Routing Sources; Configuring The Routing Table - Avaya G450 Manual

Routing sources

The G450 router supports both static and dynamic routing per interface. You can configure
static routes with two levels of priority, high and low, and you can enable and configure Open
Shortest Path First (OSPF) and Routing Information Protocol (RIP) dynamic routing protocols.
Additionally, when DHCP client is configured on an interface, you can configure DHCP client to
request a default router address from the DHCP server (DHCP option 3).
The actual source from which the router learns the next hop for any given interface is
determined as follows: The router seeks the best match to a packet's destination IP address
from all enabled routing sources. If there is no best match, the next hop source is determined
according to the following priority order:
1. High priority static route (highest). If a high priority static route is configured on the
interface, this route overrides all other sources.
2. OSPF. If no high priority static route is configured on the interface, but OSPF is enabled,
then OSPF determines the next hop.
3. RIP. If no high priority static router is configured on a given interface, and OSPF is not
enabled, but RIP is enabled, RIP determines the next hop.
4. EXT OSPF.
5. DHCP. If no high priority static router is configured on a given interface, and neither OSPF
nor RIP are enabled, and DHCP client is configured on the interface with a default router
requested from the DHCP server (DHCP option 3), then the default router provided by
DHCP is used.
6. Low priority static route (lowest).
When more than one next hop is learned from the same source, the router uses an equal cost
multi path algorithm that performs load balancing between routes.
For information about configuring static routes, see
For information about configuring OSPF, see
about configuring RIP, see
DHCP client, see

Configuring the routing table

When you configure the routing table, you can:
View information about the routing table
●
Add entries to the routing table
●
Delete entries from the routing table
●
Configuring RIP
Configuring DHCP client
Configuring the routing table
Configuring OSPF on page 492. For information
on page 486. For information about configuring
on page 199.
Routing sources
on page 451.
Issue 1 January 2008 451