Owner's Manual

596 | Chapter 20. IPv4 Unicast Routing

NETGEAR 8800 User Manual

Figure 62. Routing Between VLANs

Populating the Routing Tables

The switch maintains a set of IP routing tables for both network routes and host routes. Some

routes are determined dynamically from routing protocols, and some routes are manually

entered. When multiple routes are available to a destination, configurable options such as

route priorities, route sharing, and compressed routes are considered when creating and

updating the routing tables. This section presents the following topics:

• Dynamic Routes on page 596

• Static Routes on page 597

• Multiple Routes on page 597

• Relative Route Priorities on page 597

• IP Route Sharing and ECMP on page 598

• Compressed Routes on page 599

Dynamic Routes

Dynamic routes are typically learned by enabling the RIP, OSPF, or BGP protocols, and are

also learned from Internet Control Message Protocol (ICMP) redirects exchanged with other

routers. These routes are called dynamic routes because they are not a permanent part of

the configuration. The routes are learned when the router starts up and are dynamically

updated as the network changes. Older dynamic routes are aged out of the tables when an

update for the network is not received for a period of time, as determined by the routing

protocol.

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EX_07

Finance Personnel

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192.207.36.0192.207.35.0

192.207.36.14

192.207.35.13

192.207.35.11

192.207.36.12

192.207.36.1192.207.35.1