[pptp-server] RE: Can access shares on poptop server but nothing else!

[Cowles, Steve]

> -----Original Message-----
> From: David Rankin [mailto:drankin at cox-internet.com]
> Sent: Tuesday, March 13, 2001 10:18 PM
> To: George Vieira; Christopher Tresco; Robert; Cowles, Steve; poptop
> Subject: Re: Can access shares on poptop server but nothing else!
> 
> 
> George Vieira wrote:
> 
> > Can you view the shares using IP addresses. eg.
> >
> > net view \\192.168.7.xx
> >
> > if this fails then it's probably because you can't get 
> > throught the network (ipchains problem).
> >
> 
> George,
> 
> net view /WORKGROUP:RB_LAW /yes returns the following when 
> run from my Win98 box at home. NEMESIS is the Linux/Samba/
> PopTop server at work (aptly named), SKYLINE is home, the
> rest are the remainder of the machines in my office (don't
> ask how TRIPOD got its name). Everything seems OK, no name 
> resolution problems
> at all.
> 
> Servers available in workgroup RB_LAW.
> Server name            Remark
> 
> \\BERTIN               Darren's Crippled Maching
> \\NEMESIS              RB_LAW Samba Server 2.0.7
> \\RANKIN               DAVID C. RANKIN
> \\SECRETARY            PIII 866 20G
> \\SKYLINE              Home 233MHz 20G
> \\TRIPOD               P233MMX 20G
> The command was completed successfully.
>

Based on your prior posts... your WINS server is running on your PPTP
server, so the above "could" actually work because the browse request (from
the client) does not have to be routed past the PPTP server. 

> >
> > Have you got the vpn PPP link totally free of ipchains 
> > firewall rules?
> 
> Yes. I don't use ipchains, I'm behind a cable/dsl router that 
> provides NAT. Router port 1723 is forwarded to NEMESIS.

Since you are able to establish a PPTP tunnel and at least "talk" to the
PPTP server, I will leave the above alone. Although, I still think you have
a routing and/or arp related problem.

> 
> >
> > Have you got ip forwarding enabled on your pptpd server?
> 
> Uhh, I think so? All of my IP traffic goes through NEMESIS. 
> It is my internal DNS and gateway and handles all of the
> traffic from the router and forwards it to the right machines
> in the office. All of the machines have no problem accessing
> the net through NEMESIS. I guess a picture would help
> 
> [SKYLINE] => [internet] => [Linksys cable/dsl router] => 
> [NEMESIS] =>[others on lan]

What is the value of /proc/sys/net/ipv4/ip_forward  ?? It needs to be one
(1)

To check value, type: cat /proc/sys/net/ipv4/ip_forward

Also, when the PPTP client connects - does /var/log/messages show the
ethernet interface (like eth0) being set as proxy arp for the PPTP client?
i.e.

Mar 12 16:53:52 excelsior pppd[767]: found interface eth0 for proxy arp

If not, you will only be able to talk to the PPTP server (from the client)
and no further.

Steve Cowles