From: Atif Awan (atifawan@xxxxxxxxxxx)
Date: Fri Apr 27 2001 - 14:57:28 GMT-3
This command changes the router's lookup algorithm. No doubt OSPF is a
classless protocol but it only provides the router with the routes, it does
not in any way affect the way a router determines how to forward packets (
that is using the classful or the classless algorithm ).
>From: "radha rani" <radhaccie@hotmail.com>
>Reply-To: "radha rani" <radhaccie@hotmail.com>
>To: ccielab@groupstudy.com
>Subject: ip classless
>Date: Fri, 27 Apr 2001 10:00:06 -0400
>
>I have a question re: ip classless. My understanding is that if there is
>no
>specific route for a subnet in the routing table, this command allows the
>router to forward packets to unknown destinations using the default route.
>This being the case when the destination is a subnet of a network which is
>known to the router.
>
>My question is : since OSPF is a classless protocol, why do I need this
>command to have the router forward packets using the default route. I see
>this all the time where the router will not utilize the default route until
>this command is added.
>
>I can unserstand needing it with IGRP/RIP but why with OSPF?
>
>Can someone expalin. Thanks so much.
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