Here’s the sample IS-IS dynamic routing configuration in different Cisco platforms. Fig.1 IOS-XR Configure Loopback interface Loopback0 ipv4 address 172.16.2.1 255.255.255.255 ipv6 address fdfe:abcd:ef12:0:172:16:2:1/128 ipv6 enable Configure P2P IP interface Gi0/0/0/0 description Connection to IOS Fa0/0 ipv4 address 172.17.0.1 255.255.255.252 ipv4 verify unicast source reachable-via any ipv4 unreachables disable ipv6 nd suppress-ra ipv6 verify unicast source reachable-via any ipv6 address fdfe:ab12:cd34:a00:1::/127 ipv6 enable ipv6 unreachables disable load-interval 30 dampening interface Gi0/0/0/1 description Connection to NX-OS E1/1 ipv4 address 172.18.0.1…
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