IPv6 Support for vRouter Loopback Addresses


Netvisor One now supports IPv4 and IPv6 addresses on the same loopback interface.


When you configure a loopback interface, you can optionally associate a vRouter interface to the configuration. If you do not associate a vRouter interface, Netvisor One selects the first non-VRRP vRouter interface. Netvisor One uses the loopback interface for a vRouter as a host route in the Forwarding Information Database (FIB) for packets received from any port and routes them to the correct vRouter.


If there is no vRouter interface configured, the loopback interface is unreachable on the network. When you add the first vRouter interface, the loopback interface is reachable.


If you remove the associated vRouter interface, Netvisor One selects the next available vRouter interface.


Netvisor One does not support multiple vRouter loopback interfaces for IPv6 addresses.


To add an IPv4 address to a loopback interface for vRouter, vr1, use the following syntax:


CLI (network-admin@Leaf1) > vrouter-loopback-interface-add vrouter-name vr1 ip 99.1.1.1

 

To add an IPv6 vRouter loopback interface to vRouter, vr1, use the following syntax:


CLI (network-admin@Leaf1) > vrouter-loopback-interface-add vrouter-name vr1 ip 2999:1000::1

 

To display the vRouter loopback interface, use the vrouter-loopback-interface-show command:


CLI (network-admin@Leaf1) > vrouter-loopback-interface-show


vrouter-name     index ip           router-if

174 ------------ ----- ------------ ---------

175 vr1          1     99.1.1.1     eth0.100

176 vr1          2     2999:1000::1 eth0.100

 

CLI (network-admin@Leaf1) > vrouter-routes-show


vrouter-name network           type       interface next-hop                  distance

------------ ----------------  ---------  --------- ------------------------- --------

vr1          10.1.1.0/24       connected  eth0.100

vr1          10.1.1.0/24       connected  eth0.100

vr1          20.1.1.0/24       ospf       eth0.121  12.1.1.2                  110

vr1          88.1.1.1/32       ospf       eth0.121  12.1.1.2                  110

vr1          99.1.1.1/32       connected  lo                                                  

vr1          2100:100::/64     connected  eth0.100                                            

vr1          2121:100::/64     connected  eth0.121                                            

vr1          2200:100::/64     ospf6      eth0.121  fe80::640e:94ff:fe4d:d0c8 110

vr1          2888:1000::1/128  ospf6      eth0.121  fe80::640e:94ff:fe4d:d0c8 110

vr1          2999:1000::1/128  connected  lo                                                  

vr1          fe80::/64         connected  eth0.121

 

metric

------

 

 

20

20

 

 

 

10

10