Problem with serial port on cisco 2503 router

joki

joki

joki

Associate
Joined
15 Jan 2004
Posts
268
Location
Ipswich
Hi,
Ive just got 2 2503 routers, and I'm just trying to get them to ping each other, problem is is that I cant even get the status on either router to go into the up position for any length of time let along the protocol status.

Im going into the interface, setting an ip address and subnet mask, setting the clockrate on the DCE end, and giving the no sutdown command, but this is still not allowing the status to go into the up position.

I know that the protocol status is down as i havent configured a route or given a routing protocol, but surly the status should be up? Im used to 2601's which we use at uni and they're a little different.

What do you recon is the problem? Im begining to think its a possible cable problem?
 
Thanks Laser402, Im going to bring it into uni tomorrow and see if I can find what the problem is. Does anyone else have any ideas? Would be much appreciated!
 
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption

hostname Router

boot-start-marker
boot-end-marker

no aaa new-model
ip subnet-zero

interface Ethernet0
ip address 192.168.3.1 255.255.255.0

interface Serial0
no ip address
shutdown

interface Serial1
ip address 192.168.2.2 255.255.255.0
clock rate 56000

interface BRI0
no ip address
encapsulation hdlc
shutdown

ip http server
ip classless

line con 0
line aux 0
line vty 0 4
end
 
Router#show ip int brief
Interface IP-Address OK? Method Status Prot
ocol
BRI0 unassigned YES unset administratively down down
BRI0:1 unassigned YES unset administratively down down
BRI0:2 unassigned YES unset administratively down down
Ethernet0 192.168.3.1 YES manual up up
Serial0 unassigned YES unset administratively down down
Serial1 192.168.2.2 YES manual down dow
 
try the other interface, shut then no shut.
try cdp neighbour to see if there is layer 2 connectivity, that will check if the routers can see each other.

if not then it might be either an interface or cable problem.
might also want to try setting the bandwith the serial link will be using... not sure if it will help but also worth a shot.
 
Last edited:
Just tried show cdp neighbor to no avail. Im beginning to think it must be the cable. Ive tried changing to different interfaces and same problem. thanks for the advice though nuttybugger
 
Hoping I am not stating the obvious but you do have a DTE-DCE cable with the DCE end connection to the router you are Setting the DCE clock.
 
yeah checked that, thanks though thorne. Although the cable is a very small cable, the ones we use at uni have a db60 connector block in the middle. This one is not like that it just has 2 serial connection blocks on it
 
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