Re: "AD on IP summary Address in Eigrp"

What you need to watch out for when you create the (eigrp summary route)
on your routers is that a NULL0 route will be created on that same router
or switch, this being said even if your router has a more specific route
the NULL0 route will blackhole any traffic that falls within that
summary-range.

Joe Sanchez

On 7/28/12 11:53 AM, "Jay McMickle" <jay.mcmickle_at_yahoo.com> wrote:

>Not really sure what you are asking, but EIGRP summary will always have
>an AD. It defaults to 5, but it can be modified.
>
>Can you rephrase your question?
>
>Regards,
>Jay McMickle- CCIE #35355 (RS), 3x CCNP (RS,Security,Design)
>Sent from my iPhone
>
>On Jul 28, 2012, at 5:15 AM, "ccie.butcher" <ccie.butcher_at_gmail.com>
>wrote:
>
>> Is there always necessary to add an AD value (less than 90) while
>> configuring manual summarization in EIGRP by the command - ip
>> summary-address eigrp <AS no> <Ip addr> <Mask> <AD> or it is only
>>required
>> when we are doing the manual summarization of same ip addresses on
>> different routers in order to avoid the reception of summary
>>advertisement
>> of same address from different routers.
>>
>> --
>> Thanks and Regards
>>
>>
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Received on Sat Jul 28 2012 - 12:43:28 ART