SQL Server is listening on both ipv4 and ipv6 ips message in errorlog

  • Hi Experts,

    I installed two node sql server cluster annd during installation I configured for both IPV4 and IPV6.

    I can see the below messages logged in sql server error log now.

    Server is listening on [ xxx.xxx.xxx.xx <ipv4> 1433].

    Server is listening on [ xxxx:xxxx:0:xxx::xxx <ipv6> 1433].

    I believe, this appears as I configured for both IPs and it just says it is listening to both correct ?

    It is normal and there will not be any connectivity issue as such is it ? Kindly advise.

    Thanks,

    San.

  • I guess you need to first understand requirement in your environment whether to go with IPV4 or newer version IPV6. you also need to understand what is the difference between these two for that following link might help you.

    http://www.webopedia.com/DidYouKnow/Internet/ipv6_ipv4_difference.html

    http://www.networkworld.com/article/2692482/ipv6/infographic-ipv4-vs-ipv6.html

    As far as IP and port number is correct there should not be any issue in connectivity.

    HTH

    ---------------------------------------------------
    "Thare are only 10 types of people in the world:
    Those who understand binary, and those who don't."

  • free_mascot (6/24/2015)


    I guess you need to first understand requirement in your environment whether to go with IPV4 or newer version IPV6. you also need to understand what is the difference between these two for that following link might help you.

    http://www.webopedia.com/DidYouKnow/Internet/ipv6_ipv4_difference.html

    http://www.networkworld.com/article/2692482/ipv6/infographic-ipv4-vs-ipv6.html

    As far as IP and port number is correct there should not be any issue in connectivity.

    HTH

    Thanks for the links, will go through it.

    Application team wanted to connect with both IPV4 and IPV6.

    Thanks,

    San.

  • Joy Smith San (6/24/2015)


    Hi Experts,

    I installed two node sql server cluster annd during installation I configured for both IPV4 and IPV6.

    I can see the below messages logged in sql server error log now.

    Server is listening on [ xxx.xxx.xxx.xx <ipv4> 1433].

    Server is listening on [ xxxx:xxxx:0:xxx::xxx <ipv6> 1433].

    I believe, this appears as I configured for both IPs and it just says it is listening to both correct ?

    It is normal and there will not be any connectivity issue as such is it ? Kindly advise.

    Thanks,

    San.

    It's just merely informing you that sql server is listening on both IPv4 and IPv6 addresses

    -----------------------------------------------------------------------------------------------------------

    "Ya can't make an omelette without breaking just a few eggs" 😉

  • Thanks Perry.

    Installed cluster first time, that too for both IPs ,hence this confusion.

    Thanks again.

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