Re: [SLUG] Problems with wvdial/PPP - URGENT

[Chris Barnes <runtimeerror@xxxxxxxxxxx>]

On Tue, 2002-10-29 at 15:01, dan wrote:
> Hi Chris,
> 
> Thanks for the reply.  Yes there is a firewall on both the box I am dialing
> in from (SuSE personal firewall) and the box I am dialing into.  I have had
> this working before so I am really unsure it is the firewall causing the
> problem (much more likely to be something I have done).
> 
> So stuff I have done on the dial-in server is:
> 
> in inittab: mo:235:respawn:/usr/sbin/mgetty -D ttyS0
> 
> /etc/mgetty+sendfax/mgetty.config
> port ttyS0
> 
> /etc/mgetty+sendfax/login.config
> /AutoPPP/ -     a_ppp   /usr/sbin/pppd auth login -chap +pap
> *       -       -       /bin/login @

I'm assuming you have added credentials in /etc/ppp/pap-secrets so that
pppd can authenticate the remote user connecting.

> 
> /etc/ppp/options.ttyS0 file:
> 
> myservers IP address:192.168.23.2
> debug
> lock
> ms-dns primary DNS ip address
> ms-dns secondary DNS ip address
> 
> Does this look correct?

I dont see a problem with that...but I used to add "asyncmap 0",
"crtscts", "defaultroute" and "modem" to
/etc/ppp/options.ttyS0...although I dont know what the impact of those
are.


Oh wait a second! where is the configuration to tell pppd what ip to use
and what ip to send the remote host? I cant remember which file but
there is usually a file which would have a pool of ip address which pppd
could send to the remote host...

try using this syntax in your options.ttyS0 file:

local address:remote address

local address being the address of the dial-in server. set this address
to be something different to any other interface addresses...e.g. dont
use the same ip or subnet as the address your ethernet interface is
using, make up a new subnet (this might require a slight reconfig of
your firewall).

remote address being the address you want the connecting machine to use.
again done use the same subnet as any other interfaces on your dial-in
server or the connecting machine.

Example:
10.3.2.1:10.3.2.2

this means that once the connection has been established and
authenticated the dial-in server will create a ppp interface with the
address 10.3.2.1 and then it will send the address 10.3.2.2 to the
connecting machine.

let me know how you go.


> 
> Cheers
> 
> Dan
> 
> ----- Original Message -----
> From: "Chris Barnes" <runtimeerror@xxxxxxxxxxx>
> To: "SLUG" <slug@xxxxxxxxxxx>
> Sent: Wednesday, October 30, 2002 2:15 PM
> Subject: Re: [SLUG] Problems with wvdial/PPP - URGENT
> 
> 
> > I could be going down the wrong path all together here but on the remote
> > machine it says "No response to 4 echo-requests"..i have no idea but
> > could a firewall be causing this problem? do you have a firewall running
> > which could be dumping incoming icmp packets on the dial-up interface?
> >
> > I really don't know...that was just a guess...all the dial-up servers
> > I've configured seem to work relatively fine first go for me.
> >
> > how about you give us a snippet of your config for the dial-up server.
> >
> >
> > On Tue, 2002-10-29 at 12:45, dan wrote:
> > > Hi,
> > >
> > > I am having some real problems with wvdial on SuSE 7.2.  I am dialing
> into
> > > my own Dial-in server and the line is being dropped immediately by the
> > > modem.
> > >
> > > I am trying to work out why this is happening.  From the linux box I am
> > > dialing in from here are some messages from /var/log/message:
> > >
> > > Script /etc/ppp/ip-up finished (pid 1993), status = 0x0
> > > Oct 29 12:49:04 linux pppd[1991]: rcvd [LCP EchoReq id=0x1
> magic=0x698b01dd]
> > > Oct 29 12:49:04 linux pppd[1991]: sent [LCP EchoRep id=0x1
> magic=0x6df45bfd]
> > > Oct 29 12:51:18 linux pppd[1991]: rcvd [LCP EchoReq id=0x2
> magic=0x698b01dd]
> > > Oct 29 12:51:18 linux pppd[1991]: sent [LCP EchoRep id=0x2
> magic=0x6df45bfd]
> > > Oct 29 12:51:37 linux pppd[1991]: Hangup (SIGHUP)
> > > Oct 29 12:51:37 linux pppd[1991]: Modem hangup
> > >
> > > And from the remote machine I am trying to connect to:
> > >
> > > ct 29 12:32:03 www pppd[22175]: No response to 4 echo-requests
> > > Oct 29 12:32:03 www pppd[22175]: Serial link appears to be disconnected.
> > > Oct 29 12:32:07 www pppd[22175]: Connection terminated.
> > > Oct 29 12:32:07 www pppd[22175]: Connect time 3.1 minutes.
> > >
> > > As far as i can see the modem and the dial-in server are setup correctly
> so
> > > does anyone have any ideas why the modem is hanging up straight away?
> > >
> > > Should I be looking in any other logs files for clues?
> > >
> > > Thanks
> > >
> > > Dan
> > >
> > > --
> > > SLUG - Sydney Linux User's Group - http://slug.org.au/
> > > More Info: http://lists.slug.org.au/listinfo/slug
> >
> >
> > --
> > SLUG - Sydney Linux User's Group - http://slug.org.au/
> > More Info: http://lists.slug.org.au/listinfo/slug
> >
> 
> -- 
> SLUG - Sydney Linux User's Group - http://slug.org.au/
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