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  • How to subnet: Subnetting calculations and shortcuts

    These subnetting shortcuts show you how to calculate a subnet mask, break down IP address classes and explains binary – great for CCNA prep and more.  Tip

  • IP address depletion hastens IPv6 adoption

    IPv4 IP address depletion is hastening the need to switch from IPv4 to IPv6. In this column, Loki Jorgenson explains where we are now in terms of IPv6 readiness and provides some insight on how much work network operators will face.  Tip

  • TCP/IP troubleshooting: A structured approach -- Using Netdiag.exe

    Limitations of the Repair feature of Windows network connections can be overcome by using Netdiag.exe, a network connectivity troubleshooting tool that is part of the Windows Support Tools. Netdiag runs a more extensive series of tests than the Repai...  Tip

  • Choosing WAN providers: Key questions to ask

    When evaluating carrier services for the WAN, it's imperative to ask some key questions regarding customer service, service-level agreements, global coverage, management and monitoring capabilities, and underlying technologies. Make sure these questi...  Tip

  • TCP/IP troubleshooting: A structured approach -- Repairing network connections

    Learn how the Repair feature works for repairing network connections on Windows platforms in this tip from the WindowsNetworking.com series on TCP/IP troubleshooting.  Tip

  • TCP/IP troubleshooting: A structured approach -- Troubleshoot routing tables

    Learn how routing tables work and how to troubleshoot routing problems in Windows-based networks in this tip courtesy of WindowsNetworking.com.  Tip

  • Network summarization -- Supernetting and wildcard masks

    Supernetting allows one routing table entry to represent an aggregation of networks. Network engineers need to understand supernetting, how to read routes received from other providers and how to create an access list that references these multiple n...  Tip

  • New gigabit standard: How fast is fast enough?

    Last June, the 10GBASE-T standard was published promising 10 Gbit operations on copper cabling. This standard was originally targeted toward data centers, but the Ethernet Alliance and IEEE are working on increasing this standard to potentially 40 or...  Tip

  • TCP/IP troubleshooting: A structured approach -- Introduction

    This tip from WindowsNetworking.com describes a structured approach for troubleshooting connectivity problems with TCP/IP networks. This is the first of a series of articles on TCP/IP troubleshooting  Tip

  • Enterprise redundancy using VRRP

    Get started using Virtual Router Redundancy Protocol (VRRP), a standard used in enterprise environments where routing redundancy is necessary for host stations. VRRP can provide additional availability to help reduce router failure on your Linux netw...  Tip

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