Network Security Best Practices and Products

  • November 08, 2005 08 Nov'05

    Sniffer updates nothing to sneeze at

    To prove the company is back, Network General this week announced enhancements to its Sniffer line, adding application performance analysis to its network monitoring tools.

  • November 07, 2005 07 Nov'05

    New bot may threaten Cisco routers

    The network-aware bot spreads via unpatched Windows flaws and can scope out Cisco routers running vulnerable Telnet or HTTP servers. Separately, the networking giant has fixed a problem with its IPS configuration software.

  • October 26, 2005 26 Oct'05

    What you don't know can hurt you

    One industry observer warns enterprises of the dangers of being unwary or unprepared for potential cyber-attacks.

  • October 18, 2005 18 Oct'05

    Advancement to Cisco's NAC framework boosts security in LAN, wireless space

    The networking giant today announced additions to its security framework, including support for the company's popular Catalyst switches and wireless services.

  • October 10, 2005 10 Oct'05

    Analysts: 3Com trying to woo enterprises with new ad campaign

    Following strategic missteps and profitability woes, 3Com hopes a new ad campaign will remind enterprises that Cisco and HP ProCurve aren't the only vendors in town.

  • October 05, 2005 05 Oct'05

    Cisco slips in LAN switch value rating, excels overall

    A recent survey shows more organizations are dissatisfied with the cost and value of Cisco's LAN switches, while a number of competitors may be gaining ground.

  • October 04, 2005 04 Oct'05

    Cisco Spotlight Series: Service with a smile

    Gary Moore couldn't be prouder. During the past four years, the Cisco Systems Inc. senior vice president has transformed the networking giant's advanced services group from an organization that helps fix products to one that addresses what Cisco ...

  • September 26, 2005 26 Sep'05

    Questions abound on ProCurve's strategy, future

    ProCurve says it's business as usual, but speculation that HP's networking group is up for sale has caused some to wonder what the future may hold for ProCurve's products and customers.

  • September 26, 2005 26 Sep'05

    HP strengthens its core

    Change may be in the air at Hewlett-Packard, but its ProCurve networking group is still working to chip away at Cisco Systems with new core switches and management modules.

  • September 22, 2005 22 Sep'05

    Commoditization or integration?

    Is the network being commoditized? Editor Susan Fogarty offers her view on the issue.

  • September 08, 2005 08 Sep'05

    Cisco Spotlight Series: The need for speed

    Despite the growth in networking segments like wireless, IP voice and application networking, what has driven the industry from its earliest days is the basic need to transport ever-growing amounts of data from one point to another.

    At Cisco ...

  • August 23, 2005 23 Aug'05

    A layered approach to network security

    With network threats on the rise, one company is using a layered approach -- antivirus, antispyware and special QoS devices -- to ward off outbreaks like Zotob.

  • August 17, 2005 17 Aug'05

    Frame relay still viable for many networks

    Once a product or technology is labeled "mature," that usually means its days are numbered. Typically, it's just a matter of time until something newer, faster and better relegates it to the scrap heap. But in the case of frame relay, that may not ...

  • August 15, 2005 15 Aug'05

    When your vendor goes down in flames

    One fire department loves its Proxim wireless videoconferencing system. However, now that Proxim is no more, it raises the question: Is sticking with a bankrupt vendor's gear an unacceptable risk?

  • August 09, 2005 09 Aug'05

    Cisco Spotlight Series: Bridging networks and applications

    CEO John Chambers says Cisco Systems Inc. hasn't taken enough risks in recent years. If that's true, then its Application-Oriented ...

  • August 04, 2005 04 Aug'05

    Is a U.S. Internet blackout possible?

    A fault in Pakistan's fiber optic cable crippled its Internet access for 12 days. Could something similar happen in the U.S.? Experts discuss the possibilities and how companies should prepare.

