Static Routes - Allied Telesis AT-8100L/8 User Manual

Chapter 104: Internet Protocol Version 4 Packet Routing

Static Routes

Static routes are used to route IPv4 packets to networks that are not
directly connected to the switch. Such networks are referred to as remote
networks. Static routes are manually added into the routing table in the
switch and consist of the network addresses of the remote destinations
and the next hops to the destinations.
Before a static route to a remote destination can be added to the switch,
the switch must already have a routing interface on the VLAN where the
next hop of the route is located. Furthermore, the IP addresses of the next
hop of the route and the routing interface in the VLAN must be members of
the same network.
For example, if you want to add a static route that has as its next hop the
IP address 149.122.35.77 and mask 255.255.255.0, the VLAN where the
next hop is located would need a routing interface with an IP address in
the 149.122.35.0 network.
Static routes are available to all of the routing interfaces and VLANs on the
switch. New static routes become functional immediately and are never
deleted from the routing table by the switch, even when they are inactive.
They cannot be disabled. If you do not want the switch to use a static
route, you must delete it from the table.
Static routes also have a parameter for assigning an administrative
distance. The switch uses the administrative distance to select a route
when there is more than one route with the same destination address
prefix. The lower the administrative distance, the higher the route
preference.
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