From: OWEN, DAN (SWBT) (do7941@xxxxxxx)
Date: Wed Jan 02 2002 - 16:54:25 GMT-3
I'll add my two cents....
I prefer specifying each interface and network statement with the
appropriate mask (e.g. if the interface is using a /26 mask, then the OSPF
network statement should also use the /26 mask).
I have seen that when you are using a blanket mask (e.g. network 10.1.0.0
0.0.255.255 area 0) for multiple interfaces (with various-sized subnets
across multiple routers) that problems occur. Specifically, some routes are
omitted from the routing table. This usually only becomes a problem in a
large network, but could appear in a lab environment.
Being more specific will cost a bit of typing, but could avoid possible
problems.
Dan Owen
-----Original Message-----
From: Williams, Glenn [mailto:WILLIAMSG@PANASONIC.COM]
Sent: Wednesday, January 02, 2002 8:51 AM
To: 'ccielab@groupstudy.com'
Subject: Simple OSPF question
Hi,
Usually when I enable ospf on an interface, for example if the interface is
137.20.20.1/24, I would say:
net 137.20.20.1 0.0.0.0 area x
I could say:
net 137.20.20.0 0.0.0.255 area x
but what would I gain?
Just one of those questions I've been meaning to ask.
GW
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