From: Lee Donald (Lee.Donald@bacs.co.uk)
Date: Wed Mar 10 2004 - 05:27:12 GMT-3
When you specify a wildcard you are specifying how many bits in the address to check.
For instance 142.52.126.1 0.0.0.3 would not check the last 3 bits of the Octet. In this case it would check the first 3 octets to see if they match, then it would check the first 5 bits in the last octet, leaving the last 3 bits unchecked.
I hope this helps.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Ahmed Mustafa
Sent: 10 March 2004 06:07
To: Budi Gunawan; ccielab@groupstudy.com
Subject: Re: The Subnet
When you specify the wildcard 0.0.0.0 you are just enabling ospf on an
interface with the address 10.10.10.1 only,
versus
0.0.0.255 means that the whole last octed will be able to run ospf. The
good example will be, if you have a router with three serial interfaces.
All the subnets are derived from 10.10.10.0/30, so 10.10.10.0,
10.10.10.4,10.10.10.8 and so on. Now you want to run ospf.
You could do either
router ospf 1
network 10.10.10.1 0.0.0.0 area 0
network 10.10.10.5 0.0.0.0 area 0
network 10.10.10.9 0.0.0.0 area 0
or just simply
network 10.10.10.0 0.0.0.255 area 0
HTH
Ahmed
----- Original Message -----
From: "Budi Gunawan" <bgunawan@hotpop.com>
To: <ccielab@groupstudy.com>
Sent: Tuesday, March 09, 2004 6:10 PM
Subject: The Subnet
> Hi All,
>
> I have some questions regarding configuring the dynamic routing protocol
> with difference subnets..
> What is the different between these configurations and when to apply it :
> router ospf 1
> network 10.10.10.1 0.0.0.0 area 0
> network 10.10.20.1 0.0.0.0 area 1
> and,
> router ospf 1
> network 10.10.10.0 0.0.0.255 area 0
> network 10.10.20.0 0.0.0.255 area 1
> Also between,
> router eigrp 100
> network 10.10.10.1 0.0.0.0
> network 10.10.20.1 0.0.0.0
> and,
> router eigrp 100
> network 10.10.10.0 255.255.255.0
> network 10.10.20.0 255.255.255.0
>
> And how is the result?
>
> Thank you and regards,
> Budi.
>
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