thaboloko
asked on
Problems getting DHCP on Cisco Switch
Hello Expert Guys,
I have a Catalyst 6509 that I would like to use. If I use an static IP Address on a client connected to this switch everything goes fine (internet, Outlook, Remote MRP Applications, etc) but If I want to get a dynamic IP Address from our current DHCP server (155.139.1.37) it doesn't assign any IP. The DHCP server is working fine since have other switches connected and getting IPs from this DHCP Server, but I'm having problems with this switch only. I'm getting internet and DHCP Services from the first Fiber Port. Here is the config file:
!
boot system flash 0x2
boot config bootflash:0x2
logging snmp-authfail
enable secret 5 *******************
enable password *******************
!
ip subnet-zero
!
!
!
mpls ldp logging neighbor-changes
no mls flow ip
no mls flow ipv6
mls cef error action freeze
!
!
!
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
dot1x system-auth-control
diagnostic cns publish cisco.cns.device.diag_resu
diagnostic cns subscribe cisco.cns.device.diag_comm
!
redundancy
mode sso
main-cpu
auto-sync running-config
auto-sync standard
!
vlan internal allocation policy ascending
vlan access-log ratelimit 2000
!
!
interface GigabitEthernet1/1
ip address 155.139.1.3 255.255.255.0
ip helper-address 155.139.1.37
!
interface GigabitEthernet1/2
no ip address
shutdown
!
interface GigabitEthernet1/3
no ip address
shutdown
!
interface GigabitEthernet1/4
no ip address
shutdown
!
interface GigabitEthernet1/5
no ip address
shutdown
!
interface GigabitEthernet1/6
no ip address
shutdown
!
interface GigabitEthernet1/7
no ip address
shutdown
!
interface GigabitEthernet1/8
no ip address
shutdown
!
interface GigabitEthernet2/1
no ip address
!
interface GigabitEthernet2/2
no ip address
!
interface GigabitEthernet2/3
no ip address
!
interface GigabitEthernet2/4
no ip address
!
interface GigabitEthernet2/5
no ip address
!
interface GigabitEthernet2/6
no ip address
!
interface GigabitEthernet2/7
no ip address
!
interface GigabitEthernet2/8
no ip address
!
interface GigabitEthernet2/9
no ip address
!
interface GigabitEthernet2/10
no ip address
!
interface GigabitEthernet2/11
no ip address
!
interface GigabitEthernet2/12
no ip address
!
interface GigabitEthernet2/13
no ip address
!
interface GigabitEthernet2/14
no ip address
!
interface GigabitEthernet2/15
no ip address
!
interface GigabitEthernet2/16
no ip address
!
interface GigabitEthernet2/17
no ip address
!
interface GigabitEthernet2/18
no ip address
!
interface GigabitEthernet2/19
no ip address
!
interface GigabitEthernet2/20
no ip address
!
interface GigabitEthernet2/21
no ip address
!
interface GigabitEthernet2/22
no ip address
!
interface GigabitEthernet2/23
no ip address
!
interface GigabitEthernet2/24
no ip address
!
interface GigabitEthernet2/25
no ip address
!
interface GigabitEthernet2/26
no ip address
!
interface GigabitEthernet2/27
no ip address
!
interface GigabitEthernet2/28
no ip address
!
interface GigabitEthernet2/29
no ip address
!
interface GigabitEthernet2/30
no ip address
!
interface GigabitEthernet2/31
no ip address
!
interface GigabitEthernet2/32
no ip address
!
interface GigabitEthernet2/33
no ip address
!
interface GigabitEthernet2/34
no ip address
!
interface GigabitEthernet2/35
no ip address
!
interface GigabitEthernet2/36
no ip address
!
interface GigabitEthernet2/37
no ip address
!
interface GigabitEthernet2/38
no ip address
!
interface GigabitEthernet2/39
no ip address
!
interface GigabitEthernet2/40
no ip address
!
interface GigabitEthernet2/41
no ip address
!
interface GigabitEthernet2/42
no ip address
!
interface GigabitEthernet2/43
no ip address
!
interface GigabitEthernet2/44
no ip address
!
