Disabling MRU negotiation during PPTP / LCP negotiation to a win2kpptp server

N

noone

I have a Dell Inspiron with XP SP1 installed, and trying to get PPTP to
an win2k server at the office working. To cut the story short, using
ethereal, what I am seeing is that the win2k pptp server is sending back
an PPP LCP Nak because the PPP LCP Request sent by the XP SP1 machine
had an MRU of 1400, and the win2k pptp server only accepts an MRU of 1500.

How do I disable MRU negotiation on the client side ... so that it does
not send out the MRU option during the LCP negotiation ?

What is also interesting is that, other installations of XP are able to
successfully negotiate a PPTP connection.
 
N

noone

noone said:
I have a Dell Inspiron with XP SP1 installed, and trying to get PPTP to
an win2k server at the office working. To cut the story short, using
ethereal, what I am seeing is that the win2k pptp server is sending back
an PPP LCP Nak because the PPP LCP Request sent by the XP SP1 machine
had an MRU of 1400, and the win2k pptp server only accepts an MRU of 1500.

How do I disable MRU negotiation on the client side ... so that it does
not send out the MRU option during the LCP negotiation ?

What is also interesting is that, other installations of XP are able to
successfully negotiate a PPTP connection.
Click to expand...


To elaborate a bit, here are the relevant snippets:

Frame 24 (68 bytes on wire, 68 bytes captured)
< ... snip ... >
Generic Routing Encapsulation (PPP)
Point-to-Point Protocol
PPP Link Control Protocol
Code: Configuration Request (0x01)
Identifier: 0x03
Length: 18
Options: (14 bytes)
Maximum Receive Unit: 1400
Magic number: 0x1d633e05
Protocol field compression
Address/control field compression



Frame 25 (62 bytes on wire, 62 bytes captured)
<...snip...>
Generic Routing Encapsulation (PPP)
Point-to-Point Protocol
PPP Link Control Protocol
Code: Configuration Nak (0x03)
Identifier: 0x03
Length: 8
Options: (4 bytes)
Maximum Receive Unit: 1500
 

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