  • July 14, 2005 14 Jul'05

    Chapter of the Week - July 2005

    This month our featured chapter downloads compliment our July Theme Month on IPv6. You'll find chapters focused on IPv6 to help you stay ahead of the curve.

  • July 06, 2005 06 Jul'05

    Is IPsec on borrowed time?

    IT professionals say SSL VPN connections are easier to secure and manage than their IPsec counterparts. But don't count IPsec out just yet.

  • June 29, 2005 29 Jun'05

    Packets that predict the future

    ClearSight says its new Packet Generator not only troubleshoots today's network problems, but can also identify future issues with infrastructure components prior to implementation.

  • June 28, 2005 28 Jun'05

    Can unified branch services rival Cisco?

    While some products offer similar functions, one analyst suggests looking under the hood for an emerging type of device that defies the boundaries of all current categories.

  • June 23, 2005 23 Jun'05

    Cisco gets aggressive on emerging technologies

    The networking giant is ramping up its "emerging" technology plans, intending to release cutting-edge wares every few months for the next year.

  • June 22, 2005 22 Jun'05

    Cisco claims role of application interpreter

    Cisco released more detail Tuesday about its application-oriented networking initiative, which could shift the burden of application integration from middleware to the network.

  • June 20, 2005 20 Jun'05

    Vendors look to fuse wired, wireless networks

    As wireless networking vendors strive to integrate wired and wireless networks, Colubris has unveiled a product family that leverages its new vision for network unification.

  • June 07, 2005 07 Jun'05

    HP's core switch may live a shorter life

    Hewlett-Packard has updated several areas of its enterprise networking portfolio, but a strategy change by an OEM partner may mean a shorter life span for its new core switch.

  • June 06, 2005 06 Jun'05

    New enterprise gear may be 3Com's last chance

    The vendor is releasing a plethora of switching, security and management gear for large organizations, and industry observers say the products could be 3Com's last best chance for survival in the enterprise market.

  • May 31, 2005 31 May'05

    IDC sees bright future for network consulting

    IDC forecasts that the worldwide network consulting and integration market will enjoy steady growth during the next five years. The Framingham, Mass.-based research firm said the market will grow from $24.2 billion in 2004 to $35.8 billion in 2009....

  • May 17, 2005 17 May'05's Cisco Spotlight Series is your window into the executive suite at Cisco Systems. Each month we'll bring you an exclusive interview with a top Cisco executive.

  • May 16, 2005 16 May'05's special coverage of Interop 2005

    If you missed our coverage of Interop 2005 and couldn't make it to Vegas, we've gathered all our articles for you in one place.

  • May 05, 2005 05 May'05

    Preparing for the CISSP exam

    Get a list of resources to help you prepare for the CISSP exam from your peers and experts in ITKnowledge Exchange.

  • May 04, 2005 04 May'05

    Interop 2005: Kriens articulates opportunities within natural boundaries

    In his Interop keynote, the Juniper CEO endorses industry collaboration and believes in multivendor networks, but some wonder if Kriens just wants to minimize the competition.

  • May 02, 2005 02 May'05

    Cisco brings multifunction router to the masses

    Announced this morning at Interop, Cisco's new integrated services routers enable more organizations to afford routers offering services such as security and QoS at wire speed.

  • April 21, 2005 21 Apr'05

    Industry welcomes next-gen TLS VPN

    Despite being a slow starter, the TLS protocol is taking over for SSL as the de facto VPN technology. Experts offer insight into the benefits of TLS and how it's changing network security.

  • April 11, 2005 11 Apr'05

    When router management is your worst nightmare

    Michael W. Lucas is a network engineer with decades of experience in corporate networks. Recently, Lucas authored Cisco Routers for the Desperate, which he said is "designed to be read once, and then left on top of the router until something breaks....

  • April 07, 2005 07 Apr'05

    CA to acquire Concord Communications

    With its $330 million acquisition of Concord Communications, experts say Computer Associates reestablishes itself as a competitive threat in the network management software market.

