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    Monitoring Detailed or Summary Information for IPv6 Addresses

    Purpose

    Display detailed or summary interface information for a particular IPv6 address. You can use the brief keyword to display summary information about the interface for the specified IPv6 address. You can use the detail keyword to display detailed information about the interface for the specified IPv6 address.

    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 interface information for a particular IPv6 address:

    host1#show ipv6 address 5:1:1::2
    FastEthernet9/1.5 line protocol VlanSub is up, ipv6 is up
      Description: IPv6 interface in Virtual Router Hop5
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:31ce
      Internet address: 5:1:1::2/64
      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      ND reachable time is 3600000 milliseconds
      ND duplicate address detection attempts is 100
      ND neighbor solicitation retransmission interval is 1000 milliseconds
      ND proxy is enabled
    ND RA source link layer is advertised
      ND RA interval is 200 seconds, lifetime is 1800 seconds
      ND RA managed flag is disabled, other config flag is disabled
      ND RA advertising prefixes configured on interface
      In Received Packets 12, Bytes 1260
        Unicast Packets 5, Bytes 588
        Multicast Packets 7, Bytes 672
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0
      Out Forwarded Packets 21, Bytes 2352
        Unicast Packets 21, Bytes 2352                                             
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 8, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 8
      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/1.5
        Queue length 0 bytes
        Forwarded packets 4, bytes 680
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0                                        

    To display detailed interface information for a particular IPv6 address:

    host1#show ipv6 address detail 5:1:1::2
    FastEthernet9/1.5 line protocol VlanSub is up, ipv6 is up
      Description: IPv6 interface in Virtual Router Hop5
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:31ce
      Internet address: 5:1:1::2/64
    IPv6 statistics:
      Rcvd:  0 local destination
             0 hdr errors, 0 addr errors
             0 unkn proto, 0 discards
      Sent:  0 generated, 0 no routes, 0 discards
    ICMPv6 statistics:
      Rcvd:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 0 echo requests
             3 echo replies
      Sent:  0 destination unreach, 0 admin unreach, 0 parameter problem
             0 time exceeded, 0 pkt too big, 5 echo requests
             0 echo replies
      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      ND reachable time is 3600000 milliseconds                                    
      ND duplicate address detection attempts is 100
      ND neighbor solicitation retransmission interval is 1000 milliseconds
      ND proxy is enabled
    ND RA source link layer is advertised
      ND RA interval is 200 seconds, lifetime is 1800 seconds
      ND RA managed flag is disabled, other config flag is disabled
      ND RA advertising prefixes configured on interface
      ICMPv6 statistics:
        Rcvd:  12 total, 0 errors
               0 rtr solicits, 7 rtr advertisements
               1 neighbor solicits, 1 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects
        Sent:  31 total, 0 errors
               0 rtr solicits, 16 rtr advertisements
               5 neighbor solicits, 5 neighbor advertisements
               Group membership: 0 queries, 0 responses, 0 reductions
               0 redirects
      In Received Packets 12, Bytes 1260
        Unicast Packets 5, Bytes 588
        Multicast Packets 7, Bytes 672
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0                                                     
      Out Forwarded Packets 22, Bytes 2480
        Unicast Packets 22, Bytes 2480
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 8, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 8
      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/1.5
        Queue length 0 bytes
        Forwarded packets 4, bytes 680
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0 

    Meaning

    Table 1 lists the show ipv6 address command output fields.

    Table 1: show ipv6 address Output Fields

    Field Name

    Field Description

    Description

    Optional description for the interface or address specified

    Network Protocols

    Network protocols configured on this interface

    Link local address

    Local IPv6 address of this interface

    Internet address

    External address of this interface

    IPv6 statistics Rcvd

    • local destination—Frames with this router as their destination
    • hdr errors—Number of packets containing header errors
    • addr errors—Number of packets containing addressing errors
    • unkn proto—Number of packets received containing unknown protocols
    • discards—Number of discarded packets

    IPv6 statistics Sent

    • generated—Number of packets generated
    • no routes—Number of packets that could not be routed
    • discards—Number of packets that could not be routed that were discarded

      Note: If you configure the router to discard packets for static routes with null 0 interfaces as the next-hop points using the reject keyword with the ipv6 route command, the value displayed in this field also includes the packets that reached the null 0 interface and were dropped.

