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HOW TO: Preserve the Source Port Number When Passing Through the Digi TransPort Router


By default source port numbers are randomly assigned by the router.  Certain applications require that the source port number remain unchanged.  The following firewall rules example will allow preservation of the source port:

Be sure to activate the firewall on the applicable interfaces (i.e. PPP1).
Last updated: Mar 19, 2019

Filed Under

Cellular/Transport

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