[nsp] ATM interface bridging

From: Steven Saner (ssaner@southwind.net)
Date: Mon Nov 15 1999 - 18:37:07 EST


I am trying to setup a bridged interface with multiple ATM PVCs on a
7206 for the purpose of provisioning ADSL. Below are the relavent
configuration snipits. My problem is this: I have two PVCs defined to
two different DSL circuits. The IPs at the remote ends of these
circuits is 206.53.111.1 and 206.53.111.2. I can ping both of theses
ip addresses from my 7206. I also have connectivity from each remote
machine to the 7206 and to the outside world. I do not, however, have
connectivity between the two remote machines. If I do a "debug arp" on
the 7206, I see arp requests comming from one of the remote machines,
but that request is never sent to the other one. I presume that the
solution is some kind of proxy arp or something, but I have not found
the answer. Can someone help?

Thanks

bridge irb
!
interface ATM6/0
 mtu 1500
 no ip address
 no ip directed-broadcast
 no ip mroute-cache
 no atm scrambling sts-stream
!
interface ATM6/0.1000 multipoint
 description ADSL Shared Interface
 ip directed-broadcast
 no ip proxy-arp
 atm pvc 1001 3 33 aal5snap 6144 6144
 atm pvc 1002 3 34 aal5snap 1536 1536
 bridge-group 1
!
interface BVI1
 description Interface for Shared ADSL
 ip address 206.53.111.6 255.255.255.248
 ip directed-broadcast
!
bridge 1 protocol ieee
 bridge 1 route ip

==================================================================
Steven Saner SouthWind Internet Access, Inc.
ssaner@southwind.net Systems/Network Administrator
http://www2.southwind.net/~ssaner http://www.southwind.net
                                        263-7963 Wichita (800)525-7963



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