PPP Challenge Handshake Authentication Protocol (CHAP)

PPP CHAP defines a method for Authentication using PPP, which uses a random Challenge, with a cryptographically hashed Response which depends upon the Challenge and a secret key.

Protocol dependencies

  • LCP: Typically, the use of CHAP will be negociated through the use of the PPP Link Control Protocol (LCP)


The PPP CHAP dissector is fully functional.

Preference Settings

There are no preference settings currently for PPP CHAP

Display Filter

A complete list of PPP CHAP display filter fields can be found in the display filter reference

Show only the PPP CHAP based traffic:


Capture Filter

You cannot directly filter the PPP CHAP protocol while capturing.

External links

  • RFC 1994 PPP Challenge Handshake Authentication Protocol (CHAP)


Imported from https://wiki.wireshark.org/CHAP on 2020-08-11 23:12:13 UTC