Allow server network to print to client computer

e-zero

I have a Windows 7 machine using openVPN to connect to our server network. Once on the network we are able to connect to our POS system (this is a separate machine on the server network). This POS system works through a telnet session, and when we need to print from our POS system it sends a print job to a static IP that the client should have. I've assigned our client computer with the appropriate static IP (via the openVPN Access Server web admin) that the POS system is sending to, but my client computer is not printing the print job.

I've tried disabling the Windows 7 firewall completely but that did not work, so I'm thinking I need to set something up in the openVPN settings??

maikcat

which protocol do you use for printing? lpd?

Michael.

e-zero

Yes, the protocol is LPD.

e-zero

Any help on this???

maikcat

any chance to use wireshark to capture lpd traffic on windows machine?

e-zero

Sure, I'll give that a shot...let me get back to you...

e-zero

I put the filter in wireshark to "lpd", then tried to print as usual, but nothing appeared in wireshark. Does that mean that the print job is not even reaching my laptop?

e-zero

actually I can't even ping from the server to the client computer. The client can see the network, but the network can't see the client.

rsenio

Does the "network" have a route back to the openvpn client? Do the firewall rules allow the traffic on the network server from the openvpn subnet, and visa versa?

e-zero

The server is behind an ASUS RT-N66U router.

The only ports I have setup for port forwarding are the following:

1194 - VPN
943 - VPN Admin web interface
22 - TELNET

The firewall on this router is enabled by default, but I do not have any custom firewall rules setup.

Traffic

How is the VPN client connected to the printer ?

e-zero

The printer is directly connected to the VPN client (It is a local printer connected via USB on the client machine). The POS server sends a print job to that client.

Traffic

Does the printer have an IP address .. or is it a device like LPT1 or COM1 ?

(I am not particularly familiar with lpd)

e-zero

It is a shared printer on LPT.

maikcat

actually I can't even ping from the server to the client computer. The client can see the network, but the network can't see the client.

lets focus on this please,

your client CAN ping the server but not the other way around?
if yes then something blocks traffic on your client...

Michael.

e-zero

All we have is a server that runs debian openvpn (all default settings) and on top of that an asus n66u router. I'm thinking there needs to be a particular port forwarding rule for the router??