Did I miss something?

[att-sgcops]

I have 2 router connected:R1(e0:192.10.1.1)---(e0:192.10.1.2)R2

they are reachable at first, then I added another router r3 need to connect with R3 with the address in the same range:192.10.1.3, then I decide to configure bridging on R2:

interface Ethernet0

no ip address

no ip route-cache

bridge-group 1

interface Ethernet1

no ip address

no ip route-cache

bridge-group 1

bridge irb

bridge 1 protocol ieee

bridge 1 route ip

interface BVI1

ip address 192.10.1.2 255.255.255.0

Now I can ping from r2 to r3, but since I move the ip addres 192.10.1.2 from e0 to BVI1, I cannot ping R1 any more, why?

btw, r1 and r2 connected via switch.

[dnewell24 · Accepted solution]

I would check the ARP table on R1. The IP interface on R2 has moved to a BVI. I'm not sure what MAC the BVI would use; however I would assume it's changed. If the MAC for the 192.10.1.2 has changed could R1 ARP table (ARP entries exist up to 4 hours) entry for 192.10.1.2 be invalid?

Ryan

[att-sgcops]

when I use direct connect they are ok, but it via switch, not able to ping.