nwGTPv2 is free and open source implementation of GPRS Tunneling Protocol version 2 (GTPv2) or Evolved GTP (eGTP). GTPv2 is primarily used for control signalling between Serving Gateway SGW and PDN Gateway (PGW) in Evolved Packet Core (EPC).
nwWimaxAsnCp library is implementation of WiMAX ASN Control Protocol stack as per WiMAX forum specification release 1.0.
WiMAX Base Stations and ASN Gateways make use the protocol for control plane signaling on R4, R6 and R8 interfaces.