DPI History
Protecting Against Patent Assertion Entities Targeting DPI
1969
ARPANET
The first Internet message is sent over Arpanet
1973
Spectron 600
First protocol analyzer for connection, byte-oriented protocols
1974
TCP/IP
Vint Cerf and Robert Kahn propose the TCP/IP protocol
1976
X.25
The CCITT (now ITU-T) publishes the X.25 connectionless bit-oriented protocol in its Orange Book
1976
Spectron Datascope
Spectron Datascopes decode X.25 packets at bit-level
1985
HP Protocol Analyzer
HP launches 4953A protocol analyzer
1986
Sniffer
Network General introduces the Sniffer Network Analyzer
1988
Tcpdump and libpcap
Developers at Lawrence Berkeley Laboratory develop tcpdump and libpcap
1990
IETF RMON
The IETF launches the RMON network analysis working group
1998
Snort
Martin Roesch launches the Snort intrusion detection and prevention system
2006
Wireshark
Ethereal renamed to Wireshark
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