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Can't ping particular machines through VPN

  • 30-09-2009 4:19pm
    #1
    onechewy
    Closed Accounts Posts: 188 ✭✭


    Hello.

    Hopefully someone might be able to spot something for me here... I am somewhat flummoxed.

    We have a large amount of Dell Precision 690's that are all on the same ghosted build. We VPN into our network using Cisco VPN Client V4.8. We can't ping any of the 690's that have this particular build. We can ping alright from the network, but not when connected in through VPN. We can ping other machines on the network that have an older build. I have cross-checked the installed software between the new build and the old build.. and other than Windows updates, I see anything that might be causing the problem... the machines are in various places around the office and so would be using different switches. Does anyone have any suggestions..? Here is the installed software anyway:

    Thanks
    INSTALLED SOFTWARE (160) - DUB0202 - 30/09/2009 12:36:44

    AC COM (API & Excel add-in) 1.2 Ver: 1.2
    AC Desktop 2.7.45 Ver: 2.7.45
    Adobe Acrobat 7.0 Standard Ver: 7.0.0 Installed: 16/02/2009
    Adobe Acrobat 7.0 Standard Ver: 7.0.0 Installed: 16/02/2009
    Adobe Flash Player 10 ActiveX Ver: 10.0.12.36
    Adobe Flash Player 10 Plugin Ver: 10.0.12.36
    Adobe Shockwave Player 11 Ver: 11
    ATI - Software Uninstall Utility Ver: 6.14.10.1014
    ATI Control Panel Ver: 6.14.10.5194
    ATI Display Driver Ver: 8.293-060908a-036758C-ATI
    Axosoft OnTime 2007 Windows
    BlackBerry Desktop Software 4.7 Ver: 4.7.0.23
    BlackBerry Desktop Software 4.7 Ver: 4.7.0.23 Installed: 16/02/2009
    Broadcom Gigabit Integrated Controller Ver: 10.50.03 Installed: 16/02/2009
    Broadcom Management Programs Ver: 10.20.03 Installed: 16/02/2009
    CCleaner (remove only)
    CODA XMLi Ver: 10.10.0000 Installed: 18/02/2009
    CODA XMLi Ver: 10.10.0000 Installed: 18/02/2009
    CODA-Financials Client Ver: 10.10.0000 Installed: 18/02/2009
    CODA-Financials Client Ver: 10.10.0000 Installed: 18/02/2009
    Compatibility Pack for the 2007 Office system Ver: 12.0.6425.1000 Installed: 05/08/2009
    Crash Analysis Tool Ver: 1.00.0001 Installed: 16/02/2009
    Critical Update for Windows Media Player 11 (KB959772) Installed: 05/08/2009
    DAEMON Tools Toolbar Ver: 1.0.8.0552
    DeepBurner v1.9.0.228 Installed: 08/05/2009
    Defraggler (remove only)
    Dell SAS RAID Storage Manager v1.16-00 Ver: 1.16.00 Installed: 16/02/2009
    Google Toolbar for Internet Explorer
    High Definition Audio Driver Package - KB835221 Ver: 20040219.000000
    Hotfix for Microsoft .NET Framework 3.5 SP1 (KB953595) Ver: 1
    Hotfix for Microsoft .NET Framework 3.5 SP1 (KB958484) Ver: 1
    Hotfix for Windows Media Format 11 SDK (KB929399) Installed: 18/02/2009
    Hotfix for Windows Media Player 11 (KB939683) Installed: 18/02/2009
    Hotfix for Windows XP (KB952287) Ver: 1 Installed: 17/02/2009
    Hotfix for Windows XP (KB954550-v5) Ver: 5 Installed: 17/02/2009
    Hotfix for Windows XP (KB961118) Ver: 1 Installed: 05/08/2009
    Hotfix for Windows XP (KB970653-v3) Ver: 3 Installed: 28/08/2009
    HyperSnap 6 Ver: 5
    IBM Lotus Sametime Connect 7.5.1 Ver: 7.5.70625 Installed: 18/02/2009
    ImgBurn Ver: 2.5.0.0 Installed: 05/08/2009
    J2SE Runtime Environment 5.0 Update 18 Ver: 1.5.0.180 Installed: 06/08/2009
    Java 2 Runtime Environment, SE v1.4.2_14 Ver: 1.4.2_14 Installed: 16/02/2009
    Java 2 Runtime Environment, SE v1.4.2_18 Ver: 1.4.2_18 Installed: 16/02/2009
    Logitech MouseWare 9.79.1
    Lotus Notes 8.0.2 Ver: 8.02.8221 Installed: 07/09/2009
    McAfee Agent Ver: 4.0.0.1421 Installed: 05/08/2009
    McAfee VirusScan Enterprise Ver: 8.6.0 Installed: 05/08/2009
    MetaFrame Presentation Server Client Ver: 9.200.44376 Installed: 16/02/2009
    Microsoft .NET Framework 1.1
    Microsoft .NET Framework 1.1 Ver: 1.1.4322 Installed: 17/02/2009
    Microsoft .NET Framework 1.1 Hotfix (KB928366)
    Microsoft .NET Framework 2.0 Service Pack 2 Ver: 2.2.30729 Installed: 17/02/2009
    Microsoft .NET Framework 3.0 Service Pack 2 Ver: 3.2.30729 Installed: 17/02/2009
    Microsoft .NET Framework 3.5 SP1
    Microsoft .NET Framework 3.5 SP1 Ver: 3.5.30729 Installed: 05/08/2009
    Microsoft Base Smart Card Cryptographic Service Provider Package
    Microsoft Compression Client Pack 1.0 for Windows XP Ver: 1 Installed: 18/02/2009
    Microsoft Office 2003 Resource Kit Ver: 11.0.5614.0 Installed: 18/02/2009
    Microsoft Office 2003 Web Components Ver: 11.0.8173.0 Installed: 17/08/2009
    Microsoft Office PowerPoint 2003 Template Pack 1 Ver: 11.0.5614.0 Installed: 18/02/2009
    Microsoft Office PowerPoint 2003 Template Pack 2 Ver: 11.0.5614.0 Installed: 18/02/2009
    Microsoft Office PowerPoint 2003 Template Pack 3 Ver: 11.0.5614.0 Installed: 18/02/2009
    Microsoft Office Professional Edition 2003 Ver: 11.0.8173.0 Installed: 10/09/2009
    Microsoft Office Project Professional 2003 Ver: 11.0.8173.0 Installed: 17/08/2009
    Microsoft Office Visio Professional 2003 Ver: 11.0.8173.0 Installed: 05/08/2009
    Microsoft Office Visio Viewer 2007 Ver: 12.0.6425.1000 Installed: 05/08/2009
    Microsoft redistributable runtime DLLs VS2005 SP1(x86) Ver: 8.0.50727.762 Installed: 18/02/2009
    Microsoft Silverlight Ver: 3.0.40818.0 Installed: 10/09/2009
    Microsoft SQL Server 2005 Backward compatibility Ver: 8.05.1054 Installed: 05/08/2009
    Microsoft SQL Server Native Client Ver: 9.00.3042.00 Installed: 18/02/2009
