Long delay on PPP for win nt

[DC]

Hello Newsgroup,

I have run into great trouble with Windows NT and PPP. My setup is like
this:

A Win NT client dials into a Win NT server through a satellite link, I
control both ends. From the PPP.log both on the server and the client, I can
see that the call is answered, (The client says verifying username and
password) and LCP negotiations seem to be successful: (ppp.log from the
server side)

"

LCP Local Options-------------
MRU=1500,ACCM=0,Auth=0,MagicNumber=32613,PFC=ON,ACFC=ON
Recv Framing = PPP,SSHF=OFF,MRRU=1500
LCP Remote Options-------------
MRU=1500,ACCM=0,Auth=c223,MagicNumber=4392,PFC=ON,ACFC=ON
Send Framing = PPP,SSHF=OFF,MRRU=1500
LCP Configured successfully
Authenticating phase started

"

However, the chap negotiation that follows never succeeds. It looks to me as
if the chap protocol fails due to a timeout, because of the satellite delay
of approx. 2 secs.

How can I make this work? I cannot change to a different OS, and of course I
cannot change the delay on the link. Is there anyway I can tweak the timeout
in winnt/chap? Or can anyone see something that I have missed from the log
files? I will be grateful for any comment, hint or advice

Best regards Dave

See the complete logs:

http://cxp.dk/ppp/client_ppp.log

http://cxp.dk/ppp/server_ppp.log

[Patrick Klos]

Post by DC
Hello Newsgroup,
I have run into great trouble with Windows NT and PPP. My setup is like
A Win NT client dials into a Win NT server through a satellite link, I
control both ends.

Does the satellite link look like a regular serial (COM) port or modem to
Windows? How is the link set up? Can it pass pure binary without trouble?

Post by DC
From the PPP.log both on the server and the client, I can
see that the call is answered, (The client says verifying username and
password) and LCP negotiations seem to be successful: (ppp.log from the
server side)
LCP Local Options-------------
MRU=1500,ACCM=0,Auth=0,MagicNumber=32613,PFC=ON,ACFC=ON
Recv Framing = PPP,SSHF=OFF,MRRU=1500
LCP Remote Options-------------
MRU=1500,ACCM=0,Auth=c223,MagicNumber=4392,PFC=ON,ACFC=ON
Send Framing = PPP,SSHF=OFF,MRRU=1500
LCP Configured successfully
Authenticating phase started
However, the chap negotiation that follows never succeeds. It looks to me as
if the chap protocol fails due to a timeout, because of the satellite delay
of approx. 2 secs.

Actually, it looks like you lost the first 7 CHAP Responses going from the
client to the server (and subsequent responses were severly delayed). Maybe
the satellite link doesn't deal well with control characters? I don't know.

Unfortunately, I can't find a place that would allow you to override the
defaults - if I could, I'd suggest you set the ACCM to 0xffffffff. If you
can find that, try it.

Good luck!

Patrick Klos
============= For PPP Protocol Analysis, check out SerialView! =============
Patrick Klos Email: ***@klos.com
Klos Technologies, Inc. Web: http://www.klos.com/
============================================================================