[cisco-bba] L2TP on dynamic IP

[Arie Vayner]

John,

What would most likely be a better solution for both solutions is to assign
the customer a fixed IP allocated from RADIUS when they connect over L2TP (I
assume PPP...)
This will allow you to have a static BGP session with the statically
allocated IP address.

Another option is to look at the BGP dynamic neighbors feature:
http://www.cisco.com/en/US/docs/ios/12_4t/ip_route/configuration/guide/brbpeer.html#wp1131929

For IPSec there are quite a few solutions for IPSec sessions with dynamic
peers.
I think this could be a good starting point:
http://www.cisco.com/en/US/products/ps6635/prod_white_papers_list.html

Arie

On Wed, Jan 19, 2011 at 8:23 PM, John Fitzgerald <
john.fitzgerald at internet.de> wrote:

> Hi,
>
> I've got two design questions:
>
>
> 1. Is it possible to map a net via L2TP (IPv4 PI Space) to a client, which
> comes from a dynamic IP Address? E.g he has RIPE PI Space AAA.BBB.CCC.DDD
> and as he connects, routers will allow traffic to his network
> AAA.BBB.CCC.DDD and BGPv4 will recognize an will aloe route servers to be
> changed...
>
> 2. Is it possible to have the IPSec with (1.)?
>
>
> Cheers,
>
>
> John
>
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