  • April 04, 2005 04 Apr'05

    Switch line offer Fast Ethernet today, GigE tomorrow

    Alcatel's new Fast Ethernet switches, which morph from Fast Ethernet to Gigabit Ethernet, allow businesses to prepare -- but not pay -- for tomorrow's speeds today.

  • March 30, 2005 30 Mar'05

    Network management outside the cocoon

    Evolution is inherent to all IT disciplines. Inertia is simply antithetical to the very concept of technology, and network management is no exception. As business needs create new demands, network managers are forced to adapt to keep pace.


  • March 29, 2005 29 Mar'05

    Gearing up for next generation of SSL VPNs

    This week Permeo debuts a Layer 5 SSL VPN, and one industry observer says it signifies a new generation of more mature, manageable, secure virtual private networking products.

  • March 28, 2005 28 Mar'05

    New switch targets data center aggregation

    Leveraging its success with Google and other high-profile customers, Force10 is launching a new 10 GigE data center aggregation switch that offers line rate switching at speeds up to 192 Gbps.

  • March 24, 2005 24 Mar'05

    Interoperability, thin APs to grow WLAN market

    A new IDC research report shows that the enterprise WLAN market was down marginally last quarter, but tight competition could mean more interoperability for customers.

  • March 15, 2005 15 Mar'05

    3Com jabs at competitors with new terabit switches

    With a new line of terabit switches, 3Com is not only packing more performance punch in its fight for the high-end switching market, but it's also using scalability to jab at Cisco, Extreme and Force10.

  • March 14, 2005 14 Mar'05

    Authentication tops list of teleworking concerns

    Authentication and reliability are the top concerns for network admins setting up teleworker VPNs, according to Sage Research. It also says one vendor in particular is dominating the market.

  • March 07, 2005 07 Mar'05

    TAP-dancing into GigE monitoring

    As more companies turn to Gigabit Ethernet on the desktop, Network Instruments taps into the network TAPs market by guaranteeing high-volume data capture and link performance.

  • February 28, 2005 28 Feb'05

    Price-slashing could shake up WAN appliance market

    One analyst says the low price of one new large-circuit WAN application traffic management device will soon cause a ripple effect of slashed prices in the market.

  • February 22, 2005 22 Feb'05

    Blind network pros now have certifications in sight

    Thanks to one university's groundbreaking program, visually impaired networking pros have the chance to earn their Cisco Certified Network Associate certifications.

  • February 15, 2005 15 Feb'05

    Sniffer update has a nose for data capture

    The company behind Sniffer offers an updated network performance tool, showing that the venerable packet analysis product could be poised for new life.

  • February 08, 2005 08 Feb'05

    VoIP to boost sluggish router market

    In-Stat/MDR says the market for high-end enterprise routers is mature, but one expert says a migration to VoIP will spur significant growth.

  • January 21, 2005 21 Jan'05

    Top 10 networking terms of '04

    Would you like to know what networking terminology your peers have been searching for the most in 2004? Curious? We were too. Check out our top 10 searched networking terms.

  • January 17, 2005 17 Jan'05

    AlterPoint offers device management 'spell-checking'

    AlterPoint's updated device management suite helps network admins avoid easy-to-make manual errors. Experts say it's a feature that helps the vendor stand out from the crowd.

  • January 13, 2005 13 Jan'05

    Update: Cisco to acquire Airespace for $450 million

    Cisco confirms the long-rumored acquisition, looking to shore up its WLAN product line. However, one expert questions how the companies and their products will mesh.

  • January 10, 2005 10 Jan'05

    Extreme switch aims to cut out the middleman

    One analyst says the vendor's new Aspen line of edge switches hammers the competition with core-quality performance, but Extreme's new two-tier networking paradigm may not be an easy sell.

  • December 23, 2004 23 Dec'04

    The security risks of VoIP

    Increasing standardization and prevalence means VoIP will likely be a growing target for attacks. There are ways to keep an enterprise safe, but new technology will soon mean new threats.

