GNU Gatekeeper 3.0

This release has is a major update providing IPv6 support and amoung other things greatly improved NAT/firewall traversal.

Source code and executables can be downloaded from

Executables are available for

  • Linux (32 bit and 64 bit)
  • Windows (XP, Vista, Windows7, ...)
  • FreeBSD
  • OpenBSD
  • NetBSD
  • Solaris 11 (x86)
  • MacOS X (x86 and PPC)

Whats new in GnuGk 3.0 ?

New features:

  • full IPv6 support (incl. IPv4-IPv6 proxying)
  • full traversal zone support (gatekeeper-to-gatekeeper H.460.18 / H.460.19)
  • RTP multiplexing (all calls to and from devices supporting H.460.19 will only use 2 sockets total)
  • improved H.235 password authentication with neighbors
  • notifications when GnuGk opens listen ports
  • rewrite destination IPs into aliases
  • ENUM, SRV and RDS routing policies extended for LRQs, in case the calling gatekeeper isn't able to do this
  • massive performance improvement when (re-)loading large numbers of GW rewrites
  • interop fixes for Polycom m100 and Sorenson endpoints
  • fixes in the underlying libraries so *BSD systems can get the latest GnuGk features

Compiling the GnuGk Source Code

Please see the notes on how to compile the gatekeeper.

Last updated: 24. Oct 2016
Page maintained by Jan Willamowius