wee-haggis

Newbie here. I have a Foscam rotate/tilt IP Cam which I have had running nicely for 3 years. I can remotely view it via the Foscam website via log in. I recently purchased a small generic mini IP Cam. I cannot figure out how to have both of them plugged in without the original cam failing. I'm wondering if its maybe something to do with port number or port forwarding (which I am completely unfamiliar with). I use a Netgear router with my modem.

Thanks. I have no idea how to change port. Can you please assist. I am using Imac Computer and Netgear router.

I bought a cheap IP Cam on Ebay. It came with an install CD but it was for PC (I have a Mac). The IP Cam does work with Mac, by the way. I emailed the company and they sent a link to download the software. The website is in Chinese and it took a while to translate. It will not download (not sure why). Contacted seller and asked for a link directly to English software. They cannot help. Is there a way to set up an generic IP Cam on my Mac if I have the serial number,ip address,user name and password ? The camera shows a website xmeye.net .......but I can't use it (after trying numerous times)