interface GigabitEthernet2/45
no ip address
!
interface GigabitEthernet2/46
no ip address
!
interface GigabitEthernet2/47
no ip address
!
interface GigabitEthernet2/48
no ip address
!
interface GigabitEthernet3/1
no ip address
!
interface GigabitEthernet3/2
no ip address
!
interface GigabitEthernet3/3
no ip address
!
interface GigabitEthernet3/4
no ip address
!
interface GigabitEthernet3/5
no ip address
!
interface GigabitEthernet3/6
no ip address
!
interface GigabitEthernet3/7
no ip address
!
interface GigabitEthernet3/8
no ip address
!
interface GigabitEthernet3/9
no ip address
!
interface GigabitEthernet3/10
no ip address
!
interface GigabitEthernet3/11
no ip address
!
interface GigabitEthernet3/12
no ip address
!
interface GigabitEthernet3/13
no ip address
!
interface GigabitEthernet3/14
no ip address
!
interface GigabitEthernet3/15
no ip address
!
interface GigabitEthernet3/16
no ip address
!
interface GigabitEthernet3/17
no ip address
!
interface GigabitEthernet3/18
no ip address
!
interface GigabitEthernet3/19
no ip address
!
interface GigabitEthernet3/20
no ip address
!
interface GigabitEthernet3/21
no ip address
!
interface GigabitEthernet3/22
no ip address
!
interface GigabitEthernet3/23
no ip address
!
interface GigabitEthernet3/24
no ip address
!
interface GigabitEthernet3/25
no ip address
!
interface GigabitEthernet3/26
no ip address
!
interface GigabitEthernet3/27
no ip address
!
interface GigabitEthernet3/28
no ip address
!
interface GigabitEthernet3/29
no ip address
!
interface GigabitEthernet3/30
no ip address
!
interface GigabitEthernet3/31
no ip address
!
interface GigabitEthernet3/32
no ip address
!
interface GigabitEthernet3/33
no ip address
!
interface GigabitEthernet3/34
no ip address
!
interface GigabitEthernet3/35
no ip address
!
interface GigabitEthernet3/36
no ip address
!
interface GigabitEthernet3/37
no ip address
!
interface GigabitEthernet3/38
no ip address
!
interface GigabitEthernet3/39
no ip address
!
interface GigabitEthernet3/40
no ip address
!
interface GigabitEthernet3/41
no ip address
!
interface GigabitEthernet3/42
no ip address
!
interface GigabitEthernet3/43
no ip address
!
interface GigabitEthernet3/44
no ip address
!
interface GigabitEthernet3/45
no ip address
!
interface GigabitEthernet3/46
no ip address
!
interface GigabitEthernet3/47
no ip address
!
interface GigabitEthernet3/48
no ip address
!
interface GigabitEthernet4/1
no ip address
!
interface GigabitEthernet4/2
no ip address
!
interface GigabitEthernet4/3
no ip address
!
interface GigabitEthernet4/4
no ip address
!
interface GigabitEthernet4/5
no ip address
!
interface GigabitEthernet4/6
no ip address
!
interface GigabitEthernet4/7
no ip address
!
interface GigabitEthernet4/8
no ip address
!
interface GigabitEthernet4/9
no ip address
!
interface GigabitEthernet4/10
no ip address
!
interface GigabitEthernet4/11
no ip address
!
interface GigabitEthernet4/12
no ip address
!
interface GigabitEthernet4/13
no ip address
!
interface GigabitEthernet4/14
no ip address
!
interface GigabitEthernet4/15
no ip address
!
interface GigabitEthernet4/16
no ip address
!
interface GigabitEthernet4/17
no ip address
!
interface GigabitEthernet4/18
no ip address
!
interface GigabitEthernet4/19
no ip address
!
interface GigabitEthernet4/20
no ip address
!
interface GigabitEthernet4/21
no ip address
!
interface GigabitEthernet4/22
no ip address
!
interface GigabitEthernet4/23
no ip address
!
interface GigabitEthernet4/24
no ip address
!
interface GigabitEthernet4/25
no ip address
!
interface GigabitEthernet4/26
no ip address
!
