Specify the area address and system ID for an IS-IS routing process. The last byte must be 00.For more information about configuring a NET, see IS-IS Addressing.3 Enter the interface configuration mode.CONFIGURATION modeinterface interfaceEnter the keyword interface then the type of interface and slot/port information:• For a 1-Gigabit Ethernet interface, enter the keyword GigabitEthernet then the slot/portinformation.• For the Loopback interface on the RPM, enter the keyword loopback then a number from 0 to16383.• For a port channel, enter the keywords port-channel then a number.• For a SONET interface, enter the keyword sonet then the slot/port information.• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/portinformation.• For a VLAN, enter the keyword vlan then a number from 1 to 4094.4 Enter an IPv4 Address.INTERFACE modeip address ip-address maskAssign an IP address and mask to the interface.The IP address must be on the same subnet as other IS-IS neighbors, but the IP address does not needto relate to the NET address.5 Enter an IPv6 Address.INTERFACE modeipv6 address ipv6-address mask• ipv6 address: x:x:x:x::x• mask: The prefix length is from 0 to 128.The IPv6 address must be on the same subnet as other IS-IS neighbors, but the IP address does notneed to relate to the NET address.6 Enable IS-IS on the IPv4 interface.ROUTER ISIS modeip router isis [tag]If you configure a tag variable, it must be the same as the tag variable assigned in step 1.7 Enable IS-IS on the IPv6 interface.ROUTER ISIS modeipv6 router isis [tag]If you configure a tag variable, it must be the same as the tag variable assigned in step 1.Intermediate System to Intermediate System 588
