Network Management Strategies for the CIO
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What do routers use MAC addresses for?
Find out what routers do with MAC addresses and why they're needed in this response from routing and switching expert Sudhanshu Gupta.
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Which Cisco router should I get as a starting network pro?
Learn which Cisco router to invest in as a networking beginner to hone your skills from Cisco certifications expert David Minutella.
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How to use IPv6 on an IPv4 backbone
Learn how to use IPv6 on an IPv4 backbone without dual stacking in this expert response from Silvia Hagen.
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What are recent security developments for MIPv6?
Learn about MIPv6 security and if it's safe for public Internet deployment in this expert response from Silvia Hagen.
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Will different wireless card link speeds cause network latency?
Our wireless networking expert, Lisa Phifer, explains how to avoid network latency when wireless network cards with different maximum link speeds slow down your WLAN.
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What makes a WAN different from a LAN and MAN?
Learn the basics of networking in this expert explanation of the differences between WANs, LANs and MANs -- how they connect and which protocols they use.
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The difference between half-duplex and full-duplex
Our networking fundamentals expert explains how to know if you're using half-duplex or full-duplex communication in this Ask the Expert response.
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How do I increase network signal strength over a large distance?
Learn how to establish a wireless network over a large area by incorporating access points or antennas in this expert response from Lisa Phifer.
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What HIPPA-compliant software would you recommend for online medicine?
Learn about HIPPA compliant telemedicine software in this response from a network security expert.
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How to test for packet loss on a broadband connection
In this Q&A, our expert explains how to measure your broadband connection for packet loss by using ping and trace route.
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Bandwidth calculations for wireless networks supporting VoIP
When designing a wireless enterprise network supporting VoIP, learn how to calculate bandwidth amounts per user and the number of calls a single AP can support simultaneously. This expert response ...
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How much harder is the CCNA from the Network+ exam?
Learn the differences between the CCNA and Network+ exams as well as the different certification options available from Cisco certification expert David Minutella.
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What is a logical network? How do you improve one?
Learn what logical and physical networks are and how to improve them, in this expert response with networking fundamentals expert, Chris Partsenidis.
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Buying your own WAPs vs. Internet service provider's wireless routers
Should you buy a wireless router from your Internet service provider or buy our own WAPs? Our wireless networking expert gives a case for each in this response.
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Are my Cisco certification course books too outdated to use?
If your Cisco certification course books are nine years old are they too outdated? Our Cisco certification expert explains their relevance to the exams and advises why they might be good to keep.
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What is 802.11n Greenfield mode used for?
Understand what 802.11n high throughput (HT) mode, or Greenfield mode, is in this explanation from our wireless networking expert.
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How to set passwords on folders in Windows 2003 servers
Learn how to configure file and folder security on a Windows 2003 server in this expert advice from Puneet Mehta, our network security expert.
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To simulate voice over IPSec VPNs which simulators work?
Learn which simulators you can use to simulate voice over IPSec VPNs in this advice from our network security expert.
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Does each routing protocol have a different routing table?
Learn from our routing and switching expert, Sudhanshu Gupta, whether different routing protocols such as RIP and IGRP have different routing tables or number of columns for specifying information ...
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How can I load balance between DSLs and LLs?
Learn how to load balance between 1 MB DSL and 2 MB LL from our routing and switching expert Sudhanshu Gupta.
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BYOD security: Which VPN is best for you, IPsec or SSL?
By 2016, 40% of the workforce will be mobile. IPsec VPNs are being widely discussed for BYOD security. But should we also be talking about SSL VPNs?
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Why should you care about SDN?
Expert Jim Damoulakis weighs in on the potential of software-defined networking, or SDN, and why you should care.
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Can you really have security, convenience and BYOD?
Employee-owned devices can seriously undermine security. But bring your own device is probably here to stay. So what should IT do?
Submit a question to our experts