can not verify password base on CHAPPassword and CHAPChallenge(not mschapv2)

[bronze1man]

Tested with radius client on switch huawei s5700
I may try to implement it myself.

[denwork]

There has an example for you. I made succeed!
https://github.com/layeh/radius/blob/master/vendors/microsoft/mschapv2-server-example.go

[jamiesun]

Opened #143 to address this. Thanks @bronze1man — it adds rfc2865.CHAPMatch / rfc2865.CHAPVerify (plain CHAP, constant-time, with the CHAP-Challenge → Request-Authenticator fallback per RFC 2865).