[pptp-server] Has anyone seen this error?

[Neale Banks]

On Tue, 21 Mar 2000, Christopher Tarricone wrote:

> Mar 21 15:18:23 chaos pptpd[3837]: CTRL: Client 63.89.28.221 control
> connection started
> Mar 21 15:18:23 chaos pptpd[3837]: CTRL: Starting call (launching pppd,
> opening GRE)
> Mar 21 15:18:24 chaos pppd[3838]: The remote system is required to
> authenticate itself but I
> Mar 21 15:18:24 chaos pppd[3838]: couldn't find any suitable secret
> (password) for it to use to do so.
> Mar 21 15:18:24 chaos pptpd[3837]: GRE:
> read(fd=4,buffer=804d7e0,len=8196) from PTY failed: status = -1 error =
> Input/output error
> Mar 21 15:18:24 chaos pptpd[3837]: CTRL: PTY read or GRE write failed
> (pty,gre)=(4,5)
> Mar 21 15:18:24 chaos pptpd[3837]: CTRL: Client 63.89.28.221 control
> connection finished

You mean the "The remote system is required to authenticate itself but I
couldn't find any suitable secret (password) for it to use to do so." bit?

Looks like maybe the username the client is presenting can't be found in
the local chap-secrets.  If this is a MS-client calling, then a likely
cause is the client presenting DOMAIN\\name.

Altenatively, this may be pppd's way of saying that he *calling* side has
requested that the pptp server authenticate itself.  A common cause of
this is using the linux pptp client to call but *not* including the
"noauth" option for teh *calling* pppd.

Can you enable debugging in the pppd options and post the (possibly
sanitised) output?  We might get a better handle on what's up then.

Also, any hints available from the calling side?  Even an indication of
what is doing the calling would help.

HTH,
Neale.