[cisco-bba] Distinct IP over L2TP/VPDN

[Denis V. Schapov]

Hi.

> > Problem:
> > 
> > DSL users are allocated user at domain details and some (on request) are
> > given fixed IP's. These are provided via our RADIUS on connection.
> > Occasionally users are given the same static IP's ( by mistake J ).
> > When this happens, we see identical next-hop WAN IP's via a 'show
> > users'. Neither user has connectivity since there is major packet
> > loss. Understandable.     
> >
> > Question:
> > 
> > Is there any way we can change this behaviour on router so that the
> > first user on particular IP works, subsequent users who connect  on
> > same IP have no connectivity at all?  
> 
> No, there is nothing you can do about this if you need to safeguard
> against incorrect Radius profiles.. There is no logic in IOS which
> prevents you from assiging the same IP address to two virtual-access
> interfaces.
> 
> oli

Hmm ...
What about
'ppp ipcp address unique' ?

12.3 mainline