[pptp-server] CTRL: PTY read or GRE write failed (pty,gre)=(5,6)

Murali K. Vemuri muralivemuri at multitech.co.in
Thu Nov 22 00:14:28 CST 2001


hi,
can you give this info?
1. how many ether net cards do you have?
2. double-- literally double ensure that when you compiled the kernel,
you enable unix pty support.
3. this error could also be because of different network addresses.
check your settings.
if you still get the problem, it would be convenient if you can provide
the following files:
/etc/ppp/options
/etc/ppp/ioptions
/etc/pptpd.conf
/etc/modules.conf
/var/log/pptpd.log
and a typical diagram of your setup( along with ip addresses)
regards
murali
Mark Burring wrote:

> I have deplyed PopTop so several servers to replace M$ vpn capability
> (mainly because W2K cannot multihome without dying) and one machine I
> get these errors:Nov 22 13:52:22 perth pptpd[16100]: CTRL: Client
> ***.***.***.*** control connection started
> Nov 22 13:52:22 perth pptpd[16100]: CTRL: Starting call (launching
> pppd, opening GRE)
> Nov 22 13:52:22 perth pptpd[16100]: GRE:
> read(fd=5,buffer=804d8a0,len=8196) from PTY failed: status = -1 error
> = Input/output error
> Nov 22 13:52:22 perth pptpd[16100]: CTRL: PTY read or GRE write failed
> (pty,gre)=(5,6)
> Nov 22 13:52:22 perth pptpd[16100]: CTRL: Client ***.***.***.***
> control connection finishedThis problem is listed in the FAQ and is
> caused by it being behind a firewall. However in this case, the
> machine is not behind a firewall, it is the firewall.I have1) added
> entries to the box's firewall to let 1723 and proto 47 through (not
> that they were being blocked in the first place)2) tried flushing the
> box's firewall rules3) tried binding poptop to the external
> interfaceThe only thing of note is that the kernel is patched to Masq
> pptp however its not being used in this case.--Regards, Mark Burring
> Internetworking Engineer Deeptech - Intelligent Networking
> Deepcare - Caring for Your IT Investment
> web: www.deeptech.com.au ; www.deepcareonline.com
> phone: 1300 361 954
> fax: +61 8 9201 2312
> postal: PO BOX 1324, West Perth WA 6872
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