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multicast routing protocols, you must edit an existing entry (as described in the following
section) and press the Advanced button for RIP or DVMRP.
Modifying an IP Interface
To modify an IP interface, click on the edit icon ( ) for the required entry, update the
interface settings in the dialog box at the bottom of the screen, use the Advanced button
to configure the unicast and multicast routing protocols (as described in the following
sections), and then press Save.
Configuring RIP
The Routing Information Protocol is used to specify how routers exchange routing table
information. (See “RIP and RIP-2 Dynamic Routing Protocols” on chapter 4.) When RIP
is enabled on this routing switch, it broadcasts RIP messages to all devices in the
network every 30 seconds, and updates its own routing table when RIP messages are
received from other routers. RIP messages contain both the IP address and a metric for
each destination network it knows about, and the metric indicates the number of hops
from this device to the destination network.
You can use the following menu to specify authentication, the protocol used for sending
or receiving routing messages on this port, the default metric used in calculating the
best path, and enable or disable Poison Reverse.
Parameter Description
Authentication
Type
Authentication can be used to ensure that routing information comes
from a valid source.
Authentication
Key
A simple password must be provided if authentication is enabled. (An
authentication string is case sensitive, and can be up to 16
characters.)