Cisco 1941W Wireless Configuration Example

I own this router and I plan on setting it up for home user. Can I create a 3rd ssid for Guest?

What I really want to do is create an SSID for my 2.4GHz (Home2G) and one for my 5GHz radio (Home5G). Then on the 2.4GHz, create a 3rd one for Home2GGuest.

Is this possible?

I guess I can do:

Ap(config)#interface dot11Radio 0
Ap(config-if)#description 2.4GHz Radio
Ap(config-if)#encryption mode ciphers aes-ccm
Ap(config-if)#ssid Home2G
Ap(config-if)#bridge-group 10
Ap(config-if)#no cdp enable

Ap(config)#interface dot11Radio 0
Ap(config-if)#description 2.4GHz Radio
Ap(config-if)#encryption mode ciphers aes-ccm
Ap(config-if)#ssid Home2GGuest
Ap(config-if)#bridge-group 10
Ap(config-if)#no cdp enable

But how do I prevent users on the Home2GGuest from accessing my LAN network?