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282 Nokia Network Voyager for IPSO 4.0 Reference Guide
Failover of the default router no longer occurs. When you disable a virtual router, you must first
remove the VRRP configuration for that virtual router from all of the backup routers.
You must not delete the virtual router on the default router first, as it stops sending VRRP
advertisements. This results in the backup routers assuming that the default router has failed, and
one of the backup routers automatically adopts the backup address of the default router. This
situation results in two routers having the address of the default router configured.
1. Click VRRP for IPv6 under Configuration > System Configuration > IPv6
Configuration > Router Services in the tree view.
2. Locate the virtual router to remove.
a. To locate a virtual router used to back up the local interface IP addresses, find the correct
virtual ID in the Own VRID field.
b. To local a virtual router used to back up the IP addresses of another router, find the
correct virtual ID in the Router with VRID field.
3. Click off next to the entry for the VRID of the virtual router you want to remove.
4. Click Apply.
All the information about that specific virtual router disappears from the Network Voyager
configuration page.
5. To make your changes permanent, click Save.
Creating a Virtual Router in Monitored Circuit Mode for IPv6
The monitored circuit feature makes the election of the virtual master router dependent on the
current state of the access link. You can select which interfaces on which to associate
dependency and configure a priority delta for each interface you select. The up and down status
of each interface is monitored, and the election of the VRRP master dynamically adapts to the
current state of each interface selected for dependency. For specific information on configuring
specific interfaces on which to associate dependency, see “Setting Interface Dependencies for a
Monitored Circuit Virtual Router for IPv6.”
The IPv6 address associated with a monitored circuit virtual router must not match the actual
IPv6 address of the host or router on the network of the interface. The first address you configure
must be a link-local address.
1. Click VRRP for IPv6 under Configuration > System Configuration > IPv6
Configuration > Router Services in the tree view.
2. To enable Monitored Circuit, click the Monitored Circuit button next to the interface for
which to enable Monitored Circuit, and then click Apply.
3. To specify the virtual router ID for the virtual router to be used to back up the local interface
address(es), enter a value of from 1 to 255 in the Create Virtual Router text box. Click
Apply.
4. (Optional) In the Hello Interval text box, enter a value from 1 to 4095 to specify the interval,
in centiseconds, that is, 1 one-hundredth of a second, between VRRP advertisement
transmissions. This value should be the same on all the routers with this virtual router