interface GigabitEthernet4/27
no ip address
!
interface GigabitEthernet4/28
no ip address
!
interface GigabitEthernet4/29
no ip address
!
interface GigabitEthernet4/30
no ip address
!
interface GigabitEthernet4/31
no ip address
!
interface GigabitEthernet4/32
no ip address
!
interface GigabitEthernet4/33
no ip address
!
interface GigabitEthernet4/34
no ip address
!
interface GigabitEthernet4/35
no ip address
!
interface GigabitEthernet4/36
no ip address
!
interface GigabitEthernet4/37
no ip address
!
interface GigabitEthernet4/38
no ip address
!
interface GigabitEthernet4/39
no ip address
!
interface GigabitEthernet4/40
no ip address
!
interface GigabitEthernet4/41
no ip address
!
interface GigabitEthernet4/42
no ip address
!
interface GigabitEthernet4/43
no ip address
!
interface GigabitEthernet4/44
no ip address
!
interface GigabitEthernet4/45
no ip address
!
interface GigabitEthernet4/46
no ip address
!
interface GigabitEthernet4/47
no ip address
!
interface GigabitEthernet4/48
no ip address
!
interface GigabitEthernet5/1
no ip address
!
interface GigabitEthernet5/2
no ip address
!
interface GigabitEthernet6/1
no ip address
!
interface GigabitEthernet6/2
no ip address
!
interface Vlan1
no ip address
!
interface Vlan2
no ip address
!
ip default-gateway 155.139.1.1
ip classless
ip route 0.0.0.0 0.0.0.0 155.139.1.1
no ip http server
!
!
!
snmp-server community atlas1 RW
!
!
dial-peer cor custom
!
!
!
!
line con 0
line vty 0 4
password ************
login
!
end
Any help to fix the DHCP issue is really appreciated, Thank Guys! Gustavo.
I have a Catalyst 6509 that I would like to use. If I use an static IP Address on a client connected to this switch everything goes fine (internet, Outlook, Remote MRP Applications, etc) but If I want to get a dynamic IP Address from our current DHCP server (155.139.1.37) it doesn't assign any IP. The DHCP server is working fine since have other switches connected and getting IPs from this DHCP Server, but I'm having problems with this switch only. I'm getting internet and DHCP Services from the first Fiber Port. Here is the config file:
!
boot system flash 0x2
boot config bootflash:0x2
logging snmp-authfail
enable secret 5 *******************
enable password *******************
!
ip subnet-zero
!
!
!
mpls ldp logging neighbor-changes
no mls flow ip
no mls flow ipv6
mls cef error action freeze
!
!
!
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
dot1x system-auth-control
diagnostic cns publish cisco.cns.device.diag_resu
diagnostic cns subscribe cisco.cns.device.diag_comm
!
redundancy
mode sso
main-cpu
auto-sync running-config
auto-sync standard
!
vlan internal allocation policy ascending
vlan access-log ratelimit 2000
!
!
interface GigabitEthernet1/1
ip address 155.139.1.3 255.255.255.0
ip helper-address 155.139.1.37
!
interface GigabitEthernet1/2
no ip address
shutdown
!
interface GigabitEthernet1/3
no ip address
shutdown
!
interface GigabitEthernet1/4
no ip address
shutdown
!
interface GigabitEthernet1/5
no ip address
shutdown
!
interface GigabitEthernet1/6
no ip address
shutdown
!
interface GigabitEthernet1/7
no ip address
shutdown
!
interface GigabitEthernet1/8
no ip address
shutdown
!
interface GigabitEthernet2/1
no ip address
!
interface GigabitEthernet2/2
no ip address
!
interface GigabitEthernet2/3
no ip address
!
interface GigabitEthernet2/4
no ip address
!
interface GigabitEthernet2/5
no ip address
!
interface GigabitEthernet2/6
no ip address
!
interface GigabitEthernet2/7
no ip address
!
interface GigabitEthernet2/8
no ip address
!
interface GigabitEthernet2/9
no ip address
!
interface GigabitEthernet2/10
no ip address
!
interface GigabitEthernet2/11
no ip address
!
