07-08-2003 02:01 PM - edited 03-02-2019 08:42 AM
I am attempting to connect to 1751 routers w/serial interfaces via t1 line. Router "A" (host side) is identical to router "B" remote side. I want to keep them on the same subnet for simplicity purposes. I have performed this feat with csu/dsu modules in the past, but never with serial interfaces. Host side has an internet gateway seperate from the router itself - which the remote side will need access to also. For the life of me I cannot figure out what I am doing wrong. This is the configuration from router "A", router "B's" configuration is identical except for the BVI 1 IP address is x.x.x.22 instead of x.x.x.21. Any help is greatly appreciated.
Using 876 out of 29688 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname Cisco1
!
enable password xxxxx
!
memory-size iomem 25
ip subnet-zero
no ip domain lookup
!
!
!
bridge irb
!
!
interface FastEthernet0/0
description connected to EthernetLAN_1
no ip address
no keepalive
speed auto
bridge-group 1
!
interface Serial0/0
description connected to CiscoB
ip unnumbered FastEthernet0/0
bridge-group 1
!
interface BVI1
ip address 192.168.0.21 255.255.255.0
!
router rip
version 2
network 192.168.0.0
no auto-summary
!
ip classless
no ip http server
!
!
snmp-server community public RO
snmp-server enable traps tty
bridge 1 protocol ieee
!
line con 0
exec-timeout 0 0
password xxxx
login
line aux 0
line vty 0 4
password xxxx
login
!
no scheduler allocate
end
07-08-2003 08:15 PM
You are not actually routing over any interfaces in this router so the BVI isn't really being used. You could just have used 'no ip routing'.
If I understand correctly however, your internet gateway is accessable from an interface in this router therefore this interface should be configured to route IP, ie given an IP address.
Depending what RIP updates thegateway is sending, you may need a default route pointing to it eg
ip route 0.0.0.0 0.0.0.0
Unless your B router also has an external interface requiring routing, you might as well just use 'no ip routing' and set the default gateway to the IP address of the BVI in the A router eg
ip default-gateway 192.168.0.21
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