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Date:      Sat, 18 May 2019 19:31:38 +0200
From:      Robert Heron <robert@heron.pl>
To:        freebsd-net@freebsd.org
Subject:   FreeBSD Port: mpd5-5.8_10 - only one client behind NAT can work simultaneously
Message-ID:  <6B8DCAC2-803F-4247-89B1-7D071104630E@heron.pl>

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Hello,

I use mpd5 from ports on FreeBSD 11.2-RELEASE-p10 amd64 and there is one serious problem I can’t solve:  when connecting clients from behind NAT (with the same public IP) to an mpd5 box, every new established connection causes the previous one (from the same source IP) to go dead.  Any IP traffic is stopped through the previous connection but its ng interface still exists. This happens regardless of used cryptography. I’ve tried both  PPTP and L2TP over IPSec PSK (with racoon). When one client connects, it works OK. When any second one from the same public IP connects, then previous IP traffic dies. My firewall is open.
I’ve searched the net, but found no clue :(

--
Robert




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