Cannot bridge vlan over Serial link

dkordyban · ‎04-09-2009

We are trying to bridge multiple vlans over Serial link. We have followed instructions given here:http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gt_bcp.html#wp1046286. I have turned debugging on the bridge, and both side show vlan match, but I cannot pass pings or anything over the serial link.

Thanks for your time

drolemc · ‎04-15-2009

Use CRB, but configure Frame Relay between the two routers and use subinterfaces to 'separate' the bridged and router traffic. Use Frame-relay encapsulation instead to get two virtual links.

http://www.cisco.com/en/US/docs/ios/lanswitch/command/reference/lsw_b1.html#wp1017127

Giuseppe Larosa · ‎04-15-2009

Hello David,

I would consider L2TPv3

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gtl2tpv3.html#wp1043064

this can allow you to bridge selectively only specified vlans on per lan subinterface basis.

Hope to help

Giuseppe