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My FreeSWITCH install isn responding to any SIP traffic or I see sip traffic when I use TCPDUMP but I still don get a response?

April 26, 2017install Response SIP tcpdump Traffic

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My FreeSWITCH install isn responding to any SIP traffic or I see sip traffic when I use TCPDUMP but I still don get a response?

1 Answer

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This usually happens when you have a firewall enabled. You will still see traffic hitting your machine when you use tcpdump but the sure fire way to make sure the traffic gets through is to turn off iptables i.e.