirect outbound is disabled
  WCCP Redirect inbound is disabled
  WCCP Redirect exclude is disabled

Open in new window

0
JustInCaseCommented:
It could be some bug related to  Licensing Auto Update Process - like CSCuj27424 I can't really find something useful regarding "Per-Second Jobs".
Which IOS version is currently running?
sh ver | i IOS

Try to issue
show interface | e [0-9][0-9]\.[0-9][0-9]
and check device logs

Since NVI is in use according to above output instead of show ip nat translation | grep IP_address I guess grep if grep command is supported on 3925 try to use
show ip nat nvi translation

But, since rate limiting helps it could be attack, increased traffic rate or still could be some bug.
0
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DP230Network AdministratorAuthor Commented:
Hi, I mean include, not grep (Linux-in my mind :-)

nothing show up with this

R1-LL#show ip nat nvi translation
Pro Source global      Source local       Destin  local      Destin  global

Open in new window



here is our version:
Cisco IOS Software, C3900e Software (C3900e-UNIVERSALK9-M), Version 15.1(1)T1, RELEASE SOFTWARE (fc2)

and the output:
R1-LL
#show interface | e [0-9][0-9]\.[0-9][0-9]
GigabitEthernet0/0 is up, line protocol is up
  Hardware is iGbE, address is 1cdf.0fdd.0680 (bia 1cdf.0fdd.0680)
  Description: "ket noi 13 Netnam"
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 29/255, rxload 68/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 100Mbps, media type is RJ45
  output flow-control is XON, input flow-control is XON
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/238/4104955 (size/max/drops/flushes); Total output drops: 23                                                                                        97420
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 26780000 bits/sec, 9262 packets/sec
  5 minute output rate 11693000 bits/sec, 8513 packets/sec
     2721983398 packets input, 3162887304 bytes, 866 no buffer
     Received 1355928 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 1206067 multicast, 3 pause input
     2801480864 packets output, 1894980946 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     657693 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     2 lost carrier, 0 no carrier, 25400 pause output
     0 output buffer failures, 0 output buffers swapped out
GigabitEthernet0/1 is administratively down, line protocol is down
  Hardware is iGbE, address is 1cdf.0fdd.0681 (bia 1cdf.0fdd.0681)
  Description: "Connect to R2"
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Auto Duplex, Auto Speed, media type is unknown media type
  output flow-control is unsupported, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     1 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
GigabitEthernet0/2 is up, line protocol is up
  Hardware is iGbE, address is 1cdf.0fdd.0682 (bia 1cdf.0fdd.0682)
  Description: Connect to SW1-3750
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 5/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 1Gbps, media type is RJ45
  output flow-control is unsupported, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/1398653 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 6910000 bits/sec, 2035 packets/sec
  5 minute output rate 20215000 bits/sec, 2501 packets/sec
     1354166308 packets input, 1467838415 bytes, 113 no buffer
     Received 204455 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     39799 input errors, 0 CRC, 0 frame, 39799 overrun, 0 ignored
     0 watchdog, 202901 multicast, 0 pause input
     352354030 packets output, 2155461732 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     1 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
GigabitEthernet0/3 is up, line protocol is up
  Hardware is iGbE, address is 1cdf.0fdd.0683 (bia 1cdf.0fdd.0683)
  Description: LLVTN-VNPT
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 100Mbps, media type is RJ45
  output flow-control is XON, input flow-control is XON
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:01, output 00:00:03, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/2298 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 3000 bits/sec, 4 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     52099082 packets input, 1613442077 bytes, 0 no buffer
     Received 4708431 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     10165446 packets output, 108217256 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     6 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
GigabitEthernet1/0 is up, line protocol is up
  Hardware is PSE2, address is 1cdf.0fdd.0688 (bia 1cdf.0fdd.0688)
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 1Gbps, media type is internal
  output flow-control is XON, input flow-control is XON
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:23, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/404 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     10332755 packets input, 1202288632 bytes, 0 no buffer
     Received 8710220 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     587945 packets output, 107532035 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     405715 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
NVI0 is up, line protocol is up
  Hardware is NVI
  MTU 1514 bytes, BW 56 Kbit/sec, DLY 5000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation UNKNOWN, loopback not set
  Keepalive set (10 sec)
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out

Open in new window


and the logging

*Apr 12 00:08:04.776: SSH2 1:  Invalid modulus length
*Apr 12 00:10:28.576: SSH2 0:  Invalid modulus length
*Apr 12 00:13:53.182: SSH2 1:  Invalid modulus length
*Apr 12 00:14:08.956: SSH2 0:  Invalid modulus length
*Apr 12 00:16:37.228: SSH2 0:  Invalid modulus length
*Apr 12 00:28:09.816: SSH2 0:  Invalid modulus length
*Apr 12 00:30:05.890: %IP-3-LOOPPAK: Looping packet detected and dropped -
src=210.86.225.14, dst=192.168.77.66, hl=20, tl=56, prot=1, sport=0, dport=0
in=GigabitEthernet0/0, nexthop=172.16.2.27, out=GigabitEthernet0/2
options=none -Process= "IP Input", ipl= 0, pid= 126 -Traceback= 0x19214B0z 0x192115Fz 0x192111Dz 0x1920C94z 0x1920588z 0x191EE13z 0x190657Az 0x1906187z 0x19082B4z 0x1907A7Bz 0x190777Dz 0x190758Cz
*Apr 12 00:30:51.700: SSH2 1:  Invalid modulus length
*Apr 12 00:33:19.576: %IP-3-LOOPPAK: Looping packet detected and dropped -
src=210.86.225.14, dst=192.168.77.44, hl=20, tl=56, prot=1, sport=0, dport=0
in=GigabitEthernet0/0, nexthop=172.16.2.27, out=GigabitEthernet0/2
options=none -Process= "IP Input", ipl= 0, pid= 126 -Traceback= 0x19214B0z 0x192115Fz 0x192111Dz 0x1920C94z 0x1920588z 0x191EE13z 0x190657Az 0x1906187z 0x19082B4z 0x1907A7Bz 0x190777Dz 0x190758Cz
*Apr 12 00:39:44.940: SSH2 0:  Invalid modulus length
*Apr 12 00:39:45.506: SSH2 0: no matching cipher found: client aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,arcfour256,arcfour128 server a
*Apr 12 00:46:18.000: SSH2 1:  Invalid modulus length
*Apr 12 00:48:44.958: SSH2 1:  Invalid modulus length

Open in new window


Should I increase or decrease the rate-limit?
0
DP230Network AdministratorAuthor Commented:
and I think my ACL does not work anymore, I even could not delete entries from it, what should I do?

update: I recreated ACL, then applied to outbound interface. The CPU reduced significantly, so I guess the ACL is the reason for this issue.
0

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JustInCaseCommented:
ACL especially long ones can have that effect, but, I guess in that case there was configuration change and after that CPU can increase (I asked were some changes applied) . If ACL was previously configured and router's CPU utilization was low, I would still guess that ACL itself may not be the only reason higher CPU utilization.
1
DP230Network AdministratorAuthor Commented:
problem was solved after recreated the ACL
0
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