ip address with port number mapping in routing table

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Networking
Hi, All, Is it possible to include the port number in the routing table to map with the domain name. E.g. www10.hello.com ---> 123.123.123.123:80 www30.hello.com ---> 123.123.123.123:8080 Command and suggestion on mapping will be welcomed. Thanks. Cassidy
ASKED: October 7, 2005  7:32 PM
UPDATED: October 9, 2005  2:36 PM

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No. An IP route is a network layer entity. Ports are a transport layer (TCP/UDP) entity. The remapping you’re looking to do can be accomplished by using a proxy or firewall capable of remapping at the transport layer. The implementation of that functionality depends on the platform and without that information it’s impossible to provide you with a complete answer though I’m pretty sure that the Windows built-in firewall is not capable of transport layer remapping and the built-in firewalls for most Linux and *BSD systems can.

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  • Bobkberg
    Just to tack on a minor detail (amigus covered things pretty thoroughly) there are firewall appliances that can also do the job. Checkpoint, Juniper, SonicWall, and others. Bob
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