Cisco Systems Re: How to prevent propagation of a static default route in EIGRP
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Subject Author Date
Re: How to prevent propagation of a static default route in EIGRP Vincent C Jones 06-24-05
Posted by Vincent C Jones on June 24, 2005, 9:11 pm
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>Running EIGRP. I want to create a default route that is not propagated
>to other routers. It seems the "ip route" command is better suited for
>this task than the "ip default-network" command.
>
>However, even when creating a static default route with the "ip route"
>command, the route is advertised as a candidate default route. Is there
>anyway of preventing this behavior short of using an acess list or
>route map?
>
>Thanx!
>

EIGRP by default does not advertise static routes. So you will need
to remove the "redistribute static" command currently under "router
eigrp xxx" or if the static default route is to an interface rather
than an IP address, you would need to remove the "redistribute
connected" command under "router eigrp xxx."

Warning: Since this will probably break other aspects of your
configuration (otherwise the commands would not have been added in
the first place), you may find that using either a "distribute-list
<acl> out <interface>" command or route maps to filter the default
route from your EIGRP advertisements will be necessary. Also be
aware that unless you get pretty fancy, using route filters will
also prevent you from forwarding a default route learned by EIGRP
from another router, which may not be what you want either.

Good luck and have fun!

--
Vincent C Jones, Consultant Expert advice and a helping hand
Networking Unlimited, Inc. for those who want to manage and
Tenafly, NJ Phone: 201 568-7810 control their networking destiny
http://www.networkingunlimited.com

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