ISIS For IPv6 Configuration on Cisco IOS

isis-for-ipv6-topology2

How to Configure ISIS For IPv6 on Cisco?

In this Cisco ISIS for IPv6 configuration example, we will configure ISIS with IPv6 extension configuration commands.

For our example we will use the below four-routered topology. Here, we will have 3 different area. There is a Single Topology and Multi-Topology configurations with ISIS for IPv6. We will give an example to Multi-Topology here.


isis topology ipcisco


You can als learn How to Configure ISIS on Cisco Routers for IPv4.


Let’s start the ISIS for IPv6 configuration.

Firstly, we will enable IPv6 routing on each routers. We will do this with “ipv6 unicast-routing” command.

Router A # config terminal
Router A (config) # ipv6 unicast-routing
Router B # config terminal
Router B (config) # ipv6 unicast-routing
Router C # config terminal
Router C (config) # ipv6 unicast-routing
Router D # config terminal
Router D (config) # ipv6 unicast-routing

Now, IPv6 Routing is enabled on each router. It is time to configure router ISIS process. Here, we will use a name for ISIS process. This name is “ABC”. Beside, we will give NET Addresses to the interface and we will configure the router global level.

By the way, let’s remember the router levels with a shape.

isis-router-types-ipcisco

Router A (config) # router isis ABC
Router A (config-rtr)# net 49.0000.0000.0000.AAAA.00
Router A (config-rtr)# is-type level-2-only
Router B (config) # router isis ABC
Router B (config-rtr)# net 50.0000.0000.0000.BBBB.00
Router B (config-rtr)# is-type level-2-only

Lesson tags: is-is for ipv6, IPv6, routing, ipv6 routing
Back to: CCIE Enterprise Infrastructure > IS-IS

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