Re: Match access list ...

From: Mirco Orlandi <mirco.orlandi_at_gmail.com>
Date: Sat, 19 Jun 2010 17:45:23 +0200

There is always an implict deny any at the end. This is IOS.

However, in some case you can choose to be explicit:
- when you want to log denied packets;
- when you want make sure your collegues understand what did you do, without
doubt, when they will read cfg;
- when you are speaking in IOS syntax to define a rule for something else;
- ...

bye.

--
mirco
On Sat, Jun 19, 2010 at 8:45 AM, Taufik Kurniawan <ktaufik_at_gmail.com> wrote:
>
>
> On 18 June 2010 18:44, Mirco Orlandi <mirco.orlandi_at_gmail.com> wrote:
>
>> Hi,
>>
>> Match logic is correct. You forgot only the "explicit permit any" at the
>> end.
>>
>> ip access 1 permit 10.10.15.0 0.0.0.255
>> ip access 1 deny 10.10.1.0 0.0.14.255
>> ip access 1 permit any
>>
>
>
> That one will block net 1,3,5,7,9,11,13 and permit net 15
>
> now
> if i want to give access net 1,3,5,7,9,11,13 and block net 15
>
> will be like
>
> ip access 1 deny 10.10.15.0 0.0.0.255
> ip access 1 permit 10.10.1.0 0.0.14.255
>
> i don't need to last with ip access 1 deny any      as it is already
> explicitly there ? I am right ?
>
>
>
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>>
>> --
>> Mirco
>>
>> Il giorno 18/giu/2010, alle ore 16.03, Taufik Kurniawan <
>> ktaufik_at_gmail.com> ha scritto:
>>
>> Hi,
>> kindly confirm ...
>> 1. I want to deny the traffic from the following networks 10.10.1.0,
>> 10.10.3.0, 10.10.5.0, 10.10.7.0, 10.10.9.0, 10.10.11.0 and 10.10.13.0 with
>> all /24
>>
>> and I am doing this ....
>>
>> ip access 1 permit 10.10.15.0 0.0.0.255
>> ip access 1 deny 10.10.1.0 0.0.14.255
>>
>>
>> please kindly confirm, am i doing right ?
>>
>> thanks
>>
>>
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Received on Sat Jun 19 2010 - 17:45:23 ART

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