[h323implementers] GNU Gatekeeper 4.2 released

Jan Willamowius jan at willamowius.de
Tue May 31 18:11:14 EDT 2016


I'm happy to announce the release of GNU Gatekeeper 4.2.

Version 4.2 is mainly a bug fix release.

A bug in proxying H.239 connections through NAT has been fixes as well
as a number of possible crashes and a few other small bugs.

The main functional change is that GnuGk's old NAT traversal method is
now disabled by default. Everybody should use H.460.x. If you want keep
using the old NAT traversal method, you can re-enable it with



You can download the new version from

Please see the full change log attached below.


Jan Willamowius, Founder of the GNU Gatekeeper Project
EMail  : jan at willamowius.de
Website: http://www.gnugk.org
Support: http://www.willamowius.com/gnugk-support.html

Relaxed Communications GmbH
Frahmredder 91
22393 Hamburg
Geschäftsführer: Jan Willamowius
HRB 125261 (Amtsgericht Hamburg)
USt-IdNr: DE286003584

Changes from 4.1 to 4.2
- BUGFIX(ProxyChannel.cxx) fix H.239 forwarding issue in call where
  only one side uses H.460.19
- BUGFIX(configure.in) make sure LUA test fails for versions below 5.2
- BUGFIX(gkh235.cxx) small fix with password auth
- BUGFIX(ProxyChannel.cxx) apply codec filtering also to
  receiveAndTransmit capabilities
- BUGFIX(ProxyChannel.cxx) fix crash in RTP multiplexing
- BUGFIX(ProxyChannel.cxx) fix crash when using H.245 tunneling
- BUGFIX(gk.cxx) fix shutdown on NetBSD 7
- BUGFIX(ProxyChannel.cxx) fix compile on NetBSD 7
- new switch: [RoutedMode] FilterVideoFastUpdatePicture= to reduce the
  number of update requests from endpoints
- disable SSLv3 when using TLS
- BUGFIX(ProxyChannel.cxx) fix crash in call cleanup
- support ON and OFF event in LuaAcct
- BUGFIX(sqlacct.*) implement ON and OFF event as documented
- new switches [RoutedMode] EnableGnuGkNATTraversal=1 and [Endpoint]
  EnableGnuGkNATTraversal=1 to keep GnuGk's old NAT traversal method

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