Avaya ERS 8600 series, Configuration Manual

Page: 135 / 420

Variable Value
Preference Configures the routing preference of the destination IPv6 address. The
range is 1-255.
The default value is 5.
Creating a static default route
You can statically configure the routing switches with the default route statically, or routing
switches can learn the default route through a dynamic routing protocol (RFC1812).
Important:
You must configure the destination address and subnet mask for the default static route to
0::0.
Procedure steps
1. In the navigation tree, open the following folders: Configuration, IPv6.
2. Double-click
IPv6 .
3. Click the Static Routes tab.
4. Click Insert .
5. In the Dest box, type 0::0.
6. In the PrefixLength box, type 0.
7. In the NextHop box, select the router that leads to the specified route.
8. In the IfIndex box, click Port or VLAN and select an option.
9. Click Insert .
The default route record is created in the static routing table.
Creating a black hole static route
While aggregating or injecting routes to other routers, a router may not use a route to the
aggregated destination, which causes a "black hole." To avoid routing loops, you can configure
a black hole static route to the destination it is advertising. A black hole route is a route with
invalid next hop, so that the switch drops data packets destined to this network.
Important:
To create a black hole static route, the NextHop field must be set to 255.255.255.255.
Creating a static default route
Configuration — IPv6 Routing November 2010 135