UNIX gateways introduce massive performance possibilities at a fraction of the price of dedicated proprietary appliances by performing network tasks entirely in software. With Cisco Systems routers dominating the Internet and enterprise networking and UNIX routing and gateway solutions spreading from within server farms and data...

Cisco Certified Internetwork Expert (CCIE) certification is the most difficult and most rewarding of the Cisco(r) certifications. Although the professional and financial benefits of a CCIE are excellent, attaining this level of certification takes years of experience, study, and effort. Serving a dual role of networking...

In today's age of remote users and widespread Internet access, security continues to be of utmost importance to network administrators and engineers. This important, comprehensive guide shows you how to avoid common mistakes...

Today's Amateur Radio operators are using digital radio applications for fun, technical achievement, and public service. And it s no wonder. Getting started often requires little more than a VHF radio and a computer.
Without complicated owners manual jargon ARRL s VHF Digital Handbook presents the material through a unique how-to...

Cisco LAN Switching Configuration Handbook, Second Edition, is a quick and portable reference guide to the most commonly used features that can be configured on Cisco® Catalyst® switches. Written to be used across all Catalyst IOS platforms, the book covers general use of Cisco IOS®, followed by a series...

* Internetworking functions of each layer of the OSI reference model and how they are performed in network...