FortGuard provides the most reliable and fastest DDoS protection.
UDP Test Tool is both a UDP packet generator and listening application.
Art of Ping
PingFu UDP transmits UDP packets encapsulated in the TCP communication protocol.
It is the missing link between devices that speak UDP on your network.
The UDP Win Chat can be used as a P2P chat on UDP protocol.
It allows the gateway to establish DDE communication to DX Keeper.
Here's a program that works through DLL Injection for SAMP 0.2.5.
VirtualCOM-UDP is a software based UDP/COM Port Redirector solution.
Fast and reliable mail server. Lots of features against spam DDoS.
F-Key Solutions, Inc.
Robust and secure SMTP/POP3 server. Lots of features against spam and DDoS.
Global Web Monitor
Scans about 400 ports a second. It supports both the TCP/IP and UDP protocols. Select address range....
Binary Visions Inc
Allows you to capture network traffic for TCP, UDP or ICMP protocols.
Active Ports monitors all open TCP and UDP ports on a local computer.
Monitor open TCP and UDP ports and applications that open them on your PC.
Chat with friends using a pop-up style LAN Messenger based on TCP/IP(UDP).
Establish an encrypted, compressed “tunnel” for TCP/IP or UDP data transfer.