  • December 20, 2004 20 Dec'04

    Expert Chris Partsenidis: VoIP remains strong; The year of Bluetooth

    Chris shares his predictions for 2005 and believes VoIP remains steady, Bluetooth has its year and wireless networking replace wired networks at a much faster pace.

  • December 09, 2004 09 Dec'04

    Siemens to acquire Chantry Networks

    A Chantry executive says customers will gain access to more services and that no jobs will be lost, but an analyst believes WLAN startups that aren't aligned with larger vendors could be in danger.

  • December 08, 2004 08 Dec'04

    Strix spins out mesh for the great outdoors

    Strix Systems has released a mesh networking product line designed for outdoor use, and one California city explains how it's using the technology to build a public access Wi-Fi network.

  • December 07, 2004 07 Dec'04

    HP plans to 'flatten' the network core

    HP not only previews next year's new family of 10 GigE stackables, but also offers a glimpse at its new strategy that emphasizes edge intelligence and eliminates redundant functionality in the network core.

  • December 02, 2004 02 Dec'04

    Opsware to acquire Rendition Networks

    Opsware is purchasing device configuration specialist Rendition Networks for $33 million in cash and stock, a sign that market activity could be picking up as companies look to reduce configuration errors.

  • November 23, 2004 23 Nov'04

    Demand to grow for IP address management devices

    With a growing number of attacks targeting the DNS, one research firm explains why demand for appliances that manage IP addresses will grow in the coming years.

  • November 11, 2004 11 Nov'04

    Cisco employs AirDefense to monitor WLAN airwaves

    Cisco has partnered with AirDefense to make it easier for enterprises to monitor for wireless LAN attacks and rogue access points.

  • November 04, 2004 04 Nov'04

    VoIP experts savor SIP's potential

    Panelists at the Next Generation Networks conference were bullish on SIP's capabilities and its future, while one of Cisco's top strategists explained why it has delayed end-to-end SIP support in CallManager.

  • October 28, 2004 28 Oct'04

    Expert claims Wi-Fi is far from dead

    Fixed wireless broadband is on the rise, and WiMax, the standardized version of fixed wireless broadband, will be available in some areas this year. With a theoretical range of 30 miles and a throughput of 72 Mbps, 802.16e-based chipsets are ...

  • October 21, 2004 21 Oct'04

    Experts: Vendors 'lying' about VoIP cost savings

    Though vendors often promise that VoIP will lead to immediate and drastic cost savings, analysts at this week's VON Conference & Expo said, in reality, the short-term costs can be enormous.

  • October 20, 2004 20 Oct'04

    Alcatel's new switches styled for convergence

    Alcatel hopes to boost its midmarket presence with new convergence gear, but with plenty of competition one expert says before the company can find customers, it must find itself.

  • October 19, 2004 19 Oct'04

    Is offshore outsourcing worth the loss of IT jobs?

    IT executives and outsourcing experts debate the pros and cons of offshoring -- are the losses worth the gains?

  • October 14, 2004 14 Oct'04

    Cisco, IBM team up on end-point security

    The vendors are enhancing end-point security to help their joint customers keep networks virus-free, but one expert says only Cisco shops running Tivoli can benefit.

  • October 12, 2004 12 Oct'04

    WLAN and VoIP: A match made in heaven?

    Marrying wireless LAN and VoIP technology isn't easy, but one expert says that with enough effort and expertise, they can live a long, happy life together. However, one admin isn't so sure.

  • October 05, 2004 05 Oct'04

    SIP promises sweet taste of interoperability

    While some are disappointed that Session Initiation Protocol hasn't spawned more interoperable voice products, experts explain how SIP-based gear will soon unite voice, video and presence on the network.

