[c-nsp] LAC in IP and LNS in MPLS network

[Swaroop Potdar]

Hmm...this changes the thing a little, and if we had this explanation before 
we could have saved some bandwidth. :-)
 
Ok now this can be achieved by doing a route leak between the Global and VRF table.
Although such a thing is not recommend for vast implementation, but can be surely 
adopted as both are your domains, and its a fixup solution for your organization only.
 
For the route leak part you will need to add two static routes.
1) VRF static route for your VRF pointing to the LNS IP address.
2) For reverse route normal IPV4 route pointing back to the PE-CE 
   link where your CE is connected, and the same advertised in your global table.
 
HTH-Cheers,
Swaroop
 
 
 
 
 

	-----Original Message----- 
	From: Vikas Sharma [mailto:vikassharmas at gmail.com] 
	Sent: Wed 10/4/2006 5:44 PM 
	To: Swaroop Potdar; cisco-nsp at puck.nether.net; Oliver Boehmer (oboehmer) 
	Cc: 
	Subject: Re: [c-nsp] LAC in IP and LNS in MPLS network
	
	
	Hi,
	 
	Situation is a bit different. LAC is in my network which is IP network. Our sister concern has MPLS network which is totally different then our network. When I moveout from my end router (this will be CE for other network), i go in to MPLS enable network and LNS is there inside the MPLS network. 
	So first My router will act as a CE router
	Provider router acts as a PE router
	LNS s inside the provider MPLS network.
	 
	in this case how i can establish L2TP tunnel?
	 
	Regards


	 
	On 10/4/06, Swaroop Potdar <Swaroop.Potdar at corliant.com> wrote: 

		Yes till you have plain IP reachbility till your LNS it will work.
		As the LAC only requires IP reachbility for L2TP creation.
		 
		The VRF is imposed at the LNS. So only your LNS needs to run MPLS.
		And the connection till your customer is on plain layer 2 using L2TP and PPP
		 
		HTH-Cheers,
		Swaroop

			
			-----Original Message----- 
			From: Vikas Sharma [mailto:vikassharmas at gmail.com ] 
			Sent: Wed 10/4/2006 4:02 PM 
			To: cisco-nsp at puck.nether.net 
			Cc: 
			Subject: [c-nsp] LAC in IP and LNS in MPLS network
			
			

			
			Hi,
			
			Can I configure L2TP tunnel where my LAC is in IPv4 network and LNS in MPLS
			network.
			Call flow - Laptop dial -> LAC -> LAC AAA authentication -> LAC will confirm 
			the tunnel end point (i.e. IP of LNS)
			
			Regards
			Vikas Sharma
			
			_______________________________________________
			cisco-nsp mailing list  cisco-nsp at puck.nether.net
			https://puck.nether.net/mailman/listinfo/cisco-nsp
			archive at http://puck.nether.net/pipermail/cisco-nsp/