The Network Lab course offers practical training in designing, simulating, and analyzing network topologies with tools like Netkit and KATHARA. It covers the TCP/IP stack, including port, IP, and physical addressing, along with ARP, ICMP, default gateways, and masking.

Students learn to create subnet designs, observe broadcast and collision domains, and emulate SNAT and DNAT configurations using Linux command-line utilities. The course includes configuring, testing, and analyzing services like Telnet, FTP, SSH, SFTP, DHCP, and DNS, supported by protocol analysis through Wireshark and Tcpdump.

Dynamic and static routing are explored, with a focus on link failures and result optimization using AWK, SED, Xgraph, and GNUPlot. Students write UDP and TCP client-server programs in C, comparing their performance with standard protocols