Question : Adding a second wifi router to an existing small office network

Hi Experts,

  So, I have an office with a ATT wireless router for network access within the office. I would like to add a second router but for visitors to connect to it via wifi. I don't however want these visitors to have access to the internal network. So, i've done the following and its not working as I thought it would.

I plugged in the second router to one of the lan ports in the first router. On the second router I setup a static ip address 192.168.1.2 as the internet address that is within the same range of the first router. and I setup the local ip address at 192.168.2.1 with dhcp enable so who ever connects to it via wifi will get that 192.168.2.1 range.

Well i can connect to the second router and I can go out to the inter BUT I can also ping the addresses within the 192.168.1.2 range and I don't want that.

Any ideas on how I can go about this?

Answer : Adding a second wifi router to an existing small office network

There's nothing you can do to stop the second router from accessing the other addresses on the first router unless you put it behind a Firewall, and only allow access to 192.168.1.x (x being the local IP you want the router to be on).