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IPv6 HSRP UNA/OOD/TEN/INIT

michelbijnsdorp
Level 1
Level 1

I just getting to working with IPv6 HSRP and I was wondering what the following tags are meaning under the IPV6 VLAN interface on the neighbor which is not holding the active HSRP mode ?

Virtual link-local address(es):

  FE80::5:73FF:FEA0:33 [UNA/OOD/TEN/INIT]

Thanks in advance,

Michel

1 Accepted Solution

Accepted Solutions

Jay Welty
Level 1
Level 1

I had the same question - and this is from the Cisco docs,,,

The show ipv6 interface command displays information about attributes that may be associated with an IPv6 address assigned to the interface.

Attribute

Description

ANY

Anycast.   The address is an anycast address, as specified when configured using the ipv6   address command.

CAL

Calendar.   The address is timed and has valid and preferred lifetimes.

DEP

Deprecated.   The timed address is deprecated.

DUP

Duplicate.   The address is a duplicate, as determined by duplicate address detection   (DAD). To re-attampt DAD, the user must use the shutdown or no   shutdowncommand on the interface.

EUI

EUI-64   based. The address was generated using EUI-64.

OFF

Offlink.   The address is offlink.

OOD

Overly   optimistic DAD. DAD will not be performed for this address. This attribute   applies to virtual addresses.

PRE

Preferred.   The timed address is preferred.

TEN

Tentative.   The address is in a tentative state per DAD.

UNA

Unactivated.   The virtual address is not active and is in a standby state.

VIRT

Virtual.   The address is virtual and is managed by HSRP, VRRP, or GLBP.

show ipv6 interface Field Descriptions

Field

Description

Ethernet0/0 is up, line protocol is up

Indicates whether the interface hardware is active (whether line signal is present) and whether it has been taken down by an administrator. If the interface hardware is usable, the interface is marked "up." For an interface to be usable, both the interface hardware and line protocol must be up.

line protocol is up, down (down is not shown in sample output)

Indicates whether the software processes that handle the line protocol consider the line usable (that is, whether keepalives are successful or IPv6 CP has been negotiated). If the interface can provide two-way communication, the line protocol is marked up. For an interface to be usable, both the interface hardware and line protocol must be up.

IPv6 is enabled, stalled, disabled (stalled and disabled are not shown in sample output)

Indicates that IPv6 is enabled, stalled, or disabled on the interface. If IPv6 is enabled, the interface is marked "enabled." If duplicate address detection processing identified the link-local address of the interface as being a duplicate address, the processing of IPv6 packets is disabled on the interface and the interface is marked "stalled." If IPv6 is not enabled, the interface is marked "disabled."

link-local address

Displays the link-local address assigned to the interface.

Global unicast address(es):

Displays the global unicast addresses assigned to the interface.

Joined group address(es):

Indicates the multicast groups to which this interface belongs.

MTU

Maximum transmission unit of the interface.

ICMP error messages

Specifies the minimum interval (in milliseconds) between error messages sent on this interface.

ICMP redirects

The state of Internet Control Message Protocol (ICMP) IPv6 redirect messages on the interface (the sending of the messages is enabled or disabled).

ND DAD

The state of duplicate address detection on the interface (enabled or disabled).

number of DAD attempts:

Number of consecutive neighbor solicitation messages that are sent on the interface while duplicate address detection is performed.

ND reachable time

Displays the neighbor discovery reachable time (in milliseconds) assigned to this interface.

ND advertised reachable time

Displays the neighbor discovery reachable time (in milliseconds) advertised on this interface.

ND advertised retransmit interval

Displays the neighbor discovery retransmit interval (in milliseconds) advertised on this interface.

ND router advertisements

Specifies the interval (in seconds) for neighbor discovery router advertisements (RAs) sent on this interface and the amount of time before the advertisements expire.

As of Cisco IOS Release 12.4(2)T, this field displays the default router preference (DRP) value sent by this device on this interface.

ND advertised default router preference is Medium

The DRP for the device on a specific interface.

View solution in original post

4 Replies 4

Deepak Ambotkar
Level 1
Level 1

What device/version is this? We need more details please. Also can you put configuration for the HSRP interface and complete output for "show standby"?

Regards,

Deepu

here you go:

LAB02#sh ipv6 int vl 5

Vlan5 is up, line protocol is up

  IPv6 is enabled, link-local address is FE80::219:6FF:FE55:8EC2 [UNA]

  Virtual link-local address(es):

    FE80::5:73FF:FEA0:33 [UNA/OOD/INIT]

  Description: EU-Region-2

  Global unicast address(es):

    2001:888:1F31:2205::2, subnet is 2001:888:1F31:2205::/64

  Joined group address(es):

    FF02::1

    FF02::2

    FF02::5

    FF02::6

    FF02::66

    FF02::1:2

    FF02::1:FF00:2

    FF02::1:FF55:8EC2

  MTU is 1500 bytes

  ICMP error messages limited to one every 100 milliseconds

  ICMP redirects are enabled

  ICMP unreachables are sent

  Output features: Check hwidb

  ND DAD is enabled, number of DAD attempts: 1

  ND reachable time is 30000 milliseconds (using 30000)

  ND advertised reachable time is 0 (unspecified)

  ND advertised retransmit interval is 0 (unspecified)

  ND router advertisements are sent every 200 seconds

  ND router advertisements live for 1800 seconds

  ND advertised default router preference is High

  Hosts use DHCP to obtain routable addresses.

