Accessing printer across two networks

[rx2]

Hi -

I have a printer connected with a static IP via ethernet to the primary network, and also have a guest network setup for the kids. However, it would be great if both networks could have visibility of the printer. I don't want to "enable intranet" access for the guest network, as this would expose the entire primary network. Is there way to make the printer visible on both networks?

Cheers,

 

[itpp20]

Maybe use port forward (for raw / lpr) on the AP ?

 

[rx2]

Maybe use port forward (for raw / lpr) on the AP ?

Good suggestion - though it would mean when connecting to the printer on the guest network they would need to use the WAN IPort. I am not sure I like the idea of exposing the printer via WAN. I was hoping some other trickery was possible.

 

[itpp20]

It depends on what options there are for port forwarding, if the Wifi uses a different subnet then wired you should be able to forward between them, for example I have an AP on a router port with a router VLAN, I have a second router (a $50 EdgeRouter er-X) between the wired AP side and the main router (beyond the VLAN) exposing a LPR port on its WAN side (which is still the LAN on the Wifi side) going back to a printer on the main LAN. Anyone can print from Wifi VLAN's and my other purpose, I can access storage which is on a Wifi VLAN.

 

[dev_null]

This has been asked a few times. @Martineau had created a couple of scripts, but I was unsuccessful getting them to work with modern hardware, and that was before guestnet1 put itself on a different subnet. Report back if you get this to work please?

• https://www.snbforums.com/threads/h...ersonal-protected-networks.50027/#post-445479
• https://www.snbforums.com/threads/guest-network-question.36500/post-297997
• https://www.snbforums.com/threads/allow-guest-network-access-to-single-ip-for-printer.41525

 

[eibgrad]

Good suggestion - though it would mean when connecting to the printer on the guest network they would need to use the WAN IPort. I am not sure I like the idea of exposing the printer via WAN. I was hoping some other trickery was possible.

You don't *have* to use port forwarding and thus expose the printer to the internet for these purposes. You can simply use a pair of DNAT/SNAT rules to force redirection of *any* IP (other than one belonging to the current IP network) back into the local network.

The following thread over on the tomato forums (LinksysInfo.org) explains how (w/ my own commentary as to why any DNAT requires a corresponding SNAT).

Redirect Outbound (WAN) to an internal IP (LAN)

I wonder how to forward an outgoing WAN connection, intercept it and redirect to a local address. example if a user access abc.com (111.111.111.111:80) it will be redirected to 192.168.1.10:80?

www.linksysinfo.org