PIX supports some basic routing. This includes the use of default routes, static routes, and Routing Information Protocol (RIP). However, routing functionality in a PIX Firewall is minimal. PIX also is unable to reroute packets received on one of its interfaces to another machine located on the same interface. RIP support is limited to PIX's being able to accept route information on its various interfaces. PIX can broadcast a default route only if it is configured to do so via RIP. In addition, PIX cannot propagate the RIP information learned from a network attached to one of its interfaces to a network attached to another of its interfaces. PIX does however support RIPv2's security features.
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