This is a 3GPP GGSN and PGW implemented in Erlang.

2015-10-30 - this is code very much WiP !!!!

Implmenented messages:

• GTPv1 Create/Update/Delete PDP Context Request on Gn
• GTPv2 Create/Delete Session Request on S2a

• no APN selection
• QoS parameters are hard-coded
• SGSN handover (IP and TEI change) no supported

Using tetrapak:

# tetrapak build check

Using rebar:

# rebar get-deps
# rebar compile

Very experimental:

• edit the APN parameted in gtp:test/0
• run with:

# tetrapak shell
Erlang/OTP 18 [erts-7.0.3] [source] [64-bit] [smp:8:8] [async-threads:10] [kernel-poll:false]

Eshell V7.0.3  (abort with ^G)
1> start().
2> gtp:test().

• connect with SGSN or S-GW