Wi - Fi Security

Abstract: As a security-conscious network manager, you’ve listened to vendors when installing their new wireless LAN products. You’re confident about your network security and sleep fairly well at night. That’s fairly well.
Then, one morning, you come in the office only to find your entire corporate Web site replaced by hacker’s web page. The resulting audit reveals that the attackers came in through the wireless network. But how?
    One of the ugly truths vendors don’t tell you is that wireless networks are inherently less secure than their wired counterparts. Despite what you do, putting network ports in the air opens holes in your network that weren’t previously there - holes that must be plugged. It’s like putting Ethernet jacks on the outside of the building. What are you to do? Most people won’t argue about the incredible convenience and productivity increases possible with wireless networks, but no one can afford that convenience at the expense of compromised network security.

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WiMax For Bridging Digital Divide:

Abstract: In the same way as utilities, such as water and electricity, broadband access is becoming a must for all residential users, enterprises, public sites, schools and hospitals in most countries. Almost all governments have taken actions to reduce the so-called "digital divide" between well served urban areas and under-served areas.

      Connectivity is vital to Indian business and society. Globalization and the Internet have created rapid growth in information technology-related businesses in India. While Indians are enthusiastic about the Broadband Internet, the lack of physical connectivity or telecommunications infrastructure and the cost and lack of broadband technologies are a big hindrance to more widespread adoption of the Internet. But wireless technologies are beginning to offer reliable alternatives to fixed-line access, offering the potential for widespread, affordable connectivity to every region, village, and person in India.

Imagine a single wireless technology that can:

	Make portable Internet a reality by extending public WLAN hotspots to metropolitan area coverage for mobile data-centric service delivery,
	Connect enterprises and residential users in urban and suburban environments where access to copper plant is difficult,
	Bridge the digital divides by delivering broadband in low-density areas.

Thanks to its innovative technology, WiMAX will offer broadband wireless access at data rates of multiple Mbit/s to the end-user and within a range of several kilometers. The same radio technology will also offer high-speed data services to all nomadic terminals (laptops, PDAs, etc.) with an optimized trade off between throughput and coverage.

This paper first describes need of Wireless Broadband communication for bridging digital divide. Then, its Indian perspective and role of WiMax in filling information gap between well-served and under served areas. Moreover, this paper provide a tutorial overview of 802.16 (WiMax), its applications and issues to be addressed while deploying in Indian Environment.

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