Chris, and all who responded.
Thanks for that.
We currently use "no auto-summary" on all routers
since we have discontiguous networks. We are currently
migrating the whole addressing system.
Will a summary address as you suggest work side by
side with "no auto-summary" or will one negate the
other ?
Thanks again for your assistance.
Phil.
--- Chris McCoy <[EMAIL PROTECTED]> wrote: > 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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