NAT Traversal Issue

Discussion in 'Tomato Firmware' started by ravitanra, Oct 17, 2010.

  1. ravitanra

    ravitanra Networkin' Nut Member

    We are running Tomato Firmware v1.28.1816 and facing issue with UDP NAT traversal.

    One of our software sends UDP packets to our server which is on public network. On receiving the request, server sends the response back immediately which we never receive unless the port is opened using port mapping. This should not happened because NAT should have opened the port automatically when the request was sent. This is happening with Tomato firmware only - everything works fine if DDWRT based router is used.

    NAT loopback has been set to All.

    Please help.

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