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SearchNetworking: Routing and switching news, advice and technical information
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Get the latest on hardware installation, maintenance and configuration, network protocols and network addressing.
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Vyatta offers more robust open source router and security appliance
Vyatta Inc. debuts its third open source router and security networking appliance in less than nine months, edging further into the enterprise space.
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Calculating subnets for IP addresses in IPv6
Understand how subnetting in IPv6 differs from that of IPv4 and what you need to do in order to calculate the subnet of an IP address in IP version 6.
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IP addressing in IPv6
Understand the differences between network IP addressing in IPv6 and IPv4. Our expert, Silvia Hagen, explains the advantages and disadvantages of calculating IP addresses for each version.
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What environmental factors cause switch connectivity to fail?
If the power on your network's switch is fine, but the connectivity is not, ask yourself these questions posed by our switching expert to troubleshoot for environmental issues that may be causing this connection failure.
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More than 1 million DNS servers still vulnerable to Kaminsky
More than 1.3 million DNS servers are still exploitable by the Kaminsky vulnerability, according to new research from vendors Infoblox and DNSstuff.
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How to configure Cisco's 3750 Layer 3 switch for fallback IOS booting
Our switching expert explains how to configure your Cisco 3750 Layer 3 (L3) switch to automatically boot your system from the IOS kept on the TFTP server, in this response on fallback booting.
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Why are patch panels required for cabling networks?
When cabling networks, you may wonder why it's a requirement to have patch panels and why they aren't connected to switches. This expert response explains why and how they're used in a rack with multiple switches and ports.
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Can IP addresses of LANs that make up a WAN be the same?
Our networking fundamentals expert answers whether the IP addresses of different physical locations (LANs) making up a WAN can be the same address. Find out if networks with the same IP address will overlap and create routing problems, in this expert response.
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Why do we need IP security at the network layer?
Learn why IP security (IPsec) is needed at the network layer -- otherwise known as Layer 3, or L3, of the OSI model. Our enterprise networking security guru explains.
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What power supply problems do 802.11n wireless networks pose?
The power supply requirements demanded of 802.11n wireless networks won't be affordable for enterprises until the IEEE standard and supporting network hardware are approved and have caught up. Here are some options for fixing this problem while you wait for next-generation Ethernet switches and other equipment to appear.
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