ZyXEL Communications ZyXEL ZyWALL USG-1000, User Manual

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Chapter 13 Routing Protocols
ZyWALL USG 2000 User’s Guide
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The following table describes the labels in this screen.
13.3 The OSPF Screen
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.
Table 76 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
Authentication
Key
This field is available if the Authentication is Text. Type the
password for text authentication. The key can consist of alphanumeric
characters and the underscore, and it can be up to 8 characters long.
MD5
Authentication
ID
This field is available if the Authentication is MD5. Type the ID for
MD5 authentication. The ID can be between 1 and 255.
MD5
Authentication
Key
This field is available if the Authentication is MD5. Type the
password for MD5 authentication. The password can consist of
alphanumeric characters and the 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.
Apply Click this button to save your changes to the ZyWALL.
Reset Click this button to return the screen to its last-saved settings.