08-04-2003 11:05 AM - edited 03-02-2019 09:20 AM
I've been pulling my hair trying to figure this out. We just got 2 new T1 lines installed connecting our two offices. After configureing the routers (one is a 2600 with two WIC cards the other is a 1700 with two WIC cards) only one interface is coming up. Even after doing no shut on the down interface i am not able to bring the serial interface up. Here is my conf:
1700 Config
Current configuration : 1096 bytes
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname xxxx
!
enable secret xxxxxxx.
!
!
!
!
!
memory-size iomem 25
clock timezone PST -8
clock summer-time PDT recurring
ip subnet-zero
no ip source-route
ip rcmd remote-username admin
ip dhcp excluded-address 192.168.82.1 192.168.82.20
!
ip dhcp pool 0
network 192.168.82.0 255.255.255.0
domain-name gerwick.com
dns-server 207.155.183.72 206.173.119.72
default-router 192.168.82.1
netbios-name-server 192.168.82.2
!
!
!
!
interface Serial0
ip address 172.16.16.10 255.255.255
service-module t1 timeslots 1-24
!
interface Serial1
ip address 172.16.16.2 255.255.255.252
service-module t1 timeslots 1-24
!
interface FastEthernet0
ip address 192.168.82.1 255.255.255.0
speed auto
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.16.1
no ip http server
!
access-list 10 permit any
access-list 11 deny any
!
line con 0
line aux 0
line vty 0 4
exec-timeout 0 0
password xxxxx
login
transport preferred none
!
end
2600 Config:
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname xxxx
!
no logging console
enable secret 5xxxxx
!
!
!
!
!
clock timezone PST -8
ip subnet-zero
ip rcmd remote-username admin
no ip finger
ip name-server 207.155.183.72
ip name-server 206.173.119.72
ip dhcp excluded-address 192.168.81.1 192.168.81.20
!
ip dhcp pool 0
network xxx.xxx.xxx.0 255.255.255.0
domain-name gerwick.com
dns-server 207.155.183.72 206.173.119.72
netbios-name-server 192.168.81.2
default-router 192.168.81.1
!
!
!
!
interface FastEthernet0/0
ip address xxx.xxx.xxx.1 255.255.255.0
no ip directed-broadcast
duplex auto
speed auto
!
interface Serial0/0
ip address 172.16.16.1 255.255.255.252
no ip directed-broadcast
service-module t1 clock source internal
service-module t1 timeslots 1-24
!
interface FastEthernet0/1
ip address 172.16.16.5 255.255.255.252
no ip directed-broadcast
duplex auto
speed auto
!
interface Serial0/1
ip address 172.16.16.9 255.255.255.252
no ip directed-broadcast
service-module t1 clock source internal
service-module t1 timeslots 1-24
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.16.6
ip route 192.168.82.0 255.255.255.0 172.16.16.2
no ip http server
!
access-list 10 permit any
access-list 11 deny any
!
line con 0
transport input none
line aux 0
line vty 0 4
exec-timeout 0 0
password xxxxx
login
transport preferred none
!
no scheduler allocate
end
When i check the interfaces i get this
2600:
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.81.1 YES TFTP up up
Serial0/0 172.16.16.1 YES manual up up
FastEthernet0/1 172.16.16.5 YES manual up up
Serial0/1 172.16.16.9 YES manual down down
1700:
Interface IP-Address OK? Method Status Protocol
FastEthernet0 192.168.82.1 YES TFTP up up
Serial0 172.16.16.10 YES manual down down
Serial1 172.16.16.2 YES manual up up
I can't see what i'm missing.
Solved! Go to Solution.
08-04-2003 11:23 AM
Try setting the clock source to line on one end and internal (which is already configured) on other end
08-04-2003 11:23 AM
Try setting the clock source to line on one end and internal (which is already configured) on other end
08-04-2003 11:34 AM
on the 1700 s0 is down down , can you paste in a sh int of s0 , you are not getting DCD if you have the cable plugged in to the demarc and to the router this is more than likely a carrier problem
08-04-2003 11:48 AM
What kind of WIC modules do you have? WIC-1T or WIC-2T? Is the router the new Cisco 2600 modular series?
If so in the W0 and W1 slots. They use the same bus on the main board. Here is a link on the WIC-2T.
08-04-2003 12:52 PM
Turns out it was the clock source. when i adjusted the setttings to this:
2600:
!
interface Serial0/0
ip address 172.16.16.1 255.255.255.252
no ip directed-broadcast
service-module t1 clock source internal
service-module t1 timeslots 1-24
!
interface Serial0/1
ip address 172.16.16.9 255.255.252
no ip directed-broadcast
service-module t1 timeslots 1-24
!
1700:
!
interface Serial0
ip address 172.16.16.10 255.255.255.252
service-module t1 clock source internal
service-module t1 timeslots 1-24
!
interface Serial1
ip address 172.16.16.2 255.255.255.252
service-module t1 timeslots 1-24
!
I was able to get the interfaces up. I'm not sure why this worked but it did, thanks for the recomendation on changes the clock source.
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