1. "Setting an IP WAN & LAN":
Prepare / turn on your Linksys WRT54G Router.
Connect the data cable (UTP Straight Cable) to the LAN port of your computer / Laptop.
IP settings on your computer / laptop you to DHCP so much easier. Like the image below



check ip, netmask and gateway received your computer.
open your browser and enter the gateway ip to your computer before, the default http://192.168.1.1/.
Now, will arise form the password for access to the router, the default user / pass: admin
On its Internet Connection Type, please choose: DHCP or Static, this tergantug ISP you use.







and went into the Network Setup settings, Settingan LAN according to your liking or leave it to default.Jika you select disable DHCP then you need to enter IP, Netmask, Gateway and DNS manually to each client.
for Time GMT +7 Zonenya select for Indonesia, the others are up Anda.lalu Setting.Nah Save up to here, the Client can use the cable already connected to the internet.