ACL format to filter ipv6 Mulitcast group ?

AndiSAndiS
in CCIE Routing & Switching Technical


If i want to filter Ipv6 static RP only for specific group, what is the right acl format ?

 

ipv6 pim rp-address <>  <ipv6 group acl>

ipv6 access-list <acl>

   permit ipv6 any host <FF08::xxxx:yyyy>    

 

%Error: Group prefix must be less than 128, skipping   <FF08::xxxx:yyyy> /128

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Comments

  • Narayan.NeupaneNarayan.Neupane ✭

    I also noticed this error first time but if you re-enter ipv6 pim rp-address command, it doesn't return the error:

    See here:

    R1(config)#ipv6 access-list RP1

    R1(config-ipv6-acl)#permit ipv6 any host FF08:00001::01

    R1(config)#ipv6 pim rp-address 2000::1 RP1
    %Error: Group prefix must be less than 128, skipping FF08:1::1/128
    R1(config)#
    R1(config)#ipv6 pim rp-address 2000::1 RP1 -->No error on second time.

    R1(config)#do show run | in ipv6
    ipv6 multicast-routing
    ipv6 pim rp-address 2000::1 RP1
    ipv6 access-list RP1
     permit ipv6 any host FF08:1::1

    Good Luck

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  • AndiSAndiS

    Narayan

    I can enter it on 2nd time but the filter doesn't work. I can ping other multicast group.

    So i'm not sure it's the right filter.

     

     

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  • dcanceriandcancerian ✭✭✭

    I can enter it on 2nd time but the filter doesn't work. I can ping other multicast group.

    Yes its simply does not work, there was a lot of discussion on this in the past with not confirmative solution. Try to figure out some alternative for such tasks.

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