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8.6

Unabled to communicate over Outside interface?

Asked by menreeq in Cisco PIX Firewall, Voice Over IP, Network Routers

Tags: asa, interface, outside

This is kind of a tough one to explain, below is the running config of my ASA 5500. I am trying to help out the phone vendor by setting up access rules that will allow a teleworker to connect to the phone system over the net. The phone system is located on the PT2PT vlan with an private IP of 192.168.30.12 . The DMZ/Teleworker interface is the teleworker server and it has a private IP of 192.168.40.2 . The problem we have is related to the phones audio which is only working in one direction. This requires that UDP traffic be allowed between the VLANSwhich I have allowed. The problem appears to be that the telephone server on the PT2PT vlan needs to  be able to reach the DMZ/Teleworker VLAN via its public IP(66.186.39.68). I don't believe this is a problem of the right outside-access-in rules being set up but rather the ASA not allowing public traffic in and out simultaneously . I think that enabling the ability to ping 66.186.39.68 from the host 192.168.30.12 may resolve the problem, if that simplifies the problem for anyone.
: Saved
:
ASA Version 7.2(2)
!
hostname ciscoasa
domain-name default.domain.invalid
enable password zIt08HFc1ASHTQRr encrypted
names
name 66.186.39.70 TerminalServer
name 66.186.39.68 Teleworker
name 66.186.39.71 DRAC
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.168.3.1 255.255.255.0
!
interface Vlan2
 nameif outside
 security-level 0
 ip address 66.186.39.67 255.255.255.240
!
interface Vlan12
 nameif PT2PT
 security-level 100
 ip address 192.168.30.2 255.255.255.0
!
interface Vlan22
 nameif DMZ/Teleworker
 security-level 100
 ip address 192.168.40.1 255.255.255.0
!
interface Ethernet0/0
 switchport access vlan 2
!
interface Ethernet0/1
 switchport access vlan 12
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
 switchport access vlan 22
!
passwd 2KFQnbNIdI.2KYOU encrypted
ftp mode passive
dns server-group DefaultDNS
 domain-name default.domain.invalid
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object-group service SRTP udp
 description 10
 port-object range 19000 23010
object-group service RDP tcp
 port-object range 3389 3391
object-group service Teleworker tcp
 port-object range 2114 2114
 port-object range 2116 2116
 port-object range ssh ssh
 port-object range 3300 3300
 port-object range 35000 35000
 port-object range 37000 37000
 port-object range https https
 port-object range 3398 3398
 port-object range 6800 6802
 port-object range 3999 3999
 port-object range 6880 6880
object-group service RTP udp
 port-object range 1024 65535
access-list inside_access_in extended permit udp any any
access-list inside_access_in extended permit ip any any
access-list inside_access_in extended permit tcp any any
access-list inside_access_in extended permit icmp any any
access-list inside_access_in extended permit gre any any
access-list PT2PT_access_in extended permit tcp any any
access-list PT2PT_access_in extended permit ip any any
access-list PT2PT_access_in extended permit icmp any any
access-list PT2PT_access_in extended permit udp any any
access-list PT2PT_access_in extended permit tcp interface PT2PT eq https any eq https
access-list PT2PT_access_in extended permit icmp host Teleworker 192.168.30.0 255.255.255.0
access-list outside_access_in extended permit tcp any host TerminalServer eq smtp
access-list outside_access_in extended permit tcp any host TerminalServer eq pptp
access-list outside_access_in extended permit tcp any host TerminalServer eq www
access-list outside_access_in extended permit tcp any host TerminalServer eq https
access-list outside_access_in extended permit icmp any host TerminalServer
access-list outside_access_in extended permit tcp any host TerminalServer eq 4125
access-list outside_access_in extended permit tcp any host TerminalServer eq 3389
access-list outside_access_in extended permit tcp any host TerminalServer eq 1433
access-list outside_access_in extended permit udp any host Teleworker object-group SRTP
access-list outside_access_in extended permit tcp any host Teleworker eq 47
access-list outside_access_in extended permit tcp any host Teleworker eq pptp
access-list outside_access_in extended permit tcp any host Teleworker object-group Teleworker
access-list outside_access_in extended permit icmp any host Teleworker
access-list outside_access_in extended permit tcp any host DRAC eq ssh
access-list outside_access_in extended permit tcp any host DRAC eq 5900
access-list outside_access_in extended permit tcp any host DRAC eq 5901
