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Sidewinder G2 6.1.1 Administration Guide - Glossary of Technical ...

Sidewinder G2 6.1.1 Administration Guide - Glossary of Technical ...

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RIP with the<br />

<strong>Sidewinder</strong> <strong>G2</strong><br />

using transparent<br />

IP addressing<br />

Figure D-3. RIP with the<br />

<strong>Sidewinder</strong> <strong>G2</strong><br />

RIP with the <strong>Sidewinder</strong> <strong>G2</strong> using transparent IP addressing<br />

Routed on the <strong>Sidewinder</strong> <strong>G2</strong> operates by listening for UDP<br />

broadcasts on port 520. It also sets a timer to send a RIP packet<br />

advertising its routing information every 30 seconds. When a RIP<br />

broadcast is received, the routed server updates the local routing table<br />

with any new routes. When the 30 second timer expires, the routed<br />

server reads and updates its local routing table, and then broadcasts<br />

its local routing information<br />

Important: Through Type Enforcement, no routed is allowed to update the local<br />

route table in a different burb.<br />

The following describes how RIP processing occurs through the<br />

<strong>Sidewinder</strong> <strong>G2</strong>. Figure D-3 illustrates an architecture where the<br />

<strong>Sidewinder</strong> <strong>G2</strong> has been positioned to control IP traffic between the<br />

two company networks. If the <strong>Sidewinder</strong> <strong>G2</strong>s do NOT provide RIP<br />

support, the automatic rerouting <strong>of</strong> traffic through the use <strong>of</strong> dynamic<br />

routing is lost.<br />

Bizco<br />

Network<br />

Telnet server<br />

R<br />

router_a<br />

Internet burb trusted burb<br />

<strong>Sidewinder</strong><strong>G2</strong>_b<br />

R<br />

router_b<br />

Internet burb trusted burb<br />

R<br />

<strong>Sidewinder</strong><strong>G2</strong>_c<br />

router_c<br />

CorpCity<br />

Network<br />

router_d<br />

For this example, Router_a will broadcast UDP RIP packets to<br />

<strong>Sidewinder</strong><strong>G2</strong>_b but they will be dropped. Because the <strong>Sidewinder</strong><br />

<strong>G2</strong> now supports RIP, the <strong>Sidewinder</strong> <strong>G2</strong> can be configured to act as a<br />

router and actively participate in the dynamic RIP processing. In order<br />

to pass data traffic through the <strong>Sidewinder</strong> <strong>G2</strong>, however, some proxy<br />

or server must be configured and enabled.<br />

Configuring Dynamic Routing with RIP D-5<br />

R<br />

Telnet<br />

client

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