From: Brian Hescock (bhescock@xxxxxxxxx)
Date: Thu Dec 28 2000 - 19:26:46 GMT-3
In addition to distribute lists and the typical way we do route-maps, you
can also tag the routes so you don't have to worry about matching networks
all the time. Just tag the networks once then you can do a permit or deny
based upon the tag. Below is a url that covers it. Everyone should try
it at least once because you know how it is, if it can be configured on a
Cisco router, it can be on the exam.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/np1_c/1c
prt1/1cindep.htm
If you can't get to it, look to see if the url wrapped to the next line,
it's rather long.
Brian
On Thu, 28 Dec 2000,
Ronnie Royston wrote:
> I have found that manupulating admin distance along with the passive
> interface command is easier, albiet more 'dangerous'. Certainly, it takes
> less commands for this method. The higher admin distance should be on the
> remote routers, the lower on the core.
>
> -----Original Message-----
> From: Connary, Julie Ann [mailto:jconnary@cisco.com]
> Sent: Thursday, December 28, 2000 1:45 PM
> To: ccielab@groupstudy.com
> Subject: route-feedback, route-maps and mutual redistribution -
> discussion topic
>
>
> Hi All,
>
> I am noticing that solutions to many of the labs I am doing do not include
> distribute lists
> or route-maps to prevent route-feedback at mutual-redistribution points.
> Doyle, in his
> redistribution chapter (page 717) also does not use them but mentions on
> page 769 that you should
> always use them "any time a router is performing mutual-redistribution -
> the mutual sharing of routes between two
> or more routing protocols - route filters should be used to ensure the
> routes are advertised in only one direction."
>
> so does anyone have any comments on this? Are you all using route-maps to
> control redistribution at
> mutual-redistribution points - like a router redistributing between ospf
> and eigrp? Any rules of thumb to go by?
> Sometimes it's a real pain to get setup and can cost you alot of time -
> like why the defualt route is
> not getting propagated.
>
> Thanks,
>
> Julie Ann
> ------------------------------------------------------------------------
> Julie Ann Connary
> | | Network Consulting Engineer
> ||| ||| Federal Support Program
> .|||||. .|||||. 13635 Dulles Technology Drive,
> Herndon VA 20171
> .:|||||||||:.:|||||||||:. Pager: 1-888-642-0551
> c i s c o S y s t e m s Email: jconnary@cisco.com
>
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