access-list outside_access_in extended permit tcp any host DRAC eq 6668
access-list outside_access_in extended permit tcp any host DRAC eq 3668
access-list outside_access_in extended permit tcp any host DRAC eq 3669
access-list inside_nat0_outbound extended permit ip any 192.168.30.0 255.255.255.0
access-list inside_nat0_outbound extended permit ip any 192.168.20.0 255.255.255.0
access-list inside_nat0_outbound extended permit ip any 192.168.2.0 255.255.255.0
access-list inside_nat0_outbound extended permit ip any 192.168.40.0 255.255.255.0
access-list DMZ/Teleworker_access_in extended permit icmp any any
access-list DMZ/Teleworker_access_in extended permit udp any any
access-list DMZ/Teleworker_access_in extended permit ip any any
access-list DMZ/Teleworker_access_in extended permit tcp any any
access-list DMZ/Teleworker_nat0_outbound extended permit ip any 192.168.3.0 255.255.255.0
access-list DMZ/Teleworker_nat0_outbound extended permit ip any 192.168.2.0 255.255.255.0
access-list DMZ/Teleworker_nat0_outbound extended permit ip any 192.168.30.0 255.255.255.0
access-list DMZ/Teleworker_nat0_outbound extended permit ip any 192.168.20.0 255.255.255.0
access-list PT2PT_nat0_outbound extended permit ip any 192.168.40.0 255.255.255.0
access-list PT2PT_nat0_outbound extended permit ip any 192.168.3.0 255.255.255.0
access-list PT2PT_nat0_outbound extended permit ip any 192.168.2.0 255.255.255.0
access-list PT2PT_nat0_outbound extended permit ip any 192.168.20.0 255.255.255.0
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
mtu PT2PT 1500
mtu DMZ/Teleworker 1500
no failover
monitor-interface inside
monitor-interface outside
monitor-interface PT2PT
monitor-interface DMZ/Teleworker
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-522.bin
no asdm history enable
arp timeout 14400
nat-control
global (outside) 1 66.186.39.67 netmask 255.255.255.240
global (outside) 2 Teleworker netmask 255.255.255.240
global (outside) 3 66.186.39.69 netmask 255.255.255.240
global (outside) 4 TerminalServer netmask 255.0.0.0
global (outside) 5 DRAC netmask 255.0.0.0
nat (inside) 0 access-list inside_nat0_outbound
nat (inside) 4 192.168.3.0 255.255.255.0
nat (PT2PT) 0 access-list PT2PT_nat0_outbound
nat (PT2PT) 1 192.168.30.0 255.255.255.0
nat (DMZ/Teleworker) 0 access-list DMZ/Teleworker_nat0_outbound
nat (DMZ/Teleworker) 2 192.168.40.0 255.255.255.0
static (DMZ/Teleworker,outside) Teleworker 192.168.40.2 netmask 255.255.255.255
static (inside,outside) DRAC 192.168.3.120 netmask 255.255.255.255
static (inside,outside) TerminalServer 192.168.3.5 netmask 255.255.255.255
access-group inside_access_in in interface inside
access-group outside_access_in in interface outside
access-group PT2PT_access_in in interface PT2PT
access-group DMZ/Teleworker_access_in in interface DMZ/Teleworker
route outside 0.0.0.0 0.0.0.0 66.186.39.65 1
route PT2PT 192.168.2.0 255.255.255.0 192.168.30.1 1
route PT2PT 192.168.10.0 255.255.255.252 192.168.30.1 1
route PT2PT 192.168.20.0 255.255.255.0 192.168.30.1 1
!
router rip
!
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
http server enable
http 192.168.20.0 255.255.255.0 PT2PT
http 192.168.30.0 255.255.255.0 PT2PT
http 192.168.2.0 255.255.255.0 PT2PT
http 192.168.3.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!
dhcpd address 192.168.3.2-192.168.3.254 inside
!

!
class-map PPTP
 description PPTP
 match port tcp eq pptp
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
 parameters
  message-length maximum 512
policy-map PPTP
 class PPTP
  inspect pptp
policy-map global_policy
 class inspection_default
  inspect dns preset_dns_map
  inspect ftp
  inspect h323 h225
  inspect h323 ras
  inspect rsh
  inspect rtsp
  inspect esmtp
  inspect sqlnet
  inspect skinny
  inspect sunrpc
  inspect xdmcp
  inspect sip
  inspect netbios
  inspect tftp
!
service-policy global_policy global
service-policy PPTP interface outside
prompt hostname context
Cryptochecksum:9d371e31450cfdf7272f7fb605700a9a
: end
asdm image disk0:/asdm-522.bin
no asdm history enable

 
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[+][-]03/20/08 08:21 AM, ID: 21172429Accepted Solution

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About this solution

Zones: Cisco PIX Firewall, Voice Over IP, Network Routers
Tags: asa, interface, outside
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Solution Provided By: batry_boy
Participating Experts: 3
Solution Grade: B
 
[+][-]11/19/07 05:12 PM, ID: 20316975Author Comment

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[+][-]02/12/08 10:07 PM, ID: 20882023Expert Comment

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