[pptp-server] Pptp is working, however something's wrong!

robert berzerke at swbell.net
Mon Oct 15 21:58:40 CDT 2001

Printing and retrieving files proves the communication is two way.  I suspect 
your firewall is blocking the pings, or perhaps the client has a firewall 
that blocks pings...

On Monday 15 October 2001 04:41 pm, Steve Host wrote:
> Setup: Dialup clients, connecting via PPTP to Linux gateway.
> Current state: client can ping any internal addresses, it can also browse
> any computers and retrieve files. Printing over network is no problem.
> Machines behind firewall on the LAN can not ping the clients assigned IP
> address, thus they can't reach the client.
> Client also doesn't see all the machines by default on network
> neighbourhood (however //<name> works)
> I'm mostly concerned with the seemingly one way nature of the connection,
> and looking for possible causes of this.
> I've set the samba server to act as a WINS server, however only the dialup
> client is aware of the server. I don't believe this should make a
> difference.
> Forwarding rules:
> /sbin/ipchains -A input -p TCP -d 1723 -j ACCEPT
> /sbin/ipchains -A input -p 47 -j ACCEPT
> /sbin/ipchains -A output -p TCP -s 1723 -j ACCEPT
> /sbin/ipchains -A output -p 47 -j ACCEPT
> /sbin/ipchains -A forward -s -d -j ACCEPT
> The last line is because the Client's IP range is while
> PC's are in the range
> Thanks, folks.
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