From: Quetta Walla (quetta_1@lycos.com)
Date: Mon May 22 2006 - 01:58:44 ART
why are u using extended acl
to permit any networks with second octet as even: access 11 permit 0.0.0.0 255.254.255.255
for odd: access 11 permit 0.1.0.0 255.254.255.255
you do not need the deny statement at the end. That is the action by default.
> ----- Original Message -----
> From: gigi.ccie@gmail.com
> To: ccielab@groupstudy.com
> Subject: How can I permit or deny even and odd subnets?
> Date: Sun, 21 May 2006 11:56:22 -0400
>
>
> Friends,
>
> How can I permit or deny even or odd subnets? I mean how to know
> when to use one over the other?
>
> If I have a requirement to allow even subnets from 172.16.0.0? Can
> I just permit the evens? Would I be wrong if I denied the odd
> subnets?
>
> I think I would need something like this
>
> access-list 101 permit ip 172.16.0.0 0.0.254.255
> access-list 101 deny any any
>
> or
>
> access-list 101 deny ip 172.16.0.0 0.0.1.255
> access-list 101 permit any any
>
> or
>
> access-list 101 permit ip 172.16.0.0 0.0.254.0
> access-list deny any any
>
> access-list 101 deny ip 172.16.0.0 0.0.1.0
> access-list permit any any
>
> Does this look right?
>
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This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:22 ART