interface GigabitEthernet2/12
no ip address
!
interface GigabitEthernet2/13
no ip address
!
interface GigabitEthernet2/14
no ip address
!
interface GigabitEthernet2/15
no ip address
!
interface GigabitEthernet2/16
no ip address
!
interface GigabitEthernet2/17
no ip address
!
interface GigabitEthernet2/18
no ip address
!
interface GigabitEthernet2/19
no ip address
!
interface GigabitEthernet2/20
no ip address
!
interface GigabitEthernet2/21
no ip address
!
interface GigabitEthernet2/22
no ip address
!
interface GigabitEthernet2/23
no ip address
!
interface GigabitEthernet2/24
no ip address
!
interface GigabitEthernet2/25
no ip address
!
interface GigabitEthernet2/26
no ip address
!
interface GigabitEthernet2/27
no ip address
!
interface GigabitEthernet2/28
no ip address
!
interface GigabitEthernet2/29
no ip address
!
interface GigabitEthernet2/30
no ip address
!
interface GigabitEthernet2/31
no ip address
!
interface GigabitEthernet2/32
no ip address
!
interface GigabitEthernet2/33
no ip address
!
interface GigabitEthernet2/34
no ip address
!
interface GigabitEthernet2/35
no ip address
!
interface GigabitEthernet2/36
no ip address
!
interface GigabitEthernet2/37
no ip address
!
interface GigabitEthernet2/38
no ip address
!
interface GigabitEthernet2/39
no ip address
!
interface GigabitEthernet2/40
no ip address
!
interface GigabitEthernet2/41
no ip address
!
interface GigabitEthernet2/42
no ip address
!
interface GigabitEthernet2/43
no ip address
!
interface GigabitEthernet2/44
no ip address
!
interface GigabitEthernet2/45
no ip address
!
interface GigabitEthernet2/46
no ip address
!
interface GigabitEthernet2/47
no ip address
!
interface GigabitEthernet2/48
no ip address
!
interface GigabitEthernet3/1
no ip address
!
interface GigabitEthernet3/2
no ip address
!
interface GigabitEthernet3/3
no ip address
!
interface GigabitEthernet3/4
no ip address
!
interface GigabitEthernet3/5
no ip address
!
interface GigabitEthernet3/6
no ip address
!
interface GigabitEthernet3/7
no ip address
!
interface GigabitEthernet3/8
no ip address
!
interface GigabitEthernet3/9
no ip address
!
interface GigabitEthernet3/10
no ip address
!
interface GigabitEthernet3/11
no ip address
!
interface GigabitEthernet3/12
no ip address
!
interface GigabitEthernet3/13
no ip address
!
interface GigabitEthernet3/14
no ip address
!
interface GigabitEthernet3/15
no ip address
!
interface GigabitEthernet3/16
no ip address
!
interface GigabitEthernet3/17
no ip address
!
interface GigabitEthernet3/18
no ip address
!
interface GigabitEthernet3/19
no ip address
!
interface GigabitEthernet3/20
no ip address
!
interface GigabitEthernet3/21
no ip address
!
interface GigabitEthernet3/22
no ip address
!
interface GigabitEthernet3/23
no ip address
!
interface GigabitEthernet3/24
no ip address
!
interface GigabitEthernet3/25
no ip address
!
interface GigabitEthernet3/26
no ip address
!
interface GigabitEthernet3/27
no ip address
!
interface GigabitEthernet3/28
no ip address
!
interface GigabitEthernet3/29
no ip address
!
interface GigabitEthernet3/30
no ip address
!
interface GigabitEthernet3/31
no ip address
!
interface GigabitEthernet3/32
no ip address
!
interface GigabitEthernet3/33
no ip address
!
interface GigabitEthernet3/34
no ip address
!
interface GigabitEthernet3/35
no ip address
!
interface GigabitEthernet3/36
no ip address
!
interface GigabitEthernet3/37
no ip address
!
interface GigabitEthernet3/38
no ip address
!
interface GigabitEthernet3/39
no ip address
!
interface GigabitEthernet3/40
no ip address
!
