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When IPV6 is enabled, cannot ping domain by FQDN RRS feed

  • Question

  • Shamelessly stolen from another group:

     

    "I have several Windows 2008 Active Directory Servers that are also DNS servers. I can ping servers in another Domain by Ip address or netbios name, but not by FQDN. I noticed there are no records in DNS for IPv6 addresses.

     

    Did I install this incorrectly? I have been a beta tester of Windows 2008 for over 6 months and just installed the released version. If I disable Ipv6, I am able to ping by FQDN. How do I make this work with ipv6?

     

    One of the programs I use makes this important for servers to be recognized by FQDN.

     

    Thanks for your help."

    ----

    This problem sounds like mine. I have 1 dc (Win2k3), and one member server (2008) which I'm trying to dcpromo. But apparently as long as IPv6 is enabled I cannot ping my domain (isites.local) from the 2008 server, and hence dcpromo fails with dns-problems.

     

    It was my understanding that if the server 2008 gets a link-local ipv6 address, then it falls back to standard asking dns through ipv4 ??

     

    Any insights on best practise? Smile

     

    /MadsD

     

     

     

    C:\>ipconfig /all

    Windows IP Configuration

       Host Name . . . . . . . . . . . . : dc1
       Primary Dns Suffix  . . . . . . . : isites.local
       Node Type . . . . . . . . . . . . : Hybrid
       IP Routing Enabled. . . . . . . . : No
       WINS Proxy Enabled. . . . . . . . : No
       DNS Suffix Search List. . . . . . : isites.local

    Ethernet adapter Local Area Connection:

       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection
       Physical Address. . . . . . . . . : 00-0C-29-C8-FA-13
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
       Link-local IPv6 Address . . . . . : fe80::f81c:3e76Big Smile551Big Smileba1%10(Preferred)
       IPv4 Address. . . . . . . . . . . : 192.168.0.5(Preferred)
       Subnet Mask . . . . . . . . . . . : 255.255.255.0
       Default Gateway . . . . . . . . . : 192.168.0.1
       DNS Servers . . . . . . . . . . . : ::1
                                           192.168.0.2
       NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter Local Area Connection* 8:

       Media State . . . . . . . . . . . : Media disconnected
       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : isatap.{7347B688-CB20-4EA9-B85F-200C5B28D
    A01}
       Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 9:

       Connection-specific DNS Suffix  . :
       Description . . . . . . . . . . . : Microsoft Tun Miniport Adapter
       Physical Address. . . . . . . . . : 02-00-54-55-4E-01
       DHCP Enabled. . . . . . . . . . . : No
       Autoconfiguration Enabled . . . . : Yes
       IPv6 Address. . . . . . . . . . . : 2001:0Big Smile5c7:a2ca:1c76:90db:aaaeBig Smile799(Pref
    erred)
       Link-local IPv6 Address . . . . . : fe80::1c76:90db:aaaeBig Smile799%16(Preferred)
       Default Gateway . . . . . . . . . : ::
       NetBIOS over Tcpip. . . . . . . . : Disabled

     

     

    C:\>ping isites
    Ping request could not find host isites. Please check the name and try again.

    C:\>ping balle

    Pinging balle [192.168.0.2] with 32 bytes of data:
    Reply from 192.168.0.2: bytes=32 time=10ms TTL=128
    Reply from 192.168.0.2: bytes=32 time=1ms TTL=128
    Reply from 192.168.0.2: bytes=32 time<1ms TTL=128
    Reply from 192.168.0.2: bytes=32 time<1ms TTL=128

    Ping statistics for 192.168.0.2:
        Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
        Minimum = 0ms, Maximum = 10ms, Average = 2ms

    C:\>ping balle.isites.local
    Ping request could not find host balle.isites.local. Please check the name and t
    ry again.

    C:\>ping isites.local
    Ping request could not find host isites.local. Please check the name and try aga
    in.

    C:\>

    Wednesday, May 7, 2008 8:25 PM

Answers

  •  

    DNS Servers . . . . . . . . . . . : ::1
                                       192.168.0.2

    ----

     

    There's my problem. For some reason, DNS-server for IPv6 has been set to localhost, hence it wouldn't fall back to IPv4 name resolution... a removal of the statically assigned IPv6 DNS address, solved the problem.

    Wednesday, May 7, 2008 10:23 PM