Two Routers

[blah0]

I am a complete novice on cisco equipment, so be gentle.

I have a 2514 and 2503 router. I have connected both together using an aui/rj45 transceiver + crossover cable. The led light shows connectivity, and a 'sh int e0' on each shows that they are communicating.

But, I cannot ping between them. Here is the running config from the 2514:

Current configuration : 589 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Cisco2514
!
!
ip subnet-zero
!
!
!
!
interface Ethernet0
ip address 192.168.4.1 255.255.255.0
!
interface Ethernet1
no ip address
shutdown
!
interface Serial0
no ip address
shutdown
!
interface Serial1
no ip address
shutdown
!
router igrp 10
network 192.168.4.0
!
ip classless
ip route 192.168.4.0 255.255.255.0 192.168.3.1
ip http server
ip pim bidir-enable
!
!
access-list 1 permit any
!
!
line con 0
logging synchronous
line aux 0
line vty 0 4
login
!
end

Running-config for the 2503:

Current configuration:
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Cisco2503
!
!
!
!
!
!
ip subnet-zero
!
!
!
!
interface Ethernet0
ip address 192.168.3.1 255.255.255.0
no ip mroute-cache
!
interface Serial0
no ip address
no ip mroute-cache
shutdown
!
interface Serial1
no ip address
no ip mroute-cache
shutdown
!
interface BRI0
no ip address
no ip mroute-cache
shutdown
!
router igrp 10
network 192.168.3.0
neighbor 192.168.4.1
!
ip classless
ip route 192.168.3.0 255.255.255.0 192.168.4.1
no ip http server
!
access-list 1 permit any
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
!
line con 0
logging synchronous
transport input none
line aux 0
line vty 0 4
password cisco
login
!
end


As you can see I added a simple 'permit any' access-list, added a static route between both of them (because I am running out of ideas), and enabled IGRP on both. If you guys need any more information let me know, I'm not sure what I'm doing wrong.

 

[JOAMON]

When directly connected in this manner they need to be on the same subnet. That is why you cannot ping it. Or you need to put an access list on the interfaces to let the other subnet in.

 

[firecodex]

You've also got your routing statements reversed. Though you don't have any networks connected to the second ethernet port on the two routers, you've configured the routers to connect to their peer for the locally connected subnet.

Anotherwords, on the 2514, you entered:
"ip route 192.168.4.0 255.255.255.0 192.168.3.1"
This tells the router that if it needs a computer on the 192.168.4.0 network it needs to contact the router at 192.168.3.1

Then on the 2503, you have:
"ip route 192.168.3.0 255.255.255.0 192.168.4.1".
This tells the router that if it needs a computer on the 192.168.3.0 network, it needs to contact the router at 192.168.4.1.

So essentially this is a routing loop, because it looks as if you are intending to have the 2514 on the 192.168.4.0 network and the 2503 on the 192.168.3.0 network. Just to be sure we're on the same page, you have also not assigned the ip addresses for both routers' eth1 interfaces; those would connect to the networks they are providing routing for.




------------------
Firecodex
CCNA/MCSA/MCP/A+/Net+