interface GigabitEthernet3/41
no ip address
!
interface GigabitEthernet3/42
no ip address
!
interface GigabitEthernet3/43
no ip address
!
interface GigabitEthernet3/44
no ip address
!
interface GigabitEthernet3/45
no ip address
!
interface GigabitEthernet3/46
no ip address
!
interface GigabitEthernet3/47
no ip address
!
interface GigabitEthernet3/48
no ip address
!
interface GigabitEthernet4/1
no ip address
!
interface GigabitEthernet4/2
no ip address
!
interface GigabitEthernet4/3
no ip address
!
interface GigabitEthernet4/4
no ip address
!
interface GigabitEthernet4/5
no ip address
!
interface GigabitEthernet4/6
no ip address
!
interface GigabitEthernet4/7
no ip address
!
interface GigabitEthernet4/8
no ip address
!
interface GigabitEthernet4/9
no ip address
!
interface GigabitEthernet4/10
no ip address
!
interface GigabitEthernet4/11
no ip address
!
interface GigabitEthernet4/12
no ip address
!
interface GigabitEthernet4/13
no ip address
!
interface GigabitEthernet4/14
no ip address
!
interface GigabitEthernet4/15
no ip address
!
interface GigabitEthernet4/16
no ip address
!
interface GigabitEthernet4/17
no ip address
!
interface GigabitEthernet4/18
no ip address
!
interface GigabitEthernet4/19
no ip address
!
interface GigabitEthernet4/20
no ip address
!
interface GigabitEthernet4/21
no ip address
!
interface GigabitEthernet4/22
no ip address
!
interface GigabitEthernet4/23
no ip address
!
interface GigabitEthernet4/24
no ip address
!
interface GigabitEthernet4/25
no ip address
!
interface GigabitEthernet4/26
no ip address
!
interface GigabitEthernet4/27
no ip address
!
interface GigabitEthernet4/28
no ip address
!
interface GigabitEthernet4/29
no ip address
!
interface GigabitEthernet4/30
no ip address
!
interface GigabitEthernet4/31
no ip address
!
interface GigabitEthernet4/32
no ip address
!
interface GigabitEthernet4/33
no ip address
!
interface GigabitEthernet4/34
no ip address
!
interface GigabitEthernet4/35
no ip address
!
interface GigabitEthernet4/36
no ip address
!
interface GigabitEthernet4/37
no ip address
!
interface GigabitEthernet4/38
no ip address
!
interface GigabitEthernet4/39
no ip address
!
interface GigabitEthernet4/40
no ip address
!
interface GigabitEthernet4/41
no ip address
!
interface GigabitEthernet4/42
no ip address
!
interface GigabitEthernet4/43
no ip address
!
interface GigabitEthernet4/44
no ip address
!
interface GigabitEthernet4/45
no ip address
!
interface GigabitEthernet4/46
no ip address
!
interface GigabitEthernet4/47
no ip address
!
interface GigabitEthernet4/48
no ip address
!
interface GigabitEthernet5/1
no ip address
!
interface GigabitEthernet5/2
no ip address
!
interface GigabitEthernet6/1
no ip address
!
interface GigabitEthernet6/2
no ip address
!
interface Vlan1
no ip address
!
interface Vlan2
no ip address
!
ip default-gateway 155.139.1.1
ip classless
ip route 0.0.0.0 0.0.0.0 155.139.1.1
no ip http server
!
!
!
snmp-server community atlas1 RW
!
!
dial-peer cor custom
!
!
!
!
line con 0
line vty 0 4
password ************
login
!
end
Any help to fix the DHCP issue is really appreciated, Thank Guys! Gustavo.
Andres Perales
perhaps you are missing the ip helper statement ...
ASKER CERTIFIED SOLUTION
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Jason,
You can't have two routed interfaces connected to the same network. You'll get an "ip address overlap" message.
You can't have two routed interfaces connected to the same network. You'll get an "ip address overlap" message.
Donjohnston, you just beat me to it!
However, he shouldn't need the helper-address at all, since it appears that the DHCP server 155.139.1.37 is on the same subnet.
