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

--------

metric

--------

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

20

vr1

88.1.1.1/32

ospf

eth0.121

12.1.1.2

110

20

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

10

vr1

2888:1000::1/128

ospf6

eth0.121

fe80::640e:94ff:fe4d:d0c8

110

10

vr1

2999:1000::1/128

connected

lo




vr1

fe80::/64

connected

eth0.121