well if all your comps have the same ip scheme then it is good.
the gateway will be 192.168.2.1
your gateway is your doorway to the internet
start>run type cmd to open command prompt...
type ping 192.168.2.1
infact try pinging all the computers on the network
edit: nevermind says packets sent: 4 recieved: 0 lost: 4 (100% lost)
with the 192.168.2.1 0% was lost