From: Kent (cciecn@xxxxxxxxx)
Date: Sun Aug 27 2000 - 20:20:55 GMT-3
Mine looks like this:
101 deny ip 128.0.0.0 63.254.255.255 0.0.0.0
255.254.0.0
101 deny ip 192.0.1.0 31.255.254.255 255.255.255.128
0.0.0.127
101 permit any
I assume that 135.120.0.0 is a even class B and
192.168.1.0 is odd class C.
Thanks
Kent
--- Aaron DuShey <aaron.dushey@dushey-consulting.com>
wrote:
> access-list 101 deny ip 129.0.0.0 0.254.255.255
> host 255.255.0.0
> access-list 101 deny ip 192.168.1.0 0.0.254.255
> host 255.255.255.0
>
> 1st statement-Deny even numbered class B matching
> last bit in 2nd octet as
> even-host 255.255.0.0 matches class B
> 2nd statement-Deny odd(1) numbers class c(host
> 255.255.255.0)
>
> Yes no?
> good challenge
>
> Aaron DuShey
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> Simon Baxter
> Sent: Saturday, August 26, 2000 5:51 PM
> To: CCIE Group Study (E-mail)
> Subject: An access-list challenge
>
>
> For anybody up to it..
>
> not too nasty..
>
> RTRA
> router bgp 100
> distribute-list 101 in
>
>
> create access-list 101 so that RTRA doesn't accept
> even numbered class B
> routes with a mask <16 bits or odd numbered class C
> routes with a mask >24
> bits.
>
>
>
> I hope it didn't take you as long as it did me!!
>
>
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