Network Management Strategies for the CIO
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Problem connecting to virtual private network (VPN) through Linksys router
When your remote worker has problems connecting to your virtual private network (VPN) only when they go through a Linksys router, use these steps to resolve the connection issue.
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Why wireless network cards show activity when no one uses the computer
Your wireless network card shows activity when you're not using it. Is someone hacking your unit? See what's using your connection in this explanation from our expert.
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Wireless networking problems combining 802.11n and 802.11g APs cause
Will using both 802.11g and 802.11n access points cause problems with your wireless network? Learn from Wi-Fi expert Lisa Phifer how to ensure peaceful coexistence between old and new clients shari...
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Why haven't I received my CCNA certification? I passed the test.
Find out who to contact when your CCNA certification hasn't arrived from Cisco.
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What's the best way to prepare for the CCNA exam alone?
Find out what resources you'll need to pass the CCNA exam without taking any classes.
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Can a Layer 3 switch replace a router for WAN connections?
Learn how to use a Layer 3 switch in place of a router for WANs from a routing expert.
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How to set up a VLAN on multiple switches
Learn how to establish a VLAN over multiple routers in this response from a networking expert.
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How can I implement MAC address binding between switches?
Learn what configuration you need to implement MAC binding across switches in this expert response.
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Where is Ed Tittel's most recent network training and certification advice?
To view network training and certification expert Ed Tittel's latest advice, see his Public Profile on the IT Knowledge Exchange.
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Where is Carrie Higbie's most recent advice?
To view networking infrastructure and project management expert Carrie Higbie's latest advice, see her Public Profile on the IT Knowledge Exchange.
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Why isn't CCNA certification enough to get me hired?
Learn why CCNA certification won't guarantee you a job and what you can do to secure a position.
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What is the difference between a managed and unmanaged switch?
Our routing and switching expert explains the difference between a managed and unmanaged switch, pointing out that although a managed switch is more complex and requires skill to maintain, it offer...
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In IPv4, do private address ranges have a default subnet mask?
In this expert response, Silvia Hagen explains the relationship between private IP address range and default subnet masks. She also informs us about new address types coming up in IPv6 that will ma...
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How to implement VLAN switches across wireless LAN (WLAN) links
Learn different methods of creating virtual LANs (VLANs) on a wireless LAN (WLAN) in this expert response from Lisa Phifer.
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How can I use a Layer 3 switch for voice routing?
Learn how to use a Layer 3 switch for voice routing in this expert response from a switch expert.
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Are there 802.11n wireless antenna extenders to boost outdoor signal?
Learn how to increase Wi-Fi range when multipath reflections aren't enough in this advice from our wireless networking expert.
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What does a QM FSM error signify on a VPN Concentrator?
Learn how to solve a QM FSM error when working on a LAN-to-LAN VPN from a network security expert.
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How does WiMAX compare to other wireless broadband services?
Learn about WiMAX and similar WAN technologies, such as 3g, in an expert response from Lisa Phifer.
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What training do I need for a career in network administration?
Find out what certifications you'll need for a job as a network administrator.
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How to block porn with ISA-server firewalls
Learn how to block unwanted content, including dangerous messengers and porn, from your server.
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Pros and cons of integrated appliances
Integrated appliances incorporate storage, processing and networking into one single product. But are they always a good choice?
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Provisioning IT services with the cloud
Using public cloud services requires diligent enterprise IT management of the cloud provider to make it a success.
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Should you ever not use a firewall?
There are many new network security devices on the market today. Expert Chris Partsenidis opines on whether these can replace firewalls.
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