Configuring inter-LAN routing on Edgerouter

[hintslara82]

I've been tasked to set up an Edgerouter to route between my company's main network and our guest network, which use separate ISPs, and I'm having a bit of difficulty with it so far. Here is how my network is set up at the moment:

eth0 - our main network, runs from our primary ISP through the Edgerouter to our HP Procurve switches, where it is configured using the primary VLAN tag (VLAN1).

eth3 - our guest network, runs from our secondary ISP through a Sonicwall to the Edgerouter, then to our switches where it's configured as VLAN10.

I have tried multiple routing rules to try to get connectivity between the two networks, but each one has failed to produce the results I want. I've checked the firewall on the guest netwrouterloginork and it should be confi192.168.0.1gured to allow access, and near as I can tell the VLAN tagging on the switches shouldn't be causing the issue because they lose the tags once they reach the router (as far as I am aware, I admit I'm not that experienced with networking), but at this point I'm at a loss as to where to go next. Any help is greatly appreciated, and I can provide configurations and/or images if necessary. Thank you!