This Lab06 PCAP of Network Security lecture of Lancaster University

You are using TELNET to Reach the Diffe-Hellman Exchange Server
Server: infosec.waynechiu.cc / 123.0.225.253
Port: 18224

Please use a TELNET client to reach the server.

PuTTY - A SSH/TELNET Client For Windows

If you are running -nix system, install TELNET.

telnet_client.c - A simple TELNET program for Linux/Unix

I need instructions.