  • September 28, 2004 28 Sep'04

    Colubris launches Wi-Fi QoS

    Colubris Networks has released quality of service software for its wireless LAN system that makes it possible to maintain a business-class voice over Wi-Fi implementation. One expert says it's a harbinger of things to come.

  • September 21, 2004 21 Sep'04

    Distributing more data without more WAN

    Using a software-based content distribution system that was 1/10th the price of a hardware-based Cisco product, a financial services firm found a way to distribute large files over the WAN without buying extra bandwidth.

  • September 16, 2004 16 Sep'04

    End-point vendors gain from slow Cisco strategy

    Cisco promises that its NAC strategy will soon be the best way to assess network device vulnerability, but until it's completed in 2005, other vendors are stepping up to fill the void.

  • September 13, 2004 13 Sep'04

    Cisco targets SMBs with VoIP-friendly routers

    When they debut tomorrow, Cisco's new line of speedy small office routers will be able to support VoIP deployments without bogging down. It's the latest move in an all-in-one device strategy that Cisco hopes will keep it a step ahead of its ...

  • September 09, 2004 09 Sep'04

    Cooldown expected for firewall market

    Firewalls were hot last year, but research shows the standalone market is cooling off as other types of network devices add more security features.

  • September 08, 2004 08 Sep'04

    'Wi-Fi on steroids:' WiMax inches closer to devices

    Intel Corp. announced Tuesday that is it sending samples of its WiMax wireless chip to select customers. Intel's "Rosedale" chip, based on the WiMax wireless broadband technology, is expected to be the first "system on a chip" to support the 802.16 ...

  • September 07, 2004 07 Sep'04

    Avoiding 802.11b/g traffic jams

    One vendor believes it can keep 802.11b clients from slowing traffic on 802.11g networks, but News Writer Jim Rendon wonders if anyone was losing sleep in the first place.

  • September 01, 2004 01 Sep'04

    What is a virtual private network (VPN)?

    Confused about what a virtual private network does? Start here, and then proceed through our links below.

  • August 12, 2004 12 Aug'04

    Configuration and change management defined

    Not sure what exactly configuration and change management are? You're not alone. Here's our concise definition.

  • August 05, 2004 05 Aug'04

    Cisco defends NAC security strategy

    Networking market leader Cisco Systems Inc. wants to fundamentally change network security. While security devices have long been part of the network edge, Cisco is turning that model on its head with its self-defending network strategy by ...

  • August 04, 2004 04 Aug'04

    Wireless LAN planning -- 5 critical steps

    Our guide walks you through the five most important developments in wireless LANs and offers guidelines for product and technology selection. We'll help you avoid potential pitfalls to ensure that your wireless LAN implementation is successful from ...

  • August 02, 2004 02 Aug'04

    VPN market makes room for IPsec and SSL

    IPsec VPNs are entrenched in many enterprises, but easier-to-use SSL VPNs could soon be just as popular. Experts explain where each type of VPN works best.

  • July 27, 2004 27 Jul'04

    Bursting the bubble around enterprise networks

    Disruptive technologies like VoIP and wireless broadband along with more advanced users are forcing network managers out of their comfort zones and into uncharted territory, according to an analyst at Burton Group's Catalyst Conference.

  • July 22, 2004 22 Jul'04

    IPv6 offers more than extra addresses

    Even though the U.S. isn't likely to run out of Internet addresses anytime soon, one expert at the Burton Group Catalyst Conference said there are many good reasons to use IPv6.

  • July 15, 2004 15 Jul'04

    Security word search answer key

    Security word search answer key

  • July 13, 2004 13 Jul'04

    Security word search

    Test your security knowledge by having some fun with this word search and enter our contest for your chance to win a free security book.

  • July 12, 2004 12 Jul'04

    With 802.11i, new standard means new problems

    The new 802.11i standard is expected to make wireless LANs more secure, but authentication interoperability problems could make it harder to run multi-vendor systems.

