Network & Host Analysis: Network Protocols

“The ability to filter based on the protocols in use over a network gives a window into how it is used. Knowing what good and bad traffic looks like and identifying unencrypted traffic and potential avenues for security compromise is essential. In this course you ll apply various filters to network traffic using Wireshark and explore factors to look out for based on the protocol being examined.
You ll learn to filter DHCP and DNS traffic. You ll differentiate between TCP UDP ICMP and ARP traffic. You ll watch insecure protocols like POP IMAP Telnet and FTP. You ll examine what can be discovered by looking at secure traffic over SSH and HTTPS and secure POP and IMAP variants. Finally you ll examine IPv6 packets.”