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DHCP DNS Dynamic Updates RRS feed

  • Question

  • DnsUpdateProxy group members are:

    An account we created (SVC_DNSUpdate)

    As well as the clustered DHCP servers

    My workstation:

    SODOLT450S.gsf.cc

    10.47.20.194

    DHCP is setup as follows

    IPv4 DNS tab:

    Enable DNS dynamic updates - always dynamically update DNS A and PTR records.

    Discard A and PTR records when lease is deleted

    Dynamically update for DHCP clients that do not request updates

    IPv4 Advanced tab – DNS dynamic update registration credentials: SVC_DNSupdate

    3 AD Domain Controllers / DNS servers (Dynamic Updates-Secure only)

    2 Separate clustered DHCP servers

    All Windows server 2012 R2

     

    Actions from my test workstation:

    Removed forward/reverse lookup records

    Removed the DHCP record

    IPCONFIG /RELEASE

    IPCONFIG /RENEW

    DHCP record is created

    DHCP log shows:

    30,03/02/17,01:53:06,DNS Update Request,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    11,03/02/17,01:53:06,Renew,10.47.20.194,SODOLT450S.gsf.cc,68F728EC2939,,3726698348,0,,,,0x4D53465420352E30,MSFT 5.0,,,,0

    31,03/02/17,02:06:09,DNS Update Failed,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,2

    30,03/02/17,02:06:09,DNS Update Request,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    32,03/02/17,03:02:06,DNS Update Successful,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    30,03/02/17,13:53:06,DNS Update Request,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    11,03/02/17,13:53:06,Renew,10.47.20.194,SODOLT450S.gsf.cc,68F728EC2939,,1396236115,0,,,,0x4D53465420352E30,MSFT 5.0,,,,0

    31,03/02/17,14:06:20,DNS Update Failed,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,2

    30,03/02/17,14:06:20,DNS Update Request,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    32,03/02/17,14:58:14,DNS Update Successful,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0 No forward/reverse record created

    Wait about two hours and the forward/reverse records are created (Owner is (SVC_DNSUpdate)

    What am I missing? Why does the initial DNS update fails?

    Could this be related to the clustered DHCP servers?

    Friday, March 3, 2017 3:52 PM

All replies

  • Hello AliSarreshteh,

    "31,03/02/17,14:06:20,DNS Update Failed,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,2" - please enable dns logging in your DNS server and see what happens at that moment.

    Regards,

    Michael

    Sunday, March 5, 2017 11:43 AM
  • Enabled DNS logging on all three DC/DNS servers and found no errors.

    See DHCP and DNS logs pertaining to that IP address.

    Interestingly enough, all the time stamps on the DNS servers are after the DHCP time stamp – they don’t match up…could it be another DNS server answering these DHCP requests?  I have checked the DNS settings in the DHCP scope/server as well as the TCP/IP settings for the DHCP server – all checked out.

    Any suggestions greatly appreciated.

    31,03/06/17,09:44:56,DNS Update Failed,10.47.20.214,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,2

    30,03/06/17,09:44:56,DNS Update Request,10.47.20.214,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    12,03/06/17,09:44:56,Release,10.47.20.214,SODOLT450S.gsf.cc,68F728EC2939,,2906528322,0,,,,,,,,,0

    31,03/06/17,09:45:05,DNS Update Failed,10.47.20.214,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,2

    30,03/06/17,09:45:05,DNS Update Request,10.47.20.214,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    10,03/06/17,09:45:05,Assign,10.47.20.214,SODOLT450S.gsf.cc,68F728EC2939,,4127638112,0,,,,0x4D53465420352E30,MSFT 5.0,,,,0

    3/6/2017 9:45:07 AM 0ED4 PACKET  0000003796AF00A0 UDP Rcv 10.47.20.214    a30e   Q [0001   D   NOERROR] A      (6)isatap(3)gsf(2)cc(0)

    3/6/2017 9:45:07 AM 0ED4 PACKET  0000003796B94080 UDP Rcv 10.47.20.214    0d79   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:07 AM 0ED4 PACKET  0000003797416070 UDP Rcv 10.47.20.214    1e5e   Q [0001   D   NOERROR] A      (15)unldziovdnckqmf(3)gsf(2)cc(0)

    3/6/2017 9:45:07 AM 0ED4 PACKET  00000037971B8240 UDP Rcv 10.47.20.214    d0d3   Q [0001   D   NOERROR] A      (12)txmpuokzvbry(3)gsf(2)cc(0)

    3/6/2017 9:45:07 AM 0ED4 PACKET  000000379697A150 UDP Rcv 10.47.20.214    262c   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:07 AM 0ED4 PACKET  0000003798396210 UDP Rcv 10.47.20.214    d770   Q [0001   D   NOERROR] A      (12)oewfmycpetdf(3)gsf(2)cc(0)

    3/6/2017 9:45:07 AM 0ED4 PACKET  0000003797740100 UDP Rcv 10.47.20.214    ef0a   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:08 AM 1084 PACKET  000000379753A150 UDP Rcv 10.47.20.214    11f3   Q [0001   D   NOERROR] A      (7)ehsqkip(3)gsf(2)cc(0)

    3/6/2017 9:45:08 AM 0ED4 PACKET  0000003796CF0120 UDP Rcv 10.47.20.214    7e11   Q [0001   D   NOERROR] A      (10)esglrzivrh(3)gsf(2)cc(0)

    3/6/2017 9:45:08 AM 0ED4 PACKET  00000037977DC1C0 UDP Rcv 10.47.20.214    d9b2   Q [0001   D   NOERROR] A      (8)forwkost(3)gsf(2)cc(0)

