Thursday, April 7, 2011

LAB: EIGRP Filtering with STD Access-lists

Requirements:
Configure a one line standard access-list on R6 to filter out all routes coming from BB1 that have an odd number in the third octet.

R6:
router eigrp 10
distribute-list 1 in Serial0/0
!
access-list 1 permit 0.0.0.0 255.255.254.255


BEFORE

Rack1R6#show ip route eigrp 10
D 200.0.0.0/24 [90/2297856] via 54.1.1.254, 00:00:04, Serial0/0
D 200.0.1.0/24 [90/2297856] via 54.1.1.254, 00:00:04, Serial0/0
D 200.0.2.0/24 [90/2297856] via 54.1.1.254, 00:00:04, Serial0/0
D 200.0.3.0/24 [90/2297856] via 54.1.1.254, 00:00:04, Serial0/0


AFTER

Rack1R6#show ip route eigrp 10
D 200.0.0.0/24 [90/2297856] via 54.1.1.254, 00:00:03, Serial0/0
D 200.0.2.0/24 [90/2297856] via 54.1.1.254, 00:00:03, Serial0/0

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