[c-nsp] Routing within a L2TP session using VPDNs

[Kristofer Sigurdsson]

We are doing a very similar thing, but we don't have to route to a LAC
address on the LNS,
our routes are to the client address (assigned by the LNS, from a
RADIUS server).

We do the routes dynamically via the use of the Framed-Route RADIUS attribute.

-Kristo

2006/2/10, Alex Foster <afoster at gammatelecom.com>:
> I am trying to set up a number of L2TP sessions to a 3620 using VPDNs. The
> LAC is non cisco product - but works well and I have the tunnels established
> and working.  What Im not sure about is how to route to the client network
> on the back of the LAC.  Diagram:
>
> Client Network------LAC--------LNS-------ISP
>
> Its a basic config on the 3620 using the default VPDN group and a
> virtual-template.
>
> At the moment the only way I can route to the client network (from the ISP
> network) is to configure a static route on the LNS (to the client network)
> via the tunnel address on the LAC (this address is assigned by the LAC).  I
> need to scale this network beyond a few thousand users (3620 is only a test
> box at the moment) so adding static routes to each client network isnt
> ideal - Im also not keen on using routing protocols.  Any help would be
> appreciated.
>
> ...
>
> vpdn-enable
> !
> vpdn-group Access
> ! Default L2TP VPDN group
>  accept-dialin
>   protocol l2tp
>   virtual-template 1
>  no l2tp tunnel authentication
>  source-ip 192.168.10.1
> !
> !
> interface loopback 0
>  ip address 192.168.254.254 255.255.255.255
> !
> interface FastEthernet1/0
>  ip address 192.168.10.1 255.255.255.252
> !
> interface FastEthernet1/1
>  ip address 10.50.32.180 255.255.255.0
> !
> interface Virtual-Template1
>  ip unnumbered Loopback0
> !
> ip route 0.0.0.0 0.0.0.0 192.168.10.2
>
>
>
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