Re: prefix and acl

Below original question was output from various commands you didn't
bother to look at.

--
Marko Milivojevic - CCIE #18427 (SP R&S)
Senior CCIE Instructor - IPexpert
On Mon, Jun 25, 2012 at 1:01 PM, john matijevic
<john.matijevic_at_gmail.com> wrote:
> Marc,
>
> I will repost original question and please identify in what way I was
> argumentitive or rude.
>
> {
> 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.
> }
>
> Please try and be professional we are here to help not to be rude.
>
>
> Regards,
> John
>
> On 6/25/12, Ronnie Angello <ronnie.angello_at_gmail.com> wrote:
>> Don't mess with Marko! B That's my brother from another mother...
>>
>> http://t.co/ggHcHwFO
>>
>> Sent from my iPhone
>>
>> On Jun 25, 2012, at 11:47 AM, marc abel <marcabel_at_gmail.com> wrote:
>>
>>> Here you are again arguing (and being very rude) to a CCIE again (Marko
>>> is
>>> actually a 2X CCIE). The only reason you find the question vague is
>>> because
>>> you lack the knowledge to understand the question. Marko was taking the
>>> time to try to explain it and more detail to you and you act ungrateful
>>> and
>>> tell him to think before he responds.
>>>
>>> You should probably consider going to a CCNP study group until you have a
>>> stronger foundation to discuss these topics, or at the very least learn
>>> to
>>> be respectful and admit that it is YOU that needs more explanation and to
>>> ask for it nicely.
>>>
>>> -Marc Abel
>>> CCIE #35470
>>>
>>> On Sun, Jun 24, 2012 at 6:50 PM, john matijevic
>>> <john.matijevic_at_gmail.com>wrote:
>>>
>>>> Marko,
>>>>
>>>> Hasse was very vague with his question, since you understood what his
>>>> question is I asked you to state it. Then Hasse responded with
>>>> clarification.
>>>> Please think before you respond.
>>>>
>>>> Regards
>>>> John
>>>>
>>>>
>>>> On 6/24/12, Marko Milivojevic <markom_at_ipexpert.com> wrote:
>>>>> He's asking can he filter a specific prefix using an extended access
>>>>> list, instead of using a prefix list. He gives an example where he
>>>>> tried with a prefix-list and the example where he tried an acl, with
>>>>> obviously different results. Someone very quickly pointed out the
>>>>> difference, with the link to the Cisco's and INE's blog describing the
>>>>> particular use-case. Case closed, moving on. Don't overthink the
>>>>> questions.
>>>>>
>>>>> --
>>>>> Marko Milivojevic - CCIE #18427 (SP R&S)
>>>>> Senior CCIE Instructor - IPexpert
>>>>>
>>>>> On Sun, Jun 24, 2012 at 3:29 PM, john matijevic
>>>>> <john.matijevic_at_gmail.com> wrote:
>>>>>> 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 B  B 223.1.1.0/24 [120/1] via 10.1.12.1, 00:00:19,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>> R B  B 200.1.1.0/24 [120/1] via 10.1.12.1, 00:00:19,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>> R B  B 192.1.1.0/24 [120/1] via 10.1.12.1, 00:00:19,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>> R B  B 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 B  B 223.1.1.0/24 [120/1] via 10.1.12.1, 00:00:07,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>> R B  B 200.1.1.0/24 [120/1] via 10.1.12.1, 00:00:07,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>> B  B 193.1.1.0/25 is subnetted, 1 subnets
>>>>>>>>>>> R B  B  B  193.1.1.0 [120/1] via 10.1.12.1, 00:00:07,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>> R B  B 192.1.1.0/24 [120/1] via 10.1.12.1, 00:00:07,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>> R B  B 195.1.1.0/24 [120/1] via 10.1.12.1, 00:00:07,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>> B  B 194.1.1.0/26 is subnetted, 1 subnets
>>>>>>>>>>> R B  B  B  194.1.1.0 [120/1] via 10.1.12.1, 00:00:07,
>>>>>>>>>>> FastEthernet0/0
>>>>>>>>>>>
>>>>>>>>>>>
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>>>
>>>
>>> --
>>> Marc Abel
>>> CCIE #35470
>>> (Routing and Switching)
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
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