What is EIGRPv6 Passive Interface ? Configuration example

By | 9th November 2015

You can use the EIGRPv6 passive-interface command to control the advertisement of routing information.

The command enables the to stop routing updates over some interfaces while it allows updates to be exchanged normally over other interfaces.

How to Configure EIGRP Passive Interface.

We use the topology below as example.

EIGRPv6 Passive Interface.

HQ(config)# ipv6 router eigrp 22

HQ(config-rtr)# passive-interface g0/0

HQ(config-rtr)# passive-interface g0/1

The configuration  above enable the router to stop the exchange of hello packets between routers which will result in the loss of a neighbor relationship.

Therefore, it is only used on interfaces where no routers are connected.

This stops not only routing updates from being advertised, but it also suppresses incoming routing updates.

Use the show ipv6 protocols command to verify your configuration.

HQ#show ipv6 protocols

               !!!

IPv6 Routing Protocol is “ND”

IPv6 Routing Protocol is “connected”

IPv6 Routing Protocol is “eigrp 22”

EIGRP-IPv6 Protocol for AS(22)

  Metric weight K1=1, K2=0, K3=1, K4=0, K5=0

  NSF-aware route hold timer is 240

  Router-ID: 1.1.1.1

  Topology : 0 (base)

    Active Timer: 3 min

    Distance: internal 90 external 170

    Maximum path: 16

    Maximum hopcount 22

    Maximum metric variance 1

  Interfaces:

    Serial0/0/0

    GigabitEthernet0/0 (passive)

    GigabitEthernet0/1 (passive)

     Redistribution:

    None

HQ#

RIPng.

IPv6 ACLs

OSPFv3

IPv4 EIGRP

Host Standby Router Redundancy Protocol (HSRP)

Virtual Router Redundancy Protocol (VRRP)

Gateway Load Balancing Protocol (GLBP)

Spanning Tree Protocol (STP)

VLAN Trunking Protocol (VTP)

IPv6 Exolained

EIGRPv6

RIPv6 or RIPng

OSPFv3

DHCPv6

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