    Microsoft SQL Server Setup Support Files (English) Ver: 9.00.1399.06 Installed: 05/08/2009
    Microsoft User-Mode Driver Framework Feature Pack 1.0 Installed: 18/02/2009
    Mozilla Firefox (3.0.14) Ver: 3.0.14 (en-GB)
    MSXML 4.0 SP2 (KB954430) Ver: 4.20.9870.0 Installed: 18/02/2009
    MSXML 6.0 Parser Ver: 6.00.3883.8 Installed: 05/08/2009
    NetSupport Manager Ver: 10.50.0001 Installed: 18/02/2009
    SAP Business Explorer Ver: 7.10
    SAP GUI 7.10 Ver: 7.10 Compilation 2
    SAPSetup Automatic Workstation Update Service
    Security Update for Windows Media Player (KB952069) Installed: 17/02/2009
    Security Update for Windows Media Player (KB968816) Installed: 10/09/2009
    Security Update for Windows Media Player (KB973540) Installed: 17/08/2009
    Security Update for Windows Media Player 11 (KB936782) Installed: 18/02/2009
    Security Update for Windows Media Player 11 (KB954154) Installed: 18/02/2009
    Security Update for Windows XP (KB923561) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB938464) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB941569) Installed: 18/02/2009
    Security Update for Windows XP (KB946648) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB950760) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB950762) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB950974) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB951066) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB951376-v2) Ver: 2 Installed: 17/02/2009
    Security Update for Windows XP (KB951698) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB951748) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB952004) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB952954) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB954211) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB954459) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB954600) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB955069) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB956572) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB956744) Ver: 1 Installed: 17/08/2009
    Security Update for Windows XP (KB956802) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB956803) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB956841) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB956844) Ver: 1 Installed: 10/09/2009
    Security Update for Windows XP (KB957097) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB958215) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB958644) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB958687) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB959426) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB960225) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB960714) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB960715) Ver: 1 Installed: 17/02/2009
    Security Update for Windows XP (KB960803) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB960859) Ver: 1 Installed: 17/08/2009
    Security Update for Windows XP (KB961371) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB961501) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB968537) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB970238) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB971557) Ver: 1 Installed: 17/08/2009
    Security Update for Windows XP (KB971633) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB971657) Ver: 1 Installed: 17/08/2009
    Security Update for Windows XP (KB971961) Ver: 1 Installed: 10/09/2009
    Security Update for Windows XP (KB972260) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB973346) Ver: 1 Installed: 05/08/2009
    Security Update for Windows XP (KB973354) Ver: 1 Installed: 17/08/2009
    Security Update for Windows XP (KB973507) Ver: 1 Installed: 17/08/2009
    Security Update for Windows XP (KB973869) Ver: 1 Installed: 17/08/2009
    Shockwave Director 11.0.3
    SigmaTel Audio Ver: 5.10.4803.0 Installed: 16/02/2009
    Snapform Viewer 1.5.34
    TaskSwitchXP Ver: 2.0.11
    Update for Microsoft .NET Framework 3.5 SP1 (KB963707) Ver: 1
    Update for Windows XP (KB898461) Ver: 1
    Update for Windows XP (KB943729) Installed: 05/08/2009
    Update for Windows XP (KB951978) Ver: 1 Installed: 17/02/2009
    Update for Windows XP (KB955839) Ver: 1 Installed: 17/02/2009
    Update for Windows XP (KB967715) Ver: 1 Installed: 05/08/2009
    Update for Windows XP (KB968389) Ver: 1 Installed: 17/08/2009
    Update for Windows XP (KB973815) Ver: 1 Installed: 17/08/2009
    VideoLAN VLC media player 0.8.6i Ver: 0.8.6i
    VMware Infrastructure Client 2.5 Ver: 2.5.0.64218 Installed: 18/02/2009
    VMware Infrastructure Update Ver: 2.5.0.64218 Installed: 18/02/2009
    VMware Player Ver: 2.0.4.2658 Installed: 18/02/2009
    WebFldrs XP Ver: 9.50.7523 Installed: 16/02/2009
    Windows Defender Ver: 1.1.1593.21 Installed: 16/02/2009
    Windows Genuine Advantage Notifications (KB905474) Ver: 1.8.0031.9 Installed: 17/02/2009
    Windows Genuine Advantage Validation Tool (KB892130) Installed: 17/02/2009
    Windows Genuine Advantage Validation Tool (KB892130) Ver: 1.7.0069.2
    Windows Media Format 11 runtime
    Windows Media Format 11 runtime Installed: 18/02/2009
    Windows Media Player 11
    Windows Media Player 11 Installed: 18/02/2009
    Windows PowerShell(TM) 1.0 Ver: 2 Installed: 05/08/2009
    Winmail Reader 1.1.12
    WinZip 11.1 Ver: 11.1.7466 Installed: 16/02/2009
    ZPDF
    Zune Desktop Theme Ver: 1.0.5341.0 Installed: 16/02/2009


