From: Annu Roopa (annu_roopa@xxxxxxxxx)
Date: Sat Feb 23 2002 - 19:28:09 GMT-3
Rajeev,
Thanks for posting the answer but couple of questions
as it confuses me.
1.Why have u IP on To of R2 and none on Ethe0 of R3 ?
2.Why have u IP add of Ser1 of R3 and nothing on R2
serial ?
3. More important is what are ur R1 and R4 configs.
What are the IP address(es) on their To and Eth
interfaces respectively.
Can u post their configs too ? does Ping work from
both ends.
Thanks in advance,
Annu
--- RSiddappa@NECBNS.com wrote:
>
>
> Hi Guys thanks for every ones help.
>
> Here is the working config. Looks like I had not
> disabled the IP routing on
> one of the routers which was doing bridging. But it
> was good exercise.
>
> Set up is as follows :
>
>
>
>
R1-----To--------R2---------So--------------R3---------E0-----------R4
>
>
> R1 and R4 are used as end hosts, and R2 and R3 are
> actually doing the
> bridging.
>
> It is absolutely important that routing is disabled
> on R2 and R3 for this
> set up to work.
> Assign some IP addresses to R1 and R4's Token ring
> and Ethernet interfaces
> so that they are in the same subnet. Once u are
> ready with configurations on
> R2 and R3 try to ping from R1 to R4.
>
> Here is the working solution. ( Config's of R2 and
> R3 only).
>
>
> hostname R2
> !
> enable password cisco
> !
> ip subnet-zero
> no ip routing
> no ip domain-lookup
> !
> interface Serial0
> no ip address
> no ip directed-broadcast
> no ip route-cache
> no ip mroute-cache
> bridge-group 1
> !
> interface Serial1
> no ip address
> no ip directed-broadcast
> no ip route-cache
> no ip mroute-cache
> shutdown
> !
> interface TokenRing0
> ip address 10.10.10.6 255.255.255.0
> no ip directed-broadcast
> no ip route-cache
> no ip mroute-cache
> ring-speed 16
> bridge-group 1
> !
>
> interface BRI0
> no ip address
> no ip directed-broadcast
> no ip route-cache
> no ip mroute-cache
> shutdown
> !
> interface PCbus0
> no ip address
> no ip directed-broadcast
> no ip route-cache
> no ip mroute-cache
> shutdown
> !
> ip classless
> !
> bridge 1 protocol ieee
>
> bridge 1 bitswap-layer3-addresses
>
> Absolutely important command for this setup or any
> set up using the
> combination of Token ring and Ethernet to work.
>
> !
> line con 0
> privilege level 15
> password cisco
> login
> transport input none
> line aux 0
> line vty 0 4
> password cisco
> login
> !
> end
>
> R2#sh bridge
>
> Total of 300 station blocks, 298 free
> Codes: P - permanent, S - self
>
> Bridge Group 1:
>
> Address Action Interface Age RX
> count TX count
> 00e0.f751.da7b forward TokenRing0 0
> 112 56
> 00e0.1e3e.a119 forward Serial0 0
> 18 9
>
>
>
>
>
> hostname R3
> !
> !
> !
> !
> !
> !
> ip subnet-zero
> no ip routing
> no ip domain-lookup
> !
> cns event-service server
> !
> !
> !
> !
> !
> interface Ethernet0
> no ip address
> no ip route-cache
> no ip mroute-cache
> bridge-group 1
> !
> interface Serial0
> no ip address
> no ip route-cache
> no ip mroute-cache
> shutdown
> no fair-queue
> !
> interface Serial1
> ip address 30.30.30.2 255.255.255.0
> no ip route-cache
> no ip mroute-cache
> clockrate 72000
> bridge-group 1
> !
> ip classless
> no ip http server
> !
> !
> bridge 1 protocol ieee
> !
> line con 0
> transport input none
> line aux 0
> line vty 0 4
> login
> !
> end
>
> R3#sh bridge
>
> Total of 300 station blocks, 298 free
> Codes: P - permanent, S - self
>
> Bridge Group 1:
>
> Address Action Interface Age RX
> count TX count
> 00e0.f751.da7b forward Serial1 0
> 122 61
> 00e0.1e3e.a119 forward Ethernet0 4
> 23 14
>
>
> R.
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