Phil,
You may try putting a summary-address statement on the Ethernet interface
of the access server that summarizes all dialup users into one /26 that
you've designated. The syntax is 'ip summary-address eigrp [a.s.] [network]
[summary-mask]'. Whenever the remote /32 disappears, and the EIGRP process
sends out Queries to neighbors, the neighbors will immediately answer back
with no feasible successors, since they only have the /26 and not the more
specific /32.
I hope this helps.
Chris McCoy
----- Original Message -----
From: "Phil Barker" <[EMAIL PROTECTED]>
To: "cisco GroupStudy" <[EMAIL PROTECTED]>
Sent: Monday, September 04, 2000 3:00 AM
Subject: EIGRP - Stuck in active state ?
> Hi gang,
> I have a problem where some routes are getting
> SIA. Could anyone help out with a sanity check on my
> logic here ?
>
> I have a number of remote users that are coming
> in via a crappy AS5200. They are getting into the
> routing table with /32 bit masks, however, the remote
> network has been designated a /26 bit mask. Since the
> remote users are effectively hub & spoke there is no
> feasible successor when the remote user switches off
> and hence DUAL is kicked off every time ... NASTY
> .....
>
> Now, my question is how come the users are
> infiltrating the EIGRP table with a 32 bit mask ? when
> they have been defined on a 26 bit network ?
>
> I think that the answer lies in the fact that
> the AS5200 hasn't got "ip subnet-zero" configured and
> an example of a remote user is 137.89.99.33/26 (ip
> address changed for security purposes). This is using
> the zero subnet.
>
> So, does this make sense that the AS5200 on not
> being able to distinguish the network from the node
> portion introduces the address as a /32 ?????????
>
> This is quite an issue for me currently since
> if I am correct in my analysis then it is the AS5200
> that will invoke DUAL and since its a pile of crap
> that runs at 85% CPU utilisation it sometimes is not
> able to deal with the replies and so other more
> important networks also get SIA.
>
> Any comments would be greatly appreciated.
>
>
> Phil.
>
>
>
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