EIGRP: do not inform topology changes per neighbor

From: Carlos Trujillo (carlos.trujillo.jimenez@gmail.com)
Date: Sat Aug 16 2008 - 14:31:46 ART


Hi group.

Im not so completely sure abou what solution would be the correct in the
following scenario:

[R1]------------EIGRP--------[R2]fas0/0------------------EIGRP---------------[R3]

In R2 if we want to not inform topology changes to a single neighbor (R3)
 what solution would be correct?

Option A: (Block advertisement of all networks to the neighbor)

ip prefix-list DENY seq 5 deny 0.0.0.0/0 le 32

router eigrp 100
distribute-list prefix DENY out fas 0/0

***********************************

Option B: (send a summary of my internal networks, in the interface where
the neighbor is located)

int fas 0/0
ip summary-address eigrp 10 172.16.0.0 255.255.0.0

I think solution B will fit, what do you think?

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