From: Godswill Oletu (oletu@inbox.lv)
Date: Fri Dec 09 2005 - 19:55:27 GMT-3
James,
I do not think that using the 0.0.0.0 mask to add an interface into an IGP
will influence how that interface IP gets advertised.
!
interface fa0/0
ip address 1.1.1.1 255.255.255.0
!
network 1.1.1.1 0.0.0.0 area 0
Simply said, put ONLY interface 1.1.1.1 into area 0, if you check your other
OSPF routers, the route to 1.1.1.1 will show as 1.1.1.0/24.
HTH
Godswill
.
----- Original Message -----
From: "James Matrisciano" <jmatrisciano@kenttech.com>
To: "Melwani, Manoj J" <melwanim@citigroup.com>; "Kim Judy"
<kim23uk@gmail.com>; <ccielab@groupstudy.com>
Sent: Friday, December 09, 2005 5:12 PM
Subject: RE: Wildcard issue
> You need to watch out for your restrictions on the 0.0.0.0 mask. If you
> have a restriction that all interfaces must be advertised with their
> original mask, make sure you do not use the 0.0.0.0 unless you are
> allowed to use the ip ospf network point-to-point command under the
> interface you are conneting with. Again, this will fall under the
> restrictions of how you can have your ospf neighbors talk to each other.
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Melwani, Manoj J
> Sent: Friday, December 09, 2005 4:45 PM
> To: Kim Judy; ccielab@groupstudy.com
> Subject: RE: Wildcard issue
>
> The best practice is to use the second method. By using 0.0.0.0 wildcard
> you are saying that I want to run OSPF routing process just on that
> particular interface unless if you have a whole range of interface that
> you want to use on the same line then you might want to use the first
> method.
>
> Yes Its a good idea to use router-id under the routing process. Use
> Loopback 0 as your router id's.
>
>
> Thanks,
> Manoj.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Kim Judy
> Sent: Friday, December 09, 2005 4:15 PM
> To: ccielab@groupstudy.com
> Subject: Wildcard issue
>
>
> hi group,
> I have a query that if a interface has an Ip address 172.16.12.1/25 What
> wild card bits should I use under the IGP process ?
>
> router ospf 1
> net 172.16.12.1 0.0.0.127 or
> net 172.16.12.1 0.0.0.0
>
> which is the best way ? What does Cisco expect from us ?
>
> If not specified should I use a "router-id" under each IGP running on a
> router ?
>
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