OpenGGSN - Gateway GPRS Support Node
Copyright (C) 2002-2004 Mondru AB, Author: Jens Jakobsen <jj@openggsn.org>
Copyright (C) 2010-2017 Harald Welte <laforge@gnumonks.org>
Copyright (C) 2012-2016 Holger Hans Peter Freyther <zecke@selfish.org>
Copyright (C) 2014-2016 Pablo Neira Ayuso <pablo@gnumonks.org>
Copyright (C) 2014-2016 sysmocom - s.f.m.c. GmbH

Contributors:
Emmanuel Bretelle <chantra@debuntu.org>
Yann BONNAMY <yann_bonnamy@yahoo.fr>
Eric Butler <eric@codebutler.com>
Michael McTernan <mike.mcternan@wavemobile.com>
Alexander Huemer <alexander.huemer@xx.vu>
BJovke <bjovan@gmail.com>
Alexander Couzens <lynxis@fe80.eu>
Ruben Undheim <ruben.undheim@gmail.com>
