User Plane Gateway (UPG) based on VPP

A command-line utility program that performs some simple operations on PCAP files (Wireshark/tcpdump traces) very quickly. Allows you to manipulate very large PCAP files that cannot be easily handled with other software like Wireshark (or tshark). Supports filtering encapsulated GTPu frames. Easily extendible.

GTP-U Linux Kernel Module

5G User Plane Function (UPF) based on VPP

A complete subset of SRv6 local function & transit written in XDP

It is just a toy, but it shows the possibility of using xdp to implement 5g upf.

DPDK based GTPv1 gateway

Pure Rust implementation of 3GPP GTP (GPRS Tunneling Protocol) - GTPv1 and GTPv2

GTPU PACKET GENERATOR USING SCAPY

Exploring the Linux APIs for Tun & Tap devices for IP packet tunnelling objective.

Tools for sending GTPU packets with configurable TEID and QFI values.