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Forum Replies

  1. Hi Rene,

    I think that it is a errata:

    This prefix-list checks the entire 2001::/16 range and permits subnets with a /64 or larger.
    It should be:

    This prefix-list checks the entire 2001::/16 range and permits subnets with a /64 o smaller

    Thanks you

  2. Cisco documentation from 2016 provides different order for outbound filtering:

    For inbound updates the order of preference is:
    route-map
    filter-list
    prefix-list, distribute-list

    For outbound updates the order of preference is:

    filter-list
    route-map | unsuppress-map
    advertise-map (conditional-advertisement)
    prefix-list|distribute-list
    ORF prefix-list (a prefix-list the neighbor sends us)
    

    https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5816-bgpfaq-5816.html

  3. @lagapides thank you for clearing that out. That helped me a lot. Now i have a better understanding.

  4. Hi,

    There is an error in your last configuration on R1.

    hostname R1
    !
    ipv6 unicast-routing
    !
    interface FastEthernet0/0
     ipv6 address 2001:DB8:0:12::1/64
    !
    interface Loopback0
     ipv6 address 2001:DB8:0:1::1/64
    !
    interface Loopback1
     ipv6 address 2001:DB8:0:11::1/64
    !
    interface Loopback2
     ipv6 address 2001:DB8:0:111::1/64
    !
    interface Loopback3
     ipv6 address 2001:DB8:0:1111::1/64
    !
    router bgp 1
     bgp router-id 1.1.1.1
     bgp log-neighbor-changes
     neighbor 2001:DB8:0:12::2 remote-as 2
     !
     address-family ipv4
      neighbor 2001:DB8:0:12::2 activate
      neighbor 2001:DB8:0:12
    ... Continue reading in our forum

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