0. 实验文件地址

http://www-net.cs.umass.edu/wireshark-labs/Wireshark_DNS_v7.0.pdf

1. nslookup

2. ipconfig

3. Tracing DNS with Wireshark

3.1 www.ietf.org

3.1.1 Packets Display

3.1.2 Question & Answer

UDP

port: 53

211.67.48.8; yes

type: A. no “answers”.

Three answers.

no

no

3.2 www.mit.edu

3.2.1 Packets Display

3.2.2 Question & Answer

11. port: 53 12. 211.67.48.8 yes 13. type: AAAA; no “answers”

Three answers. Each of these answers contain name, type, class, time to live, data length and CNAME.

3.3 www.aiit.or.kr bitsy.mit.edu

3.3.1 Packets Display

3.3.2 Question & Answer

20. 18.0.72.3; 211.67.48.8 21. type: A. no “answers” 22. Only one “answers”. 23.