Setting Linksys WRT54G Router as a Gateway

Linksys WRT54G dwe can make the server as a gateway for Internet connection that we have, we may have to provide the server pc so that the cost should we provide will be more expensive. For configuration WRT54G This is not too difficult. The steps: If you choose to disable the DHCP then you must enter the IP, Netmask, Gateway and DNS manually for each client.

Setting the IP WAN & LAN

• Turn Linksys Router WRT54G.
• By using the UTP cable that has been provided (Straight cable UTP) cable to plug in a computer or notebook while in the Router port to plug in a LAN.
• Set the IP in the computer / notebook into a DHCP and will usually get the IP automatically from the Router.
• Then see the IP obtained by the computer / notebook.
• using a browser, the browser address bar enter the ip gateway computer (usually 192.168.1.1 router from the default).
• Then, the window appears that asks to enter a password access, the default user and password: Admin
• In the Internet Connection Type select the appropriate connection with the use (depending on the ISP): DHCP or Static.
• In baguan Network Setup, Silence They Cry LAN we can select according to the needs of our desire or whether static or DHCP. if we select static, we must fill the IP Address. Netmask, gateway and DNS in manual.
• Time Zonenya choose GMT +7 to Indonesia and then to the save.
• and then the Save Settings.
• until then here's Router is ready to connect to the Internet, live UTP cable from the device connected to the Internet port to plug in our WAN.

Wireless Settings

• entrance to the Wireless Menu
• Wireless network options select a Mixed mode.
• SSID and then write the appropriate willingness we (can nickname, address, name or anything that)
• Wireless Channel selected default, except when in the vicinity of our many wifi / hotspot that can be offending connection (from the experience of this device Keep me from the device because it often disrupt indovision)
• and then the Save Settings.

Wireless connection to secure, then we live security.Tipe install security we can use WEP or WPA. but the habitat of many who choose a 64 bit WEP.

How the Security Wireless configuration:
* Menu Wireless
* And then select the WEP security mode
* Transmite key to select a default 1 (which may also other)
* WEP Encryption select 64 bits with 10 hex digits
* Type in the passphrase and click generate, will appear 4 key wifi to access your password, please use the
Key 1, (if we choose defaul transmitenya = 1).
* Save SettingsSo now REDE Wireless Router is used for both cable and wireless and wireless have security / security.

Congratulations to try it .... cause the device to the wireless router also setingannya other more or less the same ampir.

When we have other servers in the network from LAN Router, and we want the server can diremote from outside the network, then we can activate functions porrt forwarding, or DMZ.

Wireless LAN

Definition: WLANs provide wireless network communication over short distances using radio or infrared signals instead of traditional network cabling.
A WLAN typically extends an existing wired local area network. WLANs are built by attaching a device called the access point (AP) to the edge of the wired network. Clients communicate with the AP using a wireless network adapter similar in function to a traditional Ethernet adapter.

Network security remains an important issue for WLANs. Random wireless clients must usually be prohibited from joining the WLAN. Technologies like WEP raise the level of security on wireless networks to rival that of traditional wired networks.

wireless LAN
Examples: For WLANs that connect to the Internet, Wireless Application Protocol (WAP) technology allows Web content to be more easily downloaded to a WLAN and rendered on wireless clients like cell phones and PDAs.


WLAN standards

WLAN standards below the metropolitan level are fairly well defined; most people have heard about 802.11b and g Wi-Fi standards. Some upcoming standards like 3G are attempting to increase range and seamless availability. Others like 802.1x, EAP, and 802.11i are attempting to increase security. Currently, the industry emphasis is on extending range or strengthening security rather than trying to increase speed, but that may change in the future.

802.11a, b, and g: The big three standards
The 802.11a, b, and g standards are by far the most common ones for home wireless access points up through large business wireless systems. The differences in the protocols are these:

802.11a
- Shortest range of the big three standards (generally around 60 to 100 feet)
- Broadcasts in the 5GHz frequency
- Supports up to 54Mbps (megabits per second) speed
- Less able to penetrate physical barriers like walls
- Better speed than 802.11b, supports more simultaneous connections, and because it operates in a more regulated frequency, gets less signal interference from other devices, so is considered to be more consistent in terms of maintaining a connection. In certain circumstances, such as areas with major radio interference (e.g., airports, business call centers), 802.11a will outperform and actually outrange 802.11b.

802.11b
- Better range than 802.11a: up to 300 feet in ideal circumstances, and better than 802.
11a even in real-world circumstances (Tests by independent reviewers tend to achieve
anywhere from 70 to 150 feet.)
- Broadcasts in the 2.4GHz frequency
- Supports up to 11Mbps speed
- Hardware tends to be lower in cost nowadays.
- Better able than 802.11a to penetrate physical barriers, and lower in cost, but cannot support as many simultaneous connections. Also, it operates on the same frequency as many cordless phones and other appliances; therefore, it is more susceptible to interference and other things that degrade its performance, so it's not considered a good technology for certain applications requiring absolutely reliable connections, such as live video streaming.

802.11g
- Very close to 802.11b in certain aspects; is actually backwards compatible with 802.11b
products (but will run only at 802.11b speeds when operating with them)
- Faster speed than 802.11b; supports up to 54Mbps. Some proprietary solutions (Netgear,
Linksys) manage to get 108Mbps out of the 802.11g standard by broadcasting on more than
one of the eight channels that 802.11b uses.

- Also uses the 2.4GHz frequency
- Slightly shorter range than 802.11b, but still better than 802.11a. Most independent reviews
report around 65 to 120 feet in real-world situations.
- Suffers from the same problems, such as interference and absolute reliability, as 802.11b

Wi-Fi - Wireless

Definition:
Wi-Fi is the industry name for wireless LAN (WLAN) communication technology related to the IEEE 802.11 family of wireless networking standards. To some, the term Wi-Fi is synonymous with 802.11b, as 802.11b was the first standard in that family to enjoy widespread popularity. Today, however, Wi-Fi can refer to any of the established standards: 802.11a, 802.11b, 802.11g and 802.11n.
The Wi-Fi Alliance (see sidebar) certifies vendor products to ensure 802.11 products on the market follow the various 802.11 specifications.

Unfortunately, 802.11a is not compatible with 802.11b/g, so the Wi-Fi market remains somewhat fragmented.