EIR Diameter Server

This is an application that I've made in 2011. It's an EIR Diameter Server that implements the EPC/LTE s13 interface towards an SGSN/MME.

It complies with 3GPP 29.272 "Evolved Packet System (EPS); Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) related interfaces based on Diameter protocol", and basically it answers to the ME-Identity-Check-Request with the IMEI Equipment-Status:

->WhiteListed

->GreyListed

->BlackListed

With this application it's possible to define a list of white, grey and black IMEIs (or initial digits of IMEI), in order to test completely the s13 interface.

The Logging option displays the result sent in the last twenty ME-Identity-Check-Answer messages.

This application was done easily in two days, since it uses the Diameter framework already developed for the OCS and PCRF Diameter Server Applications.

I've tested it, with a real MME recently. It works as expected!

The 3GPP-ME-Indentity-Check-Request:

The 3GPP-ME-Identity-Check-Answer: