Re: IRB-Missing something??

From: Stephen Oliver (stevie_oliver@xxxxxxxxxxx)
Date: Sun Mar 10 2002 - 12:08:46 GMT-3


   
I think you may need

bridge 1 bridge ip

On the router.

Stephen.

>From: "Michael C. Popovich" <mpopovich@layer3.biz>
>Reply-To: "Michael C. Popovich" <mpopovich@layer3.biz>
>To: <ccielab@groupstudy.com>
>Subject: IRB-Missing something??
>Date: Sat, 9 Mar 2002 14:59:53 -0600
>
>I have a 2620 with a FastEthernet attached to Cat5K on port 2/12.
>
>Speed and duplex have been forced to 100/Full on both sides. There is an
>ISL trunk between them.
>
>I have two sub-interfaces on the 2620 FA0/0.100 and FA0/0.300 for VLANs
>100 & 300 respectively. I created a bridge group on the 2620 and setup
>IRB with a BVI interface. The IP addresses are 172.16.135.14/28 on the
>BVI and for the 5K it is 172.16.135.2/28 in vlan 100. My switch can't
>ping the 2620 and the 2620 can't ping the switch. When I debug ip packet
>on the 2620 I get a encapsulation failed from the BVI interface. I was
>under the impression the BVI would be able to ping the switch.
>
>I have two other routers attached one on VLAN 100 and the other on VLAN
>300 but both on the 172.16.135.0/28 network. They can ping each other
>and the switch. I know the bridging is working I just don't fully
>understand why the BVI interface itself can't ping anything on the same
>network.
>
>TIA
>
>MP
>
>Configs are posted below.
>
>2620
>
>interface FastEthernet0/0
> no ip address
> speed 100
> full-duplex
>!
>interface FastEthernet0/0.100
> encapsulation isl 100
> no ip redirects
> bridge-group 1
>!
>interface FastEthernet0/0.300
> encapsulation isl 300
> no ip redirects
> bridge-group 1
>!
>interface Serial0/0
> no ip address
> shutdown
> no fair-queue
>!
>interface BVI1
> ip address 172.16.135.14 255.255.255.240
>!
>ip classless
>no ip http server
>!
>!
>bridge 1 protocol ieee
>
>
>Cat5K
>
>set interface sc0 100 172.16.135.2 255.255.255.240 172.16.135.15
>clear trunk 2/12 2-99,101-299,301-1005
>set trunk 2/12 on isl 1,100,300



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