Re: Prefix list vs Access list - same?

Hi Andy,

Can't fault your logic, guv. Haven't tested it though.

cheers,
Dale

On Tue, Jun 2, 2009 at 11:03 PM, Andy Hogard <andyhogard_at_gmail.com> wrote:
> So Dale,
>
> Effectively "ip prefix-list 10 permit 192.168.0.0/24 le 32" ACL equivalent
> would be "access-list 101 permit ip 192.168.0.0 0.0.0.255 255.255.255.0
> 0.0.0.255", init?!
>
> Regards,
> Andy H.
>
> On Tue, Jun 2, 2009 at 5:28 PM, Dale Shaw <dale.shaw_at_gmail.com> wrote:
>>
>> Hi Alexandre,
>>
>> Don't forget this lesser known form using extended IP ACLs:
>>
>> access-list 100 permit 192.168.0.0 0.0.0.255 255.255.255.0 0.0.0.0
>>
>> The same ACE in another form is:
>>
>> access-list 100 permit host 192.168.0.0 host 255.255.255.0
>>
>> I first saw this form in Halabi's "Internet Routing Architectures"
>> book. This allows you to use access-lists to perform exact matches
>> with route filtering.

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Received on Tue Jun 02 2009 - 23:10:58 ART