Telnet client

[Riki Hendriana]

Dear All,

I am trying to develop a telnet client application, it's working right to
Unix machines without Kerberos authentication, but when I connect to
Linux Server, it sends Kerberos 5 authentication in this detail:
 
FF FD 25	(IAC DO Auth ---the server wants authentication)
FF FA 25 1 2 6 2 2 2 0 FF F0 (IAC SB Auth .....---detail authentication)

for the reply from the telnet client I should send in these type :

IAC SB AUTHENTICATION NAME
       "pete" IAC SE
and

IAC SB AUTHENTICATION IS <authentication-type-pair> AUTH <Kerberos V5
   KRB_AP_REQ message> IAC SE

But I can't implement this RFC 2942 procedure in hexa type just like above,
because I'm still not understand how to get these: 

1. "KRB_AP_REQ message" ?
2. what "<authentication-type-pair>" should I send ?
3. should I change the NAME "pete" with my login account "test" or "root" ?

I have login account : test and password : test to the Linux server

Looking forward for your responds and a lot of thanks.

Thank You

Best Regards
Riki Hendriana