Summary of message protocol problems

Question 1 ： How to download the corresponding pcap Package sample ？

You can get it from (IP、TCP、UDP、ICMP、IPv6、ICMPv6、ESP、SIP、RTP、HTTP、HTTPS、L2TP、FTP...)：

wiki.wireshark.orghttps://wiki.wireshark.org/SampleCaptures/

https://www.netresec.com/?page=PcapFileshttps://www.netresec.com/?page=PcapFiles

Packet Captures - PacketLife.nethttp://packetlife.net/captures/

Question two ： How to view the message format corresponding to the protocol ？

The message format can be determined by viewing the protocol map .

www.023wg.comhttp://www.023wg.com/message/message/cd_feature_cover.html