  Hosts use DHCP to obtain other configuration.

Vlan5 - Group 51 (version 2)

  State is Standby

    1 state change, last state change 3w5d

  Virtual IP address is FE80::5:73FF:FEA0:33

  Active virtual MAC address is 0005.73a0.0033

    Local virtual MAC address is 0005.73a0.0033 (v2 IPv6 default)

  Hello time 300 msec, hold time 900 msec

    Next hello sent in 0.128 secs

  Preemption disabled

  Active router is FE80::223:ABFF:FE67:52C5, priority 120 (expires in 0.944 sec)

    MAC address is 0023.ab67.52c5

  Standby router is local

  Priority 100 (default 100)

  Group name is "IPV6-group1" (cfgd)

just a c3560 with (C3560-IPSERVICESK9-M), Version 12.2(55)SE1,

Jay Welty
Level 1
Level 1

I had the same question - and this is from the Cisco docs,,,

The show ipv6 interface command displays information about attributes that may be associated with an IPv6 address assigned to the interface.

Attribute

Description

ANY

Anycast.   The address is an anycast address, as specified when configured using the ipv6   address command.

CAL

Calendar.   The address is timed and has valid and preferred lifetimes.

DEP

Deprecated.   The timed address is deprecated.

DUP

Duplicate.   The address is a duplicate, as determined by duplicate address detection   (DAD). To re-attampt DAD, the user must use the shutdown or no   shutdowncommand on the interface.

EUI

EUI-64   based. The address was generated using EUI-64.

OFF

Offlink.   The address is offlink.

OOD

Overly   optimistic DAD. DAD will not be performed for this address. This attribute   applies to virtual addresses.

PRE

Preferred.   The timed address is preferred.

TEN

Tentative.   The address is in a tentative state per DAD.

UNA

Unactivated.   The virtual address is not active and is in a standby state.

VIRT

Virtual.   The address is virtual and is managed by HSRP, VRRP, or GLBP.

show ipv6 interface Field Descriptions

Field

Description

Ethernet0/0 is up, line protocol is up

Indicates whether the interface hardware is active (whether line signal is present) and whether it has been taken down by an administrator. If the interface hardware is usable, the interface is marked "up." For an interface to be usable, both the interface hardware and line protocol must be up.

line protocol is up, down (down is not shown in sample output)

Indicates whether the software processes that handle the line protocol consider the line usable (that is, whether keepalives are successful or IPv6 CP has been negotiated). If the interface can provide two-way communication, the line protocol is marked up. For an interface to be usable, both the interface hardware and line protocol must be up.

IPv6 is enabled, stalled, disabled (stalled and disabled are not shown in sample output)

Indicates that IPv6 is enabled, stalled, or disabled on the interface. If IPv6 is enabled, the interface is marked "enabled." If duplicate address detection processing identified the link-local address of the interface as being a duplicate address, the processing of IPv6 packets is disabled on the interface and the interface is marked "stalled." If IPv6 is not enabled, the interface is marked "disabled."

link-local address

Displays the link-local address assigned to the interface.

Global unicast address(es):

Displays the global unicast addresses assigned to the interface.

Joined group address(es):

Indicates the multicast groups to which this interface belongs.

MTU

Maximum transmission unit of the interface.

ICMP error messages

Specifies the minimum interval (in milliseconds) between error messages sent on this interface.

ICMP redirects

The state of Internet Control Message Protocol (ICMP) IPv6 redirect messages on the interface (the sending of the messages is enabled or disabled).

ND DAD

The state of duplicate address detection on the interface (enabled or disabled).

number of DAD attempts:

Number of consecutive neighbor solicitation messages that are sent on the interface while duplicate address detection is performed.

ND reachable time

Displays the neighbor discovery reachable time (in milliseconds) assigned to this interface.

ND advertised reachable time

Displays the neighbor discovery reachable time (in milliseconds) advertised on this interface.

ND advertised retransmit interval

Displays the neighbor discovery retransmit interval (in milliseconds) advertised on this interface.

ND router advertisements

Specifies the interval (in seconds) for neighbor discovery router advertisements (RAs) sent on this interface and the amount of time before the advertisements expire.

As of Cisco IOS Release 12.4(2)T, this field displays the default router preference (DRP) value sent by this device on this interface.

ND advertised default router preference is Medium

The DRP for the device on a specific interface.

thanks for the reply. at the time I could not found the answer in the CCO docs.

Kind regards, Michel

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