    3/6/2017 9:45:09 AM 0ED4 PACKET  0000003797B761B0 UDP Rcv 10.47.20.214    a30e   Q [0001   D   NOERROR] A      (6)isatap(3)gsf(2)cc(0)

    3/6/2017 9:45:09 AM 0ED4 PACKET  0000003798112130 UDP Rcv 10.47.20.214    0d79   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:09 AM 0ED4 PACKET  0000003798CBC100 UDP Rcv 10.47.20.214    d770   Q [0001   D   NOERROR] A      (12)oewfmycpetdf(3)gsf(2)cc(0)

    3/6/2017 9:45:09 AM 0ED4 PACKET  0000003798BF6110 UDP Rcv 10.47.20.214    1e5e   Q [0001   D   NOERROR] A      (15)unldziovdnckqmf(3)gsf(2)cc(0)

    3/6/2017 9:45:09 AM 0ED4 PACKET  0000003796F6A250 UDP Rcv 10.47.20.214    d0d3   Q [0001   D   NOERROR] A      (12)txmpuokzvbry(3)gsf(2)cc(0)

    3/6/2017 9:45:09 AM 0ED4 PACKET  0000003798718140 UDP Rcv 10.47.20.214    ef0a   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:09 AM 0ED4 PACKET  0000003796B8E2D0 UDP Rcv 10.47.20.214    262c   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:10 AM 0ED4 PACKET  0000003798A90240 UDP Rcv 10.47.20.214    d9b2   Q [0001   D   NOERROR] A      (8)forwkost(3)gsf(2)cc(0)

    3/6/2017 9:45:10 AM 0ED4 PACKET  00000037990741E0 UDP Rcv 10.47.20.214    11f3   Q [0001   D   NOERROR] A      (7)ehsqkip(3)gsf(2)cc(0)

    3/6/2017 9:45:10 AM 1084 PACKET  000000379923A230 UDP Rcv 10.47.20.214    7e11   Q [0001   D   NOERROR] A      (10)esglrzivrh(3)gsf(2)cc(0)

    3/6/2017 9:45:10 AM 0ED4 PACKET  0000003797B82210 UDP Rcv 10.47.20.214    6c7e   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:10 AM 1084 PACKET  0000003798158160 UDP Rcv 10.47.20.214    8ea6   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:10 AM 0ED4 PACKET  0000003796A081A0 UDP Rcv 10.47.20.214    f0ee   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:11 AM 0ED4 PACKET  0000003798EA21D0 UDP Rcv 10.47.20.214    621a   Q [0001   D   NOERROR] A      (10)bipwnivuey(3)gsf(2)cc(0)

    3/6/2017 9:45:11 AM 1084 PACKET  00000037984C0120 UDP Rcv 10.47.20.214    93d4   Q [0001   D   NOERROR] A      (14)lwprakbmgzokph(3)gsf(2)cc(0)

    3/6/2017 9:45:11 AM 1084 PACKET  0000003796DD21F0 UDP Rcv 10.47.20.214    6077   Q [0001   D   NOERROR] A      (12)uloblrydrowm(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  0000003797C200E0 UDP Rcv 10.47.20.214    8ea6   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  00000037970860F0 UDP Rcv 10.47.20.214    6c7e   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  0000003797594220 UDP Rcv 10.47.20.214    f0ee   Q [0001   D   NOERROR] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  0000003796AF00A0 UDP Snd 10.47.20.214    a30e R Q [8385 A DR NXDOMAIN] A      (6)isatap(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  0000003796B94080 UDP Snd 10.47.20.214    0d79 R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  0000003797416070 UDP Snd 10.47.20.214    1e5e R Q [8385 A DR NXDOMAIN] A      (15)unldziovdnckqmf(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  00000037971B8240 UDP Snd 10.47.20.214    d0d3 R Q [8385 A DR NXDOMAIN] A      (12)txmpuokzvbry(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  000000379697A150 UDP Snd 10.47.20.214    262c R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  0000003798396210 UDP Snd 10.47.20.214    d770 R Q [8385 A DR NXDOMAIN] A      (12)oewfmycpetdf(3)gsf(2)cc(0)

    3/6/2017 9:45:12 AM 1084 PACKET  0000003797740100 UDP Snd 10.47.20.214    ef0a R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:13 AM 1084 PACKET  0000003797D2A0F0 UDP Rcv 10.47.20.214    6077   Q [0001   D   NOERROR] A      (12)uloblrydrowm(3)gsf(2)cc(0)

    3/6/2017 9:45:13 AM 1084 PACKET  000000379697A150 UDP Rcv 10.47.20.214    93d4   Q [0001   D   NOERROR] A      (14)lwprakbmgzokph(3)gsf(2)cc(0)

    3/6/2017 9:45:13 AM 0ED4 PACKET  0000003796B26250 UDP Rcv 10.47.20.214    621a   Q [0001   D   NOERROR] A      (10)bipwnivuey(3)gsf(2)cc(0)

    3/6/2017 9:45:13 AM 1084 PACKET  000000379753A150 UDP Snd 10.47.20.214    11f3 R Q [8385 A DR NXDOMAIN] A      (7)ehsqkip(3)gsf(2)cc(0)

    3/6/2017 9:45:13 AM 1084 PACKET  0000003796CF0120 UDP Snd 10.47.20.214    7e11 R Q [8385 A DR NXDOMAIN] A      (10)esglrzivrh(3)gsf(2)cc(0)

    3/6/2017 9:45:13 AM 1084 PACKET  00000037977DC1C0 UDP Snd 10.47.20.214    d9b2 R Q [8385 A DR NXDOMAIN] A      (8)forwkost(3)gsf(2)cc(0)