    ICMPv6 statistics Rcvd

    • total—Total number of received packets
    • errors—Error packets received
    • destination unreach—Packets received with destination unreachable
    • admin unreach—Packets received because the destination was administratively unreachable (for example, the packet encountered a firewall filter)
    • parameter problem—Packets received with parameter errors
    • time exceeded—Packets received with time-to-live exceeded
    • pkt too big—Number of packet-too-big messages received that indicate a packet was too large to forward because of the allowed MTU size
    • redirects—Received packet redirects
    • echo requests—Echo request (ping) packets
    • echo replies—Echo replies received
    • rtr solicits—Number of received router solicitations
    • rtr advertisements—Number of received router advertisements
    • neighbor solicits—Number of received neighbor solicitations
    • neighbor advertisements—Number or received neighbor advertisements
    • Group membership (queries, responses, reductions)—Number of queries, responses, and reduction requests received from within a group to which the interface is assigned

    ICMPv6 statistics Sent

    • total—Total number of sent packets
    • errors—Error packets sent
    • destination unreach—Packets sent with destination unreachable

      Note: If you configure the router to discard packets for static routes with null 0 interfaces as the next-hop points using the reject keyword with the ipv6 route command, the value displayed in this field also includes the number of ICMPv6 unreachable messages sent out for packets that reached null 0 interfaces with static routes.

    • admin unreach—Packets sent because the destination was administratively unreachable (for example, due to a firewall filter)
    • parameter problem—Packets sent with parameter errors
    • time exceeded—Packets sent with time-to-live exceeded
    • pkt too big—Number of packet-too-big messages sent because a received packet was too large to forward because of the allowed MTU size
    • redirects—Sent packet redirects
    • echo requests—Echo request (ping) packets
    • echo replies—Echo replies sent
    • rtr solicits—Number of sent router solicitations
    • rtr advertisements—Number of sent router advertisements
    • neighbor solicits—Number of sent neighbor solicitations
    • neighbor advertisements—Number of sent neighbor advertisements
    • Group membership (queries, responses, reductions)—Number of queries, responses, and reduction requests sent to a group of which the interface is assigned

    Operational MTU

    Value of the MTU

    Administrative MTU

    Value of the MTU if it has been administratively overridden using the configuration

    Operational speed

    Speed of the interface

    Administrative speed

    Value of the speed if it has been administratively overridden using the configuration

    Creation type

    Method by which the interface was created (static or dynamic)

    HTTP Redirect Url

    URL to which a subscriber’s initial Web browser session is redirected

    ND reachable time

    Amount of time (in milliseconds) that the neighbor is expected to remain reachable

    ND duplicate address detection attempts

    Number of times that the router attempts to determine a duplicate address

    ND neighbor solicitation retransmission interval

    Interval in which the router retransmits neighbor solicitations

    ND proxy

    Indicates whether the router will reply to solicitations on behalf of a known neighbor

    ND RA source link layer

    Indicates whether the RA includes the link layer

    ND RA interval

    Interval (in seconds) of the neighbor discovery router advertisement

    ND RA lifetime

    Lifetime (in seconds) of the neighbor discovery router advertisement

    ND RA managed flag

    State of the neighbor discovery router advertisement managed flag

    ND RA other config flag

    State of the neighbor discovery router advertisement other config flag

    ND RA advertising prefixes

    Configured advertisement prefixes for neighbor discovery router advertisement

    In Packet Details

    In Received Packets, Bytes

    Total number of packets and bytes received on this interface

    Unicast Packets, Bytes

    Unicast packets and bytes received on the IPv6 interface; link-local received multicast packets (non-multicast-routed frames) are counted as unicast packets

    Multicast Packets, Bytes

    Multicast packets and bytes received on the IPv6 interface which are then multicast-routed are counted as multicast packets

    In Total Dropped Packets, Bytes

    Total number of inbound packets and bytes dropped on this interface

    In Policed Packets

    Packets that were received and dropped on the interface for any of the following reasons: exceeding the token bucket limit, exceeding the rate limit, a drop action in a policy, discarded MAC validation packets, a destination address lookup failure, or when the destination address is an IP interface that has a route configured to the null 0 interface.

    In Invalid Source Address Packets

    Packets received with invalid source address (for example, spoofed packets)

    In Error Packets

    Number of packets received with errors

    In Discarded Packets

    Packets received that were discarded for reasons other than rate limits, errors, and invalid source address

    Out Packet Details

    Out Forwarded Packets, Bytes

    Total number of packets and bytes that were sent from this interface

    Unicast Packets, Bytes

    Unicast packets and bytes that were sent from this interface

    Multicast Routed Packets, Bytes

    Multicast packets and bytes that were sent from this interface

    Out Total Dropped Packets

    Total number of outbound packets and bytes dropped by this interface

    Out Scheduler Dropped Packets, Bytes

    Number of outbound packets and bytes dropped by the scheduler

    Out Policed Packets, Bytes

    Number of outbound packets and bytes dropped because of rate limits

    Out Discarded Packets

    Number of outbound packets that were discarded for reasons other than those dropped by the scheduler and those dropped because of rate limits

    Queue Details

    queue, traffic class, bound to ipv6

    Queue and traffic class bound to the specified IPv6 interface

    Queue length

    Number of bytes in queue

    Dropped committed packets, bytes

    Total number of committed packets and bytes dropped by this interface

    Dropped conformed packets, bytes

    Total number of conformed packets and bytes dropped by this interface

    Dropped exceeded packets, bytes

    Total number of exceeded packets and bytes dropped by this interface

    Published: 2014-08-13