Re: prefix and acl

Good Afternoon Marko,

Please enlighten us.

Here is the question:

Can I do this with an acl or extended cal,

Please clarify what this is? I don't understand what he is asking?

Regards,
John
On 6/24/12, Marko Milivojevic <markom_at_ipexpert.com> wrote:
> He did post the config snippets. I think the question was very clear.
> So were the answers :-)
>
> --
> Marko Milivojevic - CCIE #18427 (SP R&S)
> Senior CCIE Instructor - IPexpert
>
> On Sun, Jun 24, 2012 at 12:27 PM, john matijevic
> <john.matijevic_at_gmail.com> wrote:
>> Good Afternoon,
>>
>> "Can I do this with an acl or extended cal, I have a Brain Freeze
>> Thanks."
>>
>> What is this?
>>
>> Very vague, can you please be more specific and describe exactly the
>> issue or problem that you are trying to solve?
>>
>> Please post network diagram and configurations.
>>
>>
>> Regards,
>> John
>>
>>
>> On 6/24/12, Sarad <tosara_at_gmail.com> wrote:
>>> Hi Hasse,
>>>
>>> We can use a extended access-list in BGP to replace a prefix-list, But
>>> in
>>> IGP it appears differently as extended accesslist represent the route
>>> source and subnet (not subnet and subnet mask)
>>>
>>> Have a look at this
>>> http://blog.internetworkexpert.com/2008/01/04/using-extended-access-lists-in-a-distribute-list/
>>>
>>> Cheers
>>> Sara
>>>
>>>
>>>
>>> On Sun, Jun 24, 2012 at 11:12 PM, <daniel.dib_at_reaper.nu> wrote:
>>>
>>>> Hi Hasse,
>>>>
>>>> You are trying to match every class C address with /24 mask right? This
>>>> is
>>>> not possible with a standard ACL. If you used extended ACL you could
>>>> match
>>>> mask like this.
>>>>
>>>> access-list 100 permit 192.0.0.0 31.255.255.255 host 255.255.255.0
>>>>
>>>> However I think this is only supported in BGP.
>>>>
>>>> /Daniel
>>>>
>>>>
>>>> On Sun, 24 Jun 2012 14:02:01 +0200, Hasse wrote:
>>>>
>>>>> Can I do this with an acl or extended cal, I have a Brain Freeze
>>>>> Thanks.
>>>>>
>>>>> R2#show run | sec rip
>>>>> router rip
>>>>> version 2
>>>>> network 10.0.0.0
>>>>> distribute-list prefix 1 in FastEthernet0/0
>>>>> no auto-summary
>>>>>
>>>>> R2#show run | sec prefix-list
>>>>> ip prefix-list 1 seq 5 permit 192.0.0.0/3 ge 24 le 24
>>>>>
>>>>> R2#show ip route rip
>>>>> R 223.1.1.0/24 [120/1] via 10.1.12.1, 00:00:19, FastEthernet0/0
>>>>> R 200.1.1.0/24 [120/1] via 10.1.12.1, 00:00:19, FastEthernet0/0
>>>>> R 192.1.1.0/24 [120/1] via 10.1.12.1, 00:00:19, FastEthernet0/0
>>>>> R 195.1.1.0/24 [120/1] via 10.1.12.1, 00:00:19, FastEthernet0/0
>>>>>
>>>>> if I am using a standard ACL
>>>>>
>>>>>
>>>>> Standard ACL
>>>>> R2#show run | sec rip
>>>>> router rip
>>>>> version 2
>>>>> network 10.0.0.0
>>>>> distribute-list 1 in FastEthernet0/0
>>>>> no auto-summary
>>>>>
>>>>> R2#show run | sec access-list
>>>>> access-list 1 permit 192.0.0.0 31.255.255.0
>>>>>
>>>>> R2#show ip ro rip
>>>>> R 223.1.1.0/24 [120/1] via 10.1.12.1, 00:00:07, FastEthernet0/0
>>>>> R 200.1.1.0/24 [120/1] via 10.1.12.1, 00:00:07, FastEthernet0/0
>>>>> 193.1.1.0/25 is subnetted, 1 subnets
>>>>> R 193.1.1.0 [120/1] via 10.1.12.1, 00:00:07, FastEthernet0/0
>>>>> R 192.1.1.0/24 [120/1] via 10.1.12.1, 00:00:07, FastEthernet0/0
>>>>> R 195.1.1.0/24 [120/1] via 10.1.12.1, 00:00:07, FastEthernet0/0
>>>>> 194.1.1.0/26 is subnetted, 1 subnets
>>>>> R 194.1.1.0 [120/1] via 10.1.12.1, 00:00:07, FastEthernet0/0
>>>>>
>>>>>
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Received on Sun Jun 24 2012 - 15:29:08 ART