Package: vtun
Version: 3.0.3-2

Since I have upgraded my vtun server from Wheezy to Jessie, my vtun
clients can't connect to the server via UDP.

- TCP clients can connect,
- Clients upgraded to Jessie can connect via UDP too,
- Non-Jessie clients (Wheezy, or non-Debian clients) can not.

Server log: (alice=client, bob=server)

Jul 14 13:48:48 gateway vtund[16207]: Use SSL-aware challenge/response
Jul 14 13:48:48 gateway vtund[16207]: Session
alice[193.225.174.65:50825] opened
Jul 14 13:48:48 gateway vtund[16207]: UDP connection initialized
Jul 14 13:48:48 gateway vtund[16207]: Connection refused (111)
Jul 14 13:48:48 gateway vtund[16207]: Session alice closed

tcpdump shows:
13:45:08.164850 IP alice > bob: ICMP client udp port 42694 unreachable,
length 36

- Firewall disabled on both ends
- No NAT, both ends have public IP

Thank you in advance.
-- 
Gergely EGERVARY


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