Interface options – Fortinet 100A User Manual

Page 150

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01-28007-0068-20041203

Fortinet Inc.

Interface options

Router

Interface options

Figure 61: RIP interface configuration

Interface

The FortiGate interface name.

Send Version

RIP routing messages are UDP packets that use port 520.
Select 1 to configure RIP to send RIP version 1 messages from an

interface.
Select 2 to configure RIP to send RIP version 2 messages from an

interface.
Select Both to configure RIP to send both RIP version 1 and RIP version

2 messages from an interface.
Setting the Send Version here overrides the default RIP version for this

interface.

Receive Version

RIP routing messages are UDP packets that use port 520.
Select 1 to configure RIP to listen for RIP version 1 messages on an

interface.
Select 2 to configure RIP to listen for RIP version 2 messages on an

interface.
Select Both to configure RIP to listen for both RIP version 1 and RIP

version 2 messages on an interface.
Setting the Receive Version here overrides the default RIP version for

this interface.

Split-Horizon

Configure RIP to use either regular or poisoned reverse split horizon on

this interface.
Select Regular to prevent RIP from sending updates for a route back out

the interface from which it received that route.
Select Poisoned reverse to send updates with routes learned on an

interface back out the same interface but with the routes marked as

unreachable.

Authentication

Select the authentication used for RIP version 2 packets sent and

received by this interface. If you select None, no authentication is used. If

you select Text, the authentication key is sent as plain text. If you select

MD5, the authentication key is used to generate an MD5 hash.
Both text mode and MD5 mode only guarantee the authenticity of the

update packet, not the confidentiality of the routing information in the

packet.
In text mode the key is sent in clear text over the network. Text mode is

usually used only to prevent network problems that can occur if an

unwanted or misconfigured router is mistakenly added to the network.

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