03-15-2011 10:22 AM - edited 03-04-2019 11:45 AM
Hello,
I'm trying to add a new Network (20 A) into EIGRP. Currently that new network is using static routing and has two default routes with admin distances:
ip route 0.0.0.0 0.0.0.0 10.75.7.2 150
ip route 0.0.0.0 0.0.0.0 10.75.5.8 200
My existing network (20B) also has a default route redistributed statically:
ip route 0.0.0.0 0.0.0.0 10.20.10.254
I would like to ensure that when adding the new network (20A) to the EIGRP AS i won't be overriding any existing default routes already in place via the "redistribute static" commands in either network (10.75.0.0/16 or 10.20.0.0/16).
in the 20A Network there is an admin distance attached to the static routes which i don't think is recognized by another AS or Routing Protocol. I'm also somewhat certain that the hops/metrics of the newly redistributed statics would be less favorable than the existing routes and would not be used because they would be atleast 1 to 2 additional hops away. I'd like some confirmation that this would indeed be the case. Also, should i create a distribute list or create a route-map to tag or ensure that any newly discovered "redistribute statics" as a result of joining 20A to EIGRP AS20 are NOT used?
03-18-2011 02:36 PM
As per your requirement, the 20A and 20B will prefer their individual static routes as they have a better AD here.
However you will be getting the EIGRP external routes in the topology tables that wont show up in the routing table
as per routing decision.
03-21-2011 01:20 PM
From what i understand 20A and 20B are two different sites connected via EIGRP with BOTH sides using DEFAULT static route injected. Basically when redistributing static on site A, only the static route available in RIB(routing table) will be redistributed when it reaches 20B, it will not be installed in routing table as you have a better AD already installed and vice versa.
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Sebastian
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