From: Engelhard M. Labiro (engelhard@xxxxxxxxxxxxxx)
Date: Sun Mar 24 2002 - 08:49:20 GMT-3
Hi Khani,
My observation is, CRB will only bridges a protocol or routes a
protocol on an interface. So, either it routes or it bridges,
you can not make it to route and bridge a protocol at the same
time.
Try use IRB, if you want to bridge and the same time, routes
a protocol on an interface. By configuring an BVI interface,
you can make an interface to bridge and route a protocol.
> Hi All,
>
> Please help me with below problem, what I am doing wrong?
>
> Appreciate your help
>
> Thanks
> Khurram.
>
> --------------------------------------------------------------------------
>
> Topology
>
>
PC1(134.177.1.1)--eth0/0(Router3)Se0/0----Se0(Router1)Eth0---PC2(134.177.1.2
)
>
> Router3 -- CRB
> Router1 -- Transparent Briding (no ip routing)
>
> Task
> ***************
>
> Ping from PC1 to PC2
>
>
> Problem:
> ********
>
> I configured R3 for CRB. I included eth0/0 and se0/0 in bridge-group 1.
> I want to bridge IP on eth0/0 and se0/0 and route on rest of the
interfaces
> in
> R3. As soon as I write command "bridge-group 1 route ip" R3 bridged
> interfaces
> also immediately stops bridging and learnig macs. When I do "show bridge"
> after
> putting command "bridge 1 route ip", all MAC entries in the forwarding
table
> vanishes. When I remove the command all mac entries shows back (router
> starts learning).
>
> See the problem in below shapshot:
>
>
> first router is learning fine:
>
> R3#show bridge
>
> Total of 300 station blocks, 296 free
> Codes: P - permanent, S - self
>
> Bridge Group 1:
>
> Address Action Interface Age RX count TX count
> 00a0.cc3f.8184 forward Serial0/0 0 531 530
> 00a0.cc5f.6e4a forward Ethernet0/0 4 1 0
> 0090.2797.b68d forward Ethernet0/0 0 533 531
> 00b0.d070.cc74 forward Ethernet0/0 0 5 0
> R3#
>
> Now when I put command "bridge 1 route ip" and "bridge 1 bridge ip" the
> bridged
> interfaces stops learning macs (ping stops!!!!)
>
****************************************************************************
*
> *****
>
>
> R3#show BRidge
>
> Total of 300 station blocks, 300 free
> Codes: P - permanent, S - self
>
> Bridge Group 1:
>
> R3#
>
>
>
>
>
> Below is my R3 Config:
>
>
> R3#sh run
> Building configuration...
>
> Current configuration : 912 bytes
> !
>
>
> version 12.1
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname R3
> !
> logging buffered 4096 debugging
> enable secret 5 $1$eIiL$2jJx8etRggarWGFQxD/bi0
> !
> !
> !
> !
> !
> ip subnet-zero
> no ip routing
> ip host r1 134.177.211.1
> !
> !
> !
> bridge crb <-------------------------
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 3.3.3.3 255.255.255.255
> no ip route-cache
> !
> interface Ethernet0/0
> no ip address
> no ip route-cache
> no ip mroute-cache
> no cdp enable
> bridge-group 1 <-------------------------- bridged interface
> !
> interface Serial0/0
> no ip address
> no ip route-cache
> no ip mroute-cache
> bridge-group 1 <----------------------- bridged interface
> !
> interface Ethernet0/1
> no ip address
> ip pim dense-mode
> no ip route-cache
> no ip mroute-cache
> bridge-group 1
> !
> ip classless
> no ip http server
> ip pim rp-address 134.177.211.1
> !
> access-list 101 permit icmp any any
> !
> bridge 1 protocol ieee
> bridge 1 route ip <----------------- route ip/bridge ip
> !
> !
> line con 0
> exec-timeout 0 0
> line aux 0
> line vty 0 4
> exec-timeout 0 0
> password c
> login
> !
> end
>
> R3#
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:57:20 GMT-3