Further reading

• Ettercap main page—https://linux.die.net/man/8/ettercap
• Etterfilter main page which includes details about scripting syntax—https://linux.die.net/man/8/etterfilter.
• Advanced Wireshark usage guide—https://www.wireshark.org/docs/wsug_html_chunked/ChapterAdvanced.html
• RFC 792
• RFC 793