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Can not ping NetBIOS name? RRS feed

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    Hi,

    We have several servers with very long Computer Name like sqlserver2-it-sa-conso.com, so the NetBIOS name should be sqlserver2-it-s (the prior 15 characters of computer name). I can ping both computer name and NetBIOS name in some servers, but can only ping computer name in some other servers. I am curious why I cannot ping NetBIOS as well? What is required to do if we need to access the server via NetBIOS?

    Thanks in advance.

    Alex Feng | SQL Server DBA, ALIYUN.COM
    My Blog | MCTS: SQL Server 2008, Implementation and Maintenance
    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    Monday, October 17, 2011 3:32 AM

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      Well the first thing to check is that they actually have Netbios over TCP/IP enabled!

      The next thing is, are they in the same IP subnet? Routers usually block LAN broadcasts, and Netbios naming relies on that. In a routed network you need WINS (and at least one DC) to browse across a routed network. Netbios name resolution is an NT legacy system and relies on LAN broadcasts.

     

    Bill
    Monday, October 17, 2011 5:21 AM

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      Well the first thing to check is that they actually have Netbios over TCP/IP enabled!

      The next thing is, are they in the same IP subnet? Routers usually block LAN broadcasts, and Netbios naming relies on that. In a routed network you need WINS (and at least one DC) to browse across a routed network. Netbios name resolution is an NT legacy system and relies on LAN broadcasts.

     

    Bill
    Monday, October 17, 2011 5:21 AM
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    http://support.microsoft.com/kb/323388

    this link may help you

    Darshana Jayathilake
    Monday, October 17, 2011 10:57 AM
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    Hi Bill,

    NetBIOS over TCP/IP is not enabled, and these two servers are not in the same subnet. We try to not use NetBIOS and use ComputerName/IP Address instead since NetBIOS name resolution is an NT legacy functionality. Thanks very much for your support.

    Alex Feng | SQL Server DBA, ALIYUN.COM
    My Blog | MCTS: SQL Server 2008, Implementation and Maintenance
    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    Tuesday, October 18, 2011 1:50 AM