04-09-2010 04:04 PM - edited 03-06-2019 10:33 AM
Hi all,
If we have Router A connected to 3 different networks and is using EIGRP
172.16.5.144/28
172.16.5.160/28
172.16.5.128/28
so what summary route will be shown in output of sh ip route on Router A
many thanks
mahesh
Solved! Go to Solution.
04-09-2010 04:24 PM
Hi,
If you want a single summary statement, the best one is this:
172.16.5.128/26
Just make sure there are no overlapping in any other part of the network.
Federico.
04-10-2010 07:57 AM
Mahesh,
Yes. When you configure eigrp summary address of 172.16.5.128/26, it will have an entry in local RIB pointing to null interface.
Regards,
Nagendra
04-09-2010 04:24 PM
Hi,
If you want a single summary statement, the best one is this:
172.16.5.128/26
Just make sure there are no overlapping in any other part of the network.
Federico.
04-10-2010 02:52 AM
Hi Mahesh,
From your description, all 3 networks are connected to Router A. So it all will be shown as connected route in routing table. There wont be any summary route generated by default.
If you configure a EIGRP summary, an entry pointing to null interface will be installed in your routing table.
HTH,
Nagendra
04-10-2010 07:44 AM
Hi,
thanks for reply
so if i config this as summm router then entry in routing table will be
172.16.5.128/26 and it points to null table right?
mahesh
04-10-2010 07:57 AM
Mahesh,
Yes. When you configure eigrp summary address of 172.16.5.128/26, it will have an entry in local RIB pointing to null interface.
Regards,
Nagendra
04-10-2010 08:07 AM
Hi,
Thanks for reply
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