IPv4 - RIP - Interface Properties - Security Tab

Action

Lists the available security options for RIP for IP. You can set security for how you accept routes and how you announce routes. All of the options on this tab are specific to the security option you selected. To set security for accepting routes, click For incoming routes and configure the security options. Then, to set security for announcing routes, click For outgoing routes and reconfigure the security options.

Accept all routes in the ranges listed

For incoming routes:

Specifies that the router looks at each route entry in an incoming RIP announcement and processes the route only if the route falls between one of the ranges listed.

For outgoing routes:

Specifies that the router includes a route in the outgoing RIP announcement only if the route falls into one of the ranges listed.

From

The IP address for the lower end of the range. For example, if you want to exclude all routes to the private network ID 10.0.0.0, you type 10.0.0.0 in From.

List

For incoming routes:

Lists the route ranges to filter in the incoming RIP announcements.

For outgoing routes:

Lists the route ranges to filter in the outgoing RIP announcements.