From: Menga, Justin (Justin.Menga@xxxxxxxxxx)
Date: Fri Dec 14 2001 - 00:27:14 GMT-3
Rob,
A few issues here:
1. Cat3900 - You have two options here (i) Use SRB and multiring/SRB on
routers or (ii) Use SRT. Easiest to use SRT on the Cat3900, so ensure
it is enabled.
2. Make sure the Cat3900 is configured correctly. First of all, turn
off briding on R3 and R8, and ensure you can ping across the Cat3900
(from R3 to R8). If you can, you have set up the Cat3900 OK, if not,
look at your Cat3900.
3. Don't configure IP on your bridging interfaces. If you configure IP
on these interfaces, IP packets will not be bridged. So remove the IP
address from R3 to0 and R1 fa0/0 and ensure they are bridging
(transparently). If you want R3 to be reachable via IP, you'll need to
enable IRB and configure a BVI.
4. You'll need the bridge 1 bitswap-layer3-address on R3 to ensure IP
ARP packets have the correct format MAC address inside them.
HTH
Justin
-----Original Message-----
From: Rob Rummel [mailto:Rummel@Hawaii.rr.com]
Sent: Thursday, 13 December 2001 9:18 p.m.
To: ccielab@groupstudy.com
Cc: Wayne Lewis; Frank B
Subject: Can't get translational bridging to work also!!
I followed the previous thread and I cant get translation bridging to
work. I tried all the suggestions in the last thread and still no good.
What am I missing. Here is my setup.
R1 fa0/0|-----------|e0 R3 to0 |10.3.8.3/24 |to0/0 R8
|--------- e0/0 10.3.8.8/24
10.3.8.1/24 | |
|---------- e1/0 11.3.8.8/24
11.3.8.1/24 secondary |___cat3900_______|
I want to be able to ping R8 Ethernet interfaces from R1 Currently I'm
not even able to ping R3's To0 interface. Here are the relevant configs
for R1 and R3
R1
interface FastEthernet0/0
ip address 11.3.8.1 255.255.255.0 secondary
ip address 10.3.8.1 255.255.255.0
no ip directed-broadcast
bridge-group 1 (don't think I need this here)
!
!
bridge 1 protocol ieee (don't think I need this here)
bridge 1 bitswap-layer3-addresses ( I tried this command on R3 also)
R3
source-bridge ring-group 300
source-bridge transparent 300 30 1 1
!
!
interface Ethernet0
no ip address
no ip directed-broadcast
bridge-group 1
!
!
interface TokenRing0
ip address 10.3.8.3 255.255.255.0
no ip directed-broadcast
ring-speed 16
source-bridge 3 1 300
(I tried placing bridge-group 1 here)
!
bridge 1 protocol ieee
-The faulty interface lies between the chair and the keyboard-
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