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    Monitoring the Current State of IPv6 Routing Tables

    Purpose

    Display the current state of the routing table, including routes not used for forwarding. You can display all routes, a specific route, detailed information about all or a specific route, or summary counters for the routing table.

    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 current state of all routes in the routing table:

    host1#show ipv6 route
             Prefix/Length            Type   Dst/Met         Intf
    -------------------------------- ------- ------- --------------------
    1::/16                           Connect 0/0     loopback1
    5::/64                           Connect 0/0     ATM4/0.15
    6::/64                           Static  1/0     ATM4/0.15
    2003::/16                        Static  1/0     ATM4/0.15

    To display summary information of all routes in the routing table:

    host1#show ipv6 route summary
    Unicast routes:
    8 total routes, 576 bytes in route entries
    0 isis routes
    0 rip routes
    3 static routes
    2 connected routes
    1 bgp routes
    0 ospf routes
    2 other internal routes
    0 access routes
    0 internally created access host routes
    Last route added/deleted: 2::4/128 by BGP
    At MON FEB 04 2008 14:18:25 UTC
    Unicast routes used only for Multicast RPF check:
    0 total routes, 0 bytes in route entries
    0 isis routes
    0 rip routes
    0 staroughtic routes
    0 connected routes
    0 bgp routes
    0 ospf routes
    0 other internal routes
    0 access routes
    0 internally created access host routes
    0 mbgp routes 
    0 dvmrp routes 
    Last route added/deleted: null by Invalid
    At MON FEB 04 2008 14:18:04 UTC
    MPLS tunnel routes (not used for forwarding):
    3 total routes, 216 bytes in route entries
    1 bgp tunnel routes
    1 ldp tunnel routes
    1 rsvp tunnel routes
    Last route added/deleted: 2::4/128 by BGP Tunnel
    At MON FEB 04 2008 14:18:26 UTC

    To display the detailed information about the specific route:

    host1#show ipv6 route 5::/64 detail 
    5::/64 Type: Static Distance: 1 Metric: 0 Tag: 1234 Class: 0
            NextHop: 1::2  IntfIndex 10007 Intf ATM4/0.15

    Meaning

    Table 1 lists the show ipv6 route command output fields.

    Table 1: show ipv6 route Output Fields

    Field Name

    Field Description

    Prefix

    IPv6 address prefix

    Length

    Prefix length

    Type

    Protocol type (possible route types include: Bgp, Connect, Idrp, Igrp, Invalid, Isis, Ndisc, Ospf, Other, Rip, Static)

    Dst (or Distance)

    Administrative distance for the route

    Met (or Metric)

    Number of hops

    Intf

    Interface type and interface specifier

    Tag

    Route tag assigned for the static route

    NextHop

    The configured next hop address for this interface

    IfIndex

    An autogenerated value for the next hop interface

    Published: 2014-08-13