  • July 07, 2004 07 Jul'04

    Cisco's self-defending networks progress, slowly

    Cisco Systems Inc. has been in the process of folding security into its network infrastructure for some time. The initiative, known as the self-defending network strategy, is a part of Cisco's overall push to add more intelligence into the network. ...

  • June 29, 2004 29 Jun'04

    Demystifying fixed wireless

    A number of fixed wireless broadband services are emerging as low-cost connectivity options for businesses, and that's why many believe the market is likely to boom over the next five years. According to a report from Oyster Bay, N.Y.- based ABI ...

  • June 23, 2004 23 Jun'04

    Can 3Com bounce back?

    After losing market share and floundering in the enterprise market, 3Com Corp. is attempting a comeback. The Marlborough, Mass.-based networking vendor still has strong brand recognition and technological know-how. But can it effectively compete ...

  • June 21, 2004 21 Jun'04

    RouteScience, IBM partner for better app performance

    RouteScience is hoping its new partnership with IBM will not only improve application performance for Big Blue's server customers, but also build its own customer base while making its software easier to deploy.

  • June 17, 2004 17 Jun'04

    Renegotiate with providers before it's too late

    It's time to dust off those old service provider contracts and start hunting for bargains. According to a recent brief by the Stamford, Conn.-based research firm, Gartner Inc., network service providers are about to engage in another round of price ...

  • June 16, 2004 16 Jun'04

    Containment is essential for combating attacks

    Because your cyberdefenses are bound to be compromised eventually, your security strategy must include processes and technologies to contain the damage.

  • May 26, 2004 26 May'04

    Sprint: Success hinges on converged network

    A top Sprint executive says the company is combining its various networks in order to offer users a consistent experience, regardless of where they are or how they connect.

  • May 18, 2004 18 May'04

    Making sense of performance management products

    The network seems fine, but Oracle keeps timing out and your CRM package is extremely sluggish. Application performance problems plague many networks, but can be difficult to diagnose.

  • May 12, 2004 12 May'04

    What accounting woes? Nortel exec keys on convergence

    In a surprisingly positive keynote at N+I, a top Nortel executive says the troubled networking company is focused on developing convergence technology, and not on the accounting fiasco that took down its CEO.

  • May 05, 2004 05 May'04

    Is convergence inevitable?

    The key theme of last week's Enterprise Networks conference in Boston -- convergence -- made me think of one of my favorite (though far fetched) movie scenes of all time.

  • April 26, 2004 26 Apr'04

    Engineering VoIP savings with bandwidth management

    After an engineering firm discovered that VoIP traffic bogged down its network, it used a traffic management system from Packeteer to not only improve voice call quality, but also to avoid buying extra bandwidth.

  • April 21, 2004 21 Apr'04

    IDC: Networking 'disruptions' will drive spending

    An IDC analyst says disruptive technologies like Wi-Fi, VoIP and utility computing will drive network spending, but only in certain industries where business demands justify the investment.

  • April 19, 2004 19 Apr'04

    Expand Networks offers WAN conservation appliances

    Expand Networks has announced a new roster of WAN optimization appliances, intended to help remote offices avoid bottlenecks caused by enterprise applications.

  • April 19, 2004 19 Apr'04

    Network Device Management

    This chapter excerpt focuses on device management and the role it plays in network configuration management.

  • April 19, 2004 19 Apr'04

    Are mobile devices opening the network perimeter?

    A Burton Group report suggests that enterprise networks -- and the data they safeguard -- may be at risk because of unsecured mobile devices.

  • April 15, 2004 15 Apr'04

    Cisco looks to dominate Web conferencing

    If the growing interest among enterprises in providing employees and partners with information regardless of their location is any indication, then the remote collaboration market is set to take off. One key indicator of the market's maturity is a ...

  • April 12, 2004 12 Apr'04

    Adtran deals itself into converged device game

    Adtran is taking on an established market with a new line of stand-alone switches and converged switch/routers, but one expert said the company could become an attractive low-end Cisco alternative.