Wow. I will most definitely think before responding to your questions
from now on...
-- Marko Milivojevic - CCIE #18427 (SP R&S) Senior CCIE Instructor - IPexpert On Sun, Jun 24, 2012 at 7:50 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 >>>>>>>> B version 2 >>>>>>>> B network 10.0.0.0 >>>>>>>> B distribute-list prefix 1 in FastEthernet0/0 >>>>>>>> B 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 >>>>>>>> B version 2 >>>>>>>> B network 10.0.0.0 >>>>>>>> B distribute-list 1 in FastEthernet0/0 >>>>>>>> B 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 >>>>>>>> >>>>>>>> >>>>>>>> Blogs and organic groups at http://www.ccie.net >>>>>>>> >>>>>>>> >>>>>>>> ______________________________**______________________________** >>>>>>>> ___________ >>>>>>>> Subscription information may be found at: >>>>>>>> http://www.groupstudy.com/**list/CCIELab.html<http://www.groupstudy.com/list/CCIELab.html> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> Blogs and organic groups at http://www.ccie.net >>>>>>> >>>>>>> ______________________________**______________________________** >>>>>>> ___________ >>>>>>> Subscription information may be found at: >>>>>>> http://www.groupstudy.com/** >>>>>>> list/CCIELab.html <http://www.groupstudy.com/list/CCIELab.html> >>>>>> >>>>>> >>>>>> Blogs and organic groups at http://www.ccie.net >>>>>> >>>>>> _______________________________________________________________________ >>>>>> Subscription information may be found at: >>>>>> http://www.groupstudy.com/list/CCIELab.html >>>>> >>>>> >>>>> Blogs and organic groups at http://www.ccie.net >>>>> >>>>> _______________________________________________________________________ >>>>> Subscription information may be found at: >>>>> http://www.groupstudy.com/list/CCIELab.html Blogs and organic groups at http://www.ccie.netReceived on Sun Jun 24 2012 - 19:53:42 ART
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