EIGRP Summary address

From: Robin Betterley (ro.betterley@gmail.com)
Date: Wed Feb 11 2009 - 13:31:42 ARST


Folks,
I was trying out and messing with the ip summary-address features for EIGRP.
one of the guideline states that you need candidate route in the routing
table in order for the summary to be advertise across the interface.

Well, it works perfectly, so i try a different way, something like this,

ip route 20.20.0.0 255.255.0.0 1.2.3.4

router ei 1
 redis static metric 1500 etc

interface s0/0
 ip sumary-address ei 1 20.20.0.0 255.255.0.0

hmm didnt get what i expect, or maybe i had expected it, but i couldnt fine
it anyway in the DOCdc that explained why it doesnt, in terms of specific
requirements of the candidate route. Long story short, maybe someone can
explain WHY this summary is not advertised?

lastly, can someone make some sense why the AD for eigrp summary is only
local significant? i mean the purpose of only locally significant. Thanks in
advance.

Robin

Blogs and organic groups at http://www.ccie.net



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