Can you filter IPv6 traffic on Cisco 6500 interfaces?

Posted on 2014-08-13
Last Modified: 2015-05-20
Is it possible to filter or block IPv6 traffic on interfaces?  Looking to block all IPv6 traffic on all ports of a Cisco 6500 Core router running Version 15.0.
Question by:haselld
    LVL 3

    Expert Comment

    configure terminal
    ipv6 access-list access-list-name
    deny protocol {source-ipv6-prefix/prefix-length | any | host source-ipv6-address} [operator [port-number]] destination-ipv6-prefix/ prefix-length | any | host destination-ipv6-address}

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    LVL 9

    Accepted Solution

    try this

     IPv6 Example

    The IPv6 access-list must be applied as an extended, named access-list.

        !--- Configure the access-list.

        ipv6 access-list iacl

        !--- Deny your space as source from entering your AS.
        !--- Deploy only at the AS edge.

         deny ipv6 YOUR_CIDR_BLOCK_IPV6 any

        !--- Permit multiprotocol BGP.

         permit tcp host bgp_peer_ipv6 host router_ipv6 eq bgp
         permit tcp host bgp_peer_ipv6 eq bgp host router_ipv6

        !--- Deny access to internal infrastructure addresses.

        !--- Permit transit traffic.

         permit ipv6 any any

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