routing multiple Class C's

Leonard (pmfan@infinetgroup.com)
Tue, 13 May 1997 17:43:24 -0700 (PDT)

Hi,
We have obtained a new class C, which I'm thinking of reserving for
corporate ISDN clients, with subnets of 16 or 32 IP address each.
So let's say the class C I already have is a.b.c.d and that this new
one just obtained is e.f.g.h
I have the PM3 set up for incoming analog calls to have IP addresses
assigned from the IP pool taken from a.b.c.d. At the same time, I'd like
to have a ISDN client come in and via radius get assigned an IP address
subnet (say 16 ip addresses - subnet /28) which is from e.f.g.h

I'm pretty sure the PM3 can build the routes downwards, but how do I get
it to update my central LAN router that it's the next hop to get to the
corporate client's subnet? Actually, the PM3 first has to update itself
to let in packets destined for the isdn subnet. I understand EIGRP can do
this. I can of course specify a static route. But my concern is for the
future when we have say 10 PM3s, all on the same telephone overline #. So
a corporate client may at one time connect to the first PM3, and on
another day (say after a power failure) come in and connect to the last
PM3 instead. Static routes wouldn't work then.

Or have I just gone off in a wrong direction?

Thanks.
Leonard