Congruent with your last suggestion, what about using L2TPv3 in a LAC/LNS sort of configuration? It's very easy to setup if you don't already have an MPLS enabled network deployed.
-Vinny -----Original Message----- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Mike Sent: Tuesday, March 20, 2012 9:28 AM To: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] PPPOE pass through Cisco Routers On 03/20/2012 05:07 AM, Cipriano Montero, Infostock wrote: > > > As an environment as Wireless ISP, we are trying to deliver PPPOE > connections to our clients, in a routed network. So, our first problem is to > pass through PPPoE protocol over one or several cisco routers. Could > somebody help us with this task? > This isn't the cisco answer you are looking for, however.... PPPoE is a layer 2 protocol, and it (normally) requires that your clients are in the same broadcast domain as your PPPoE termination device (eg: plugged into the same switch for example). So, in a routed network, there won't normally be a layer 2 path here since you've got vlan's and / or routers connecting your network segments. One choice could be to use a PPPoE relay agent. This would have a router listen on some interface for PPPoE frames and then relay them to another interface where your PPPoE server is residing. This works for 1 hop when you have clients on one interface and the server is on another, but I don't think you want to try extending it beyond 1 hop. Another choice - and the one I myself use - is to create a layer 2 vpn. I know there are cisco mpls solutions for this which someone else can comment on. I happen to use an opensource package called OpenVPN and it's stable and reliable. Effectively you'd have two boxes - one out in your network facing your wireless customers, and then another near your PPPoE server, and there would be a tunnel built on UDP that the traffic would pass thru. MTU isn't really a problem although if you have jumbo frame support internally it would reduce your packet fragmentation. Good luck. Mike- _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/