Chapter 13 Routing Protocols

Figure 154 Network > Routing > RIP

The following table describes the labels in this screen.

Table 71 Network > Routing Protocol > RIP

LABEL

DESCRIPTION

Authentication

 

 

 

Authentication

Select the authentication method used in the RIP network. Choices are: None,

 

Text, and MD5.

 

 

Text

This field is available if the Authentication is Text. Type the password for text

Authentication

authentication. The key can consist of alphanumeric characters and the

Key

underscore, and it can be up to 8 characters long.

 

 

MD5

This field is available if the Authentication is MD5. Type the ID for MD5

Authentication

authentication. The ID can be between 1 and 255.

ID

 

MD5

This field is available if the Authentication is MD5. Type the password for MD5

Authentication

authentication. The password can consist of alphanumeric characters and the

Key

underscore, and it can be up to 16 characters long.

 

 

Redistribute

 

 

 

Active

Select this check box to advertise routes that were learned from the indicated

 

Name.

 

 

Name

This field displays other sources of routing information that the ZyWALL can

 

advertise in the RIP network.

 

 

Metric

Type the cost for routes provided by the indicated source. 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.

 

 

13.3 OSPF Overview

OSPF (Open Shortest Path First, RFC 2328) is a link-state protocol designed to distribute routing information within a group of networks, called an Autonomous System (AS). OSPF offers some advantages over vector-space routing protocols like RIP.

•OSPF supports variable-length subnet masks, which can be set up to use available IP addresses more efficiently.

 

237

ZyWALL USG 300 User’s Guide