Nokia IP60 - Security Appliance, Руководство пользователя

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Using Static Routes
Chapter 6: Managing Your Network 145
Note:
If the static route's next hop is an Internet connection that is currently
unavailable, the IP60 appliance sends matching traffic through the static route with
the next-lowest metric.
Packets with a source, destination, or network service that do not match any defined static route are routed
to the default gateway. To modify the default gateway, see
Using a LAN Connection on page 78.
When a static route is based on the packet's source, it is called a source route . Source routing can be used,
for example, for load balancing between two Internet connections. For instance, if you have an Accounting
department and a Marketing department, and you want each to use a different Internet connection for
outgoing traffic, you can add a static route specifying that traffic originating from the Accounting
department should be sent via WAN1, and another static route specifying that traffic originating from the
Marketing department should be sent via WAN2.
A static route that is based on the network service used to send the packet is called a service route . Service
routing is useful for directing all traffic of a particular type to a specific Internet connection. For example,
you can choose to route all HTTP traffic to the secondary Internet connection, while routing all other traffic
to the primary Internet connection. Service routes can be defined for network service objects, enabling you
to create routes for custom protocols and port ranges.
The
Static Routes
page lists all existing routes, including the default, and indicates whether each route is
currently "Up" (reachable) or not.
Adding and Editing Static Routes
To add a static route
1. Click
Network
in the main menu, and click the
Routes
tab.
The
Static Routes
page appears, with a list of existing static routes.
2. Do one of the following: