From: lgao (lgao@xxxxxxxxx)
Date: Wed Nov 07 2001 - 14:56:56 GMT-3
I don't think it is the best practice to advertise a host mask, it looks
like a lazy thing that dont' want to figure out what the true mask is.
Courtney Foster wrote:
> It is a host specific mask....because you don't have broadcast...you are
> telling OSPF that this host is Area 10...At least that's what I think
>
> -----Original Message-----
> From: Dennis #6 [mailto:vacant@home.com]
> Sent: Wednesday, November 07, 2001 12:04 PM
> To: CCIE Groupstudy
> Subject: CCBootCamp 5 OSPF over frame question
>
> I noticed on the CCBootCamp lab 5 solution that the wildcard mask on
> each router for the point-to-multipoint frame connections is 0.0.0.0
> (see below). Is there a good reason for using this mask as opposed to
> 0.0.0.255 (it's a /24 subnet)? When is it best to use 0.0.0.0 versus
> 0.0.0.255. I thought it was normal to use the inverse mask that
> corresponds to the subnet mask on that interface. What am I missing?
>
> router ospf 1
> redistribute igrp 1 metric 20 metric-type 1 subnets
> network 172.168.100.5 0.0.0.0 area 10 !point to multipoint frame
> connection network 137.20.20.0 0.0.0.255 area 0 area 10 virtual-link
> 172.168.30.97 area 10 virtual-link 172.168.100.6
>
> Thanks,
>
> Dennis #6
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