I'm hoping someone can help me, because this issue has been irritating me for quite some time now. I have two routers, one wireless (Linksys WRT54GS), and the other, a SonicWall Security Appliance TZ170SP. I have computers (wireless/wired) that connect to both of the routers, as well as, a wired network printer that connects to the wireless router. The SonicWall (wired router) is connected to the Internet via a cable modem.
I would like to establish bi-directional communication between the two routers, while maintaining two separate networks, on two separate subnets. I have read many posts regarding similar situations, which all seem to advise connecting the LAN port of one router to the LAN port of the other router (not the WAN port on the second router). When I do this, I lose my internet connection on the wireless router. Most of these scenarios also involve simulating a switched environment on the second router, which would eliminate the possibility of having two separate networks.
Similar scenarios to what I'm trying to accomplish are setup in virtually every enterprise environment. I'm not sure if the fact that I'm using a SOHO (Linksys) router precludes the possibility of accomplishing my goal.
I have setup a website, http://www.interwerks.net/routing that maps out my environment in detail. On this website, you will find screenshots of the various pages of the Management Interfaces that I believe would apply to troubleshooting this issue. I have also included more details about what I am trying to accomplish. The site is resident in a password-protected directory. Please use the following credentials to access this resource.
Thanks in advance to anyone that attempts to assist me with this. Your help is much appreciated. Regardless of whether or not you can help me resolve this issue, I appreciate the input.