Is it possible to get packet id in pre-proxy section?

[魏景鹏]

Helo guys,

One side auth with pap method, but the other side needs chap auth
method, so I have to do some translating work.

chap-string = Packet-Id + Cleartext-Password + authenticator

chap-password = packet-id + md5(chap-string)

Is it possible to get packet id in pre-proxy section?

how can i pack packet-id & authenticator into chap-string?

Any ideas welcomed.

many thx