ZyXEL Communications USG40 User Manual page 247

• Second, the ZyWALL/USG can also redistribute routing information from non-RIP networks,
specifically OSPF networks and static routes, to the RIP network. Costs might be calculated
differently, however, so you use the Metric field to specify the cost in RIP terms.
• RIP uses UDP port 520.
Use the RIP screen to specify the authentication method and maintain the policies for
redistribution.
Click Configuration > Network > Routing > RIP to open the following screen.
Figure 165 Configuration > Network > Routing > RIP
The following table describes the labels in this screen.
Table 105 Configuration > Network > Routing Protocol > RIP
LABEL DESCRIPTION
Authentication
Authentication Select the authentication method used in the RIP network. This authentication
protects the integrity, but not the confidentiality, of routing updates.
None uses no authentication.
Text uses a plain text password that is sent over the network (not very secure).
MD5 uses an MD5 password and authentication ID (most secure).
Text This field is available if the Authentication is Text. Type the password for text
Authentication Key
authentication. The key can consist of alphanumeric characters and the underscore,
and it can be up to 16 characters long.
MD5 This field is available if the Authentication is MD5. Type the ID for MD5
Authentication ID
authentication. The ID can be between 1 and 255.
MD5 This field is available if the Authentication is MD5. Type the password for MD5
Authentication Key
authentication. The password can consist of alphanumeric characters and the
underscore, and it can be up to 16 characters long.
Redistribute
Active OSPF Select this to use RIP to advertise routes that were learned through OSPF.
Metric Type the cost for routes provided by OSPF. The metric represents the "cost" of
transmission for routing purposes. RIP routing uses hop count as the measurement
of cost, with 1 usually used for directly connected networks. The number does not
have to be precise, but it must be between 0 and 16. In practice, 2 or 3 is usually
used.
Chapter 9 Routing
ZyWALL/USG Series User's Guide
247