From: Ron Trunk (rtrunk@xxxxxxxxxxxxx)
Date: Fri Jul 23 1999 - 14:23:42 GMT-3
>Pamela is right in that LS routing protos can't be filtered the way that DV
>can be.
>
I agree 100%
>The routes in OSPF are calculated by SPF from LSA and no routes are
>transferred amoung routers in the area at any time. However, I think with
>distribute-list you can filter routes that are calculated by OSPF and then
>put INto the table. This is only effective on the local router, therefore,
>to eliminate a route from all routers in an OSPF area you would have to put
>this statement on all the routers. The LSAs would not be effected.
>
But if that router is the distribution router, as in Bill's case, it would
make sense, since he is filtering routers learned from outside the domain
(e.g. RIP). If the routes are filtered before they get into the routing
table, OSPF won't redistribute them to the other OSPF routers.
Ron
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