However, he shouldn't need the helper-address at all, since it appears that the DHCP server 155.139.1.37 is on the same subnet.
Donjohnston,
I didn't. The first command was removing it from his gi port, the later one adds it to the vlan1.
Although I must warn thaboloko, DO THOSE COMMANDS FROM SERIAL CONNECTION! Otherwise, the first command will disconnect you from your switch and the others won't work.
I didn't. The first command was removing it from his gi port, the later one adds it to the vlan1.
Although I must warn thaboloko, DO THOSE COMMANDS FROM SERIAL CONNECTION! Otherwise, the first command will disconnect you from your switch and the others won't work.
Sorry, I missed the "no" in front of the first couple commands. Mea culpa.
ASKER
I do not have currently access to the switch but I sent your comments to another guy, He made the changes and he is sending me the current conf, supposely based on your comments (still not working):
Current configuration : 8561 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
service counters max age 10
!
hostname **********
!
boot system flash 0x2
boot config bootflash:0x2
logging snmp-authfail
enable secret 5 ************
enable password ****************
!
ip subnet-zero
!
!
!
mpls ldp logging neighbor-changes
no mls flow ip
no mls flow ipv6
mls cef error action freeze
!
!
!
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
dot1x system-auth-control
diagnostic cns publish cisco.cns.device.diag_resu
diagnostic cns subscribe cisco.cns.device.diag_comm
!
redundancy
mode sso
main-cpu
auto-sync running-config
auto-sync standard
!
vlan internal allocation policy ascending
vlan access-log ratelimit 2000
!
!
interface GigabitEthernet1/1
no ip address
spanning-tree portfast
!
interface Vlan1
ip address 155.139.1.3 255.255.255.0
ip helper-address 155.139.1.37
!
interface Vlan2
no ip address
!
router rip
network 155.139.0.0
!
ip default-gateway 155.139.1.1
ip classless
ip route 0.0.0.0 0.0.0.0 155.139.1.1
no ip http server
!
!
!
snmp-server community atlas1 RW
!
!
dial-peer cor custom
!
!
!
!
line con 0
line vty 0 4
password ********
login
!
end
Current configuration : 8561 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
service counters max age 10
!
hostname **********
!
boot system flash 0x2
boot config bootflash:0x2
logging snmp-authfail
enable secret 5 ************
enable password ****************
!
ip subnet-zero
!
!
!
mpls ldp logging neighbor-changes
no mls flow ip
no mls flow ipv6
mls cef error action freeze
!
!
!
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
dot1x system-auth-control
diagnostic cns publish cisco.cns.device.diag_resu
diagnostic cns subscribe cisco.cns.device.diag_comm
!
redundancy
mode sso
main-cpu
auto-sync running-config
auto-sync standard
!
vlan internal allocation policy ascending
vlan access-log ratelimit 2000
!
!
interface GigabitEthernet1/1
no ip address
spanning-tree portfast
!
interface Vlan1
ip address 155.139.1.3 255.255.255.0
ip helper-address 155.139.1.37
!
interface Vlan2
no ip address
!
router rip
network 155.139.0.0
!
ip default-gateway 155.139.1.1
ip classless
ip route 0.0.0.0 0.0.0.0 155.139.1.1
no ip http server
!
!
!
snmp-server community atlas1 RW
!
!
dial-peer cor custom
!
!
!
!
line con 0
line vty 0 4
password ********
login
!
end
ASKER
Also we have running correctly another switch that the only difference is this interface, could somebody explain what is this and if I need to add this entry to my bad switch so I can fix the DHCP problem.... (and How)
Cat5500> (enable) set interface sc0 172.16.80.40 255.255.255.0
Cat5500> (enable) set interface sc0 172.16.80.40 255.255.255.0
We're going to need a better picture of the topology in order to resolve this. What is the IP address of the DHCP server? Where is it connected? What ports are the PC's connected to?
As for your 5500 question, that command assigns an IP address to the switch for management (telnet, SNMP).
As for your 5500 question, that command assigns an IP address to the switch for management (telnet, SNMP).
ASKER
Thank you Guys, I brought a cisco specialist to our site and fixed the problem, Thanks.