From: Peter van Oene (pvo@xxxxxxxxxxxx)
Date: Mon Aug 26 2002 - 15:06:56 GMT-3
Ok, so the router in question is an ASBR. You can certainly use a
route-map to constrain which prefixes will be redistributed and indeed this
is the recommended way to put statics into OSPF if you have to. However,
keep in mind that you still need consistent databases per area and thus if
all your WAN sites are in the same area, they will all receive this
prefix. Furthermore, given this prefix enters OSPF as a type 5 LSA, every
OSPF router in a non stub area within the OSPF domain will also receive
this prefix. In many of the networks I've worked on, this is not entirely
desirable and hence extensive use of the NSSA area type is used to properly
constrain this information flooding.
Pete
At 01:58 PM 8/26/2002 -0400, Benny Chong wrote:
>Hi,
>
>I should give more detail... the route that i want to filter is a static
>route on the router which redistribute the static route into OSPF, and
>then the router will send the OSPF update to all other router in remote
>sites in the same area over WAN.
>
>I just test that I can just use a route map in the 'redistribute static'
>configuration under OSPF and use the route map to choose which static
>route that I want to redistribute into OSPF.
>
>Thanks a lot for your help!
>
>Ben
>
>
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