Re: [pptp-devel] Unsupported Protocoll-Problem

[Jon B. <jbu...@uk...>]

On Tue, 2006-06-13 at 11:48 +0200, Mathias Peters wrote:
> I think there is a problem with the compression of the data considering 
> the unsupported compression protocoll messages...

> Jun 13 11:42:38 mifune pppd[9451]: rcvd [CCP ConfReq id=0x0 <mppe +H -M 
> -S +L -D -C>]
> Jun 13 11:42:38 mifune pppd[9451]: Unsupported protocol 'Compression 
> Control Protocol' (0x80fd) received
> Jun 13 11:42:38 mifune pppd[9451]: sent [LCP ProtRej id=0x3 80 fd 01 00 
> 00 0a 12 06 01 00 00 20]

CCP is required for encryption using MPPE. It looks like the Draytek
refuses to establish a tunnel without encryption. 

You need to make sure you've got MPPE working in your config. At a
minimum, you'll need to get rid of "noccp" and might need to add "mppe"
in the line below:-

> pptp <host> mtu 1450 debug noauth noccp user <username> password <pw> 
>  remotename <tunnelname>

For more help try looking at:-

http://pptpclient.sourceforge.net/howto-diagnosis.phtml#mppe

	Jon