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What is IP Strict Source Route Option?



Article ID: KB4729 KB Last Updated: 07 Jun 2010Version: 3.0
What is IP Strict Source Route Option?


Note: This article applies to ScreenOS 4.0 and higher.

The NetScreen device blocks packets where the IP option is 9 (Strict Source Routing). This option provides a means for the source of a packet to supply routing information to be used by the gateways in forwarding the packet to the destination. This option is a strict source route because the gateway or host IP must send the datagram directly to the next address in the source route, and only through the directly connected network indicated in the next address to reach the next gateway or host specified in the route.

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