06-26-2007 04:06 AM - edited 03-03-2019 05:36 PM
Hello,
We have to provide connectivity to one of customer over our IP network.Customer has wireless last miles at both locations terminating at their router's ethernet interfaces.Customer requirement is to use same IP subnet at both locations means bridging over IP network so kindly guide me for this , as one of possible solution could be L2TPv3 but we can't do configuration at our(SP) end due to some policy matters. What are other solutions which we can implement at customer equipments only.
Regards,
Mujeeb
06-26-2007 04:10 AM
Try convincing you customer to use different subnets at the sites because bridging is inefficient, hard to configure and diagnose, an generally unreliable. Generally speaking, customers do not have a real requirement to run bridging, but they request it anyway because unable to configure their systems properly.
If that fails, try configuring bridging over GRE tunnel - this is not supported officlay by cisco, but may work.
06-27-2007 01:24 AM
Hello,
I have created GRE tunnel between both locations but unable to put tunnel interface into bridge-group while I have seen conf. of a cisco router in which bridge group was assigned to a tunnel interface.Kindly guide me in this regard.Is there any possibility to achieve same solution using BVI interface ?
Regards,
Mujeeb
06-27-2007 01:41 AM
Hello,
exactly the possibility of placing a tunnel interface in bridge group is the one never officially supported by cisco, so if the router doesn't take the command, I'm afraid you have nobody to complain to.
06-27-2007 01:56 AM
Hello,
Thanks for the prompt response.Well any other solution to provide Transparent LAN Switching over an IP network.Would IRB or CRB would work for me ?
Regards,
Mujeeb
06-27-2007 06:42 AM
We have a similar situation and our solution right now is using Metro Ethernet. Ask your local telephone providers if they offer this. It's simply a L2 network through the provider. But be careful multicast's through the network. This solution is great for temporary applications and is not suggested for full production.
06-29-2007 09:51 AM
Hello Mujeeb,
Bridging over GRE works. Just configure the following (bridge group number must be the same as the BVI interface number):
bridge irb
bridge 1 protocol ieee
interface BVI1
ip address /an address from the bridged network/
interface Tunnel x
bridge-group 1
(the IOS will tell you that this is an undocumented, unsupported command)
interface FastEthernet x
bridge-group 1
You need to do this on both end.
07-02-2007 05:31 AM
Hello,
Yes , its working. Thanks to all of you.
Regards,
Mujeeb
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