From: Jay (ccienxtyear@hotmail.com)
Date: Thu Oct 24 2002 - 13:53:49 GMT-3
what I think makes the different is that OSPF has areas. So on a router, if
you have 2 ethernet interfaces and you are running OSPF and have defined an
area for the subnet thats on one of the ethernet interface, OSPF will not
send hellos to the other ethernet interface since it is not part of an OSPF
area. Unlike Rip, IGRP & EIGRP, theres no areas. When you configure these
protocols on a router, it will send hellos, broadcast to all interfaces on
this particular router, unless you passive them.
-Jay
----- Original Message -----
From: "Tom Young" <gitsyoung@yahoo.co.jp>
To: <ccielab@groupstudy.com>
Sent: Wednesday, October 23, 2002 10:42 PM
Subject: passive-interface command
> Hi, group
>
> Sorry for a simple question about the passive-interface
> command, I know in the sence of distributing different
> routing protocol we oftenly use the passive-interface
> command, and I notice it is always rip , igrp, and eigrp
> use it, (surpess rip eigrp's message to other area) for
> the ospf and bgp it is always not use it, I don't know
> why...
> If you said rip and eigrp has the broadcast or
> multicast address, but the ospf also has multicast address
> right?
>
> Thanks alot
>
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