Comments

  • #2
    FruitLover
    Registered Users, Registered Users 2 Posts: 2,534 ✭✭✭FruitLover


    Could be a local firewall issue (i.e. the systems won't allow external IPs to ping them). Check your border firewall or VPN endpoint logs to make sure the pings are getting across the VPN OK, and try running a packet sniffer on one of the hosts and see if you see the pings hitting the hosts themselves.

    Maybe try disabling any local system firewalls (e.g. Windows firewall, and bear in mind that a lot of modern AV apps contain firewalls) temporarily to see if this helps.


  • #3
    onechewy
    Closed Accounts Posts: 188 ✭✭onechewy


    Thanks for the reply fruitlover, there are no firewalls enabled on the machines themselves. I can also happily ping other machines on the network through VPN.

    Using Wireshark I can see the VPN ping hitting one of the affected machines, but no reply getting sent out. When I ping from another machine on network, (not through VPN), the ping reply gets sent out ok. I have compared the packet data of the ping from VPN (Cisco router) and the ping from network, and I can't see any difference between them.


  • #4
    FruitLover
    Registered Users, Registered Users 2 Posts: 2,534 ✭✭✭FruitLover


    Have the affected machines got a default gateway set? Can you ping out from the local hosts to the remote VPN hosts?

    Worst case, you could source-NAT inbound traffic over the VPN to a local IP, but this would be a workaround rather than a solution.


  • #5
    onechewy
    Closed Accounts Posts: 188 ✭✭onechewy


    Hi, thanks for the replies... we actually tracked down the problem to VMWare Player. The VMWare Network Adapters that were in the image didn't seem to like this particular machine hardware build. I remotely uninstalled VMWare player (we don't actually need it due to ESX implementation), and now all is good!

    I have VMWare Player installed via a ghosted build on my machine (T7400), and no problems.. so took a while to pinpoint!

    Thanks

    :)


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