Re: need confirmation about "eigrp summary-adddress"

From: Todd Carswell (acarswell@nc.rr.com)
Date: Tue Jan 07 2003 - 14:50:50 GMT-3


Ali,

Do you have "auto-summary" disabled under the EIGRP routing process? If
not, then the default behavior of EIGRP is to summarize locally
connected subnets. Your loopback IP addresses may appear to be getting
summarized by the "ip summary-address" command but the auto-summary
feature may be doing it instead.

Issue the command "no auto-summary" under the EIGRP process, clear your
EIGRP neighbors and re-check your routing tables. Your loopbacks should
not be getting summarized anymore. The "ip summary-address" command
applies only to non-local networks.

Later.

Todd

Ali Fahmi wrote:

> Hi All, refer to Routing TCP IP Vol I Book By Jeff Doyle, pg 726 ,
> 3rd paragraph, it says, " the eigrp summarization applies only to
> routes being redistributed inte EIGRP process domain"
>
> I try in my lab as follow,
>
> router A --------------------------------Router B
> Lo0:192.168.1.0
> Lo1:192.168.2.0
>
> All router above are running EIGRP proc.ID 1
> refer to Jeff Doyle Book, I can not summarize internal routes, but in
> my lab, I can do it, anybody can explain?
>
> thx,
> Ali
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