[pptp-server] GRE: read error: Protocol not available

[Murali K. Vemuri]

hey,

i am getting inconsistent errors. some times i get the error " Error
with select (), quitting"
and some other times, i get the error " PTY read or GRE write failed"
i am using kernel 2.4.6, ppp 2.4.1 and pptp 1.0.1 , 1.1.2 ( i had been
getting the same problem with both).
client is win 98 machine ppp link is fine with mppe -40 encryption.
also, if i enable only "mppe-128" on the server, he fails to connect.
any ideas?
regds
murali krishna vemuri
George Vieira wrote:

> I think I may have missed something in the kernel compile... Will find
> out in an hours time if the changes I did may have helped or not...
>
> thanks,
> George Vieira
> Systems Manager
> Citadel Computer Systems P/L
> -----Original Message-----
> From: Murali K. Vemuri [mailto:muralivemuri at multitech.co.in]
> Sent: Monday, 10 December 2001 11:30 AM
> To: George Vieira
> Cc: PPTP List (E-mail)
> Subject: Re: [pptp-server] GRE: read error: Protocol not available
> hey !
>
> i am also getting precisely the same error with kernel 2.4.6, ppp
> 2.4.1 and pptp 1.0.1 & 1.1.2 ( i tried both).
> any suggestions ?
> regds
> murali
> George Vieira wrote:
>
>> Hey peeps,Rebuilding my firewall and reinstalling all the patches
>> etc for Kernel 2.4.16 and pppd 2.4.1 but I got errors when
>> connecting about a protocol not avialable.. I assume it's GRE as
>> below.Which options could this be in the kernel? Should it be a
>> module or built into the kernel? It's been a while since I've built
>> kernels and done anything with pptp.....argh!Dec 10 07:51:48
>> firewall pptpd[1201]: CTRL: Starting call (launching pppd, opening
>> GRE)
>> Dec 10 07:51:48 firewall kernel: CSLIP: code copyright 1989 Regents
>> of the University of California
>> Dec 10 07:51:48 firewall kernel: PPP generic driver version 2.4.1
>> Dec 10 07:51:48 firewall pppd[1202]: pppd 2.4.1 started by root, uid
>> 0
>> Dec 10 07:51:49 firewall pppd[1202]: Using interface ppp0
>> Dec 10 07:51:49 firewall pppd[1202]: Connect: ppp0 <--> /dev/pts/0
>> Dec 10 07:51:49 firewall pptpd[1201]: GRE: read error: Protocol not
>> available
>> Dec 10 07:51:49 firewall pptpd[1201]: CTRL: PTY read or GRE write
>> failed (pty,gre)=(5,6)
>> Dec 10 07:51:49 firewall pptpd[1201]: CTRL: Client x.x.x.x control
>> connection finished
>> Dec 10 07:51:49 firewall pppd[1202]: Modem hangup
>> Dec 10 07:51:49 firewall pppd[1202]: Connection terminated.
>> Dec 10 07:51:49 firewall pppd[1202]: Exit.
>>
>> thanks,
>> George Vieira
>> Systems Manager
>> Citadel Computer Systems P/L
>
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