2 Router Interfaces on same network.

[gkonheiser]

Hi there,

I a 2821 with 2 Gi interfaces and 4 switch ports.  Gi0/0 is WAN and Gi0/1 is LAN, network 192.168.23.0 . I want the 4 switch ports to be part of the same LAN. I have putting both ports in the same bridge group but no luck. and of course i cant assign an IP in that range to Int vlan 1.

How can I achieve this setup?

Thanks.

[Jeff Van Houten · Accepted solution]

Take the ip address off the gi0/1 interface, put both gi0/1 and int vlan 1 in the same bridge group and put the ip address on the bvi interface.


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[Richard Burts]

It is not entirely clear from your description so I will ask for some confirmation. It sounds like you have configured an IP address on Gig0/1 and also configured a bridge-group on the interface. Is that the case?

If this is what you have done then the result is that Gig0/1 is routing IP and will bridge non-IP traffic. And that is not what you need.

I suggest that you remove the IP address from Gig0/1 and make sure that the interface has bridge-group1. That should allow you to put the IP address on interface vlan 1 and allow the Gig0/1 and the switch ports to all be in the same network.

HTH

Rick

[gkonheiser]

Thanks very much for both your replys. Is it best to have int vlan1 or int bvi1 with the IP address. I tried with int BVI1 haveing the Ip address but sh ip int brief which showed down down. I also added

Bridge IRB

bridge 1 protocol ieee

bridge 1 route ip

I must be doing something wrong?

[Richard Burts]

Does the bridge-group command work on the interface vlan 1? I believe that bridge-group is needed for the BVI but I am not sure that it works on the vlan interface.

Perhaps it would help if you would post your configuration and also the outputs of show ip interface brief and of show spanning-tree

HTH

Rick

[gkonheiser]

Hi there,

Thanks again for the help. i will post my config shortly.

[gkonheiser]

I just retried the config with bridge group and all working now with the ip on int BVI1. Thanks verz much for all the help.

: )