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    Monitoring the Status of IPv6 Static Routes in the Routing Table

    Purpose

    Display the status of static routes in the routing table. You can specify an IPv6 mask that filters specific routes.

    Note:

    • You must configure an IPv6 license using the license ipv6 command before using the IPv6 routing protocol configuration commands on the E Series router.
    • All IPv6 routing protocol-related configurations are removed from the virtual router when you issue the no ipv6 command.

    Action

    To display the status of static routes in the routing table:

    host1# show ipv6 static
     Prefix/Length   NextHop   Dst/Met     Tag       Interface      Verify       ICMP Unreach
    -------------- ---------- ---------- --------- ------------- -------------- ----------------
    6::/64           5::2       1/0         0          ATM4/0.15   
    2003::/16        5::1       1/0         0          ATM4/0.15    
    2:1::/64          ::        1/0         0          null0                       reject
    3:1::/64          ::        1/0         0          null0                       discard
    55::/55         44::44      1/0       1234       Unresolved 
    3ffe::/32     2222::1       1/0          1       Unresolved        BFD up
    
    

    Meaning

    Table 1 lists the show ipv6 static command output fields.

    Table 1: show ipv6 static Output Fields

    Field Name

    Field Description

    Prefix

    IPv6 address prefix

    Length

    Prefix length

    Next Hop

    IPv6 address of the next hop

    Dst

    Administrative distance of the route

    Met

    Number of hops

    tag

    Route tag for IPv6 static route

    Interface

    Interface type and interface specifier

    Verify

    Status of the BFD operation associated with the specified static route; this field is left empty if the verify bfd-liveness-detection keyword is not specified as part of the ipv6 route command. The display can include the following:

    • BFD up/down—Current status of the associated BFD operation

    ICMP Unreach

    Indicates whether the transmission of ICMPv6 unreachable messages to the originator is enabled for packets that are discarded from processing on each interface configured with a static route:

    • reject—ICMPv6 unreachable messages are sent to the originator for packets that are received on the static route configured on the interface and are dropped from processing (reject keyword is specified with the ipv6 route command)
    • discard—ICMPv6 unreachable messages are not sent to the originator for packets that are received on the static route configured on the interface and are dropped from processing (discard keyword is specified with the ipv6 route command or the default mode of the ipv6 route command is in effect)

    Published: 2014-08-13