Telnet Option Codes

• 00: TRANSMIT-BINARY
• 01: ECHO
• 03: SUPPRESS-GO-AHEAD
• 05: STATUS
• 06: TIMING-MARK
• 10: NAOCRD
• 11: NAOHTS
• 12: NAOHTD
• 13: NAOFFD
• 14: NAOVTS
• 15: NAOVTD
• 16: NAOLFD
• 17: EXTEND-ASCII
• 18: LOGOUT
• 19: BM
• 20: DET
• 23: SEND-LOCATION
• 24: TERMINAL-TYPE
• 25: END-OF-RECORD
• 26: TUID
• 27: OUTMRK
• 28: TTYLOC
• 29: 3270-REGIME
• 30: X.3-PAD
• 31: NAWS
• 32: TERMINAL-SPEED
• 33: TOGGLE-FLOW-CONTROL
• 34: LINEMODE
• 35: X-DISPLAY-LOCATION
• 36: ENVIRON
• 37: AUTHENTICATION
• 38: ENCRYPT
• 39: NEW-ENVIRON
• 40: TN3270E
• 42: CHARSET
• 44: COM-PORT-OPTION
• 47: KERMIT

April Fool's:

• 256: RANDOMLY-LOSE
• 257: SUBLIMINAL-MESSAGE

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