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Enabling ipv6 on a cisco router interface

Description : This lab demonstrates the steps required to enable ipv6 on a cisco router interface.


1. Enter into privileged mode on router R1.

2. Enter into global configuration mode.

3. Enter the command "ipv6 unicast-routing" that enables the forwarding of IPv6 unicast datagrams globally on the router.

4. Enter into interface configuration mode and then use the command "ipv6 enable" to enable ipv6 processing on the interface and the command also automatically configures an IPv6 link-local address on the interface.

R1#configure terminal
R1(config)#ipv6 unicast-routing
R1(config)#interface serial 0/0
R1(config-if)#ipv6 enable

Note: To configure a router so that it uses only link local addresses, you only have to give ipv6 enable command. Issuing an ipv6 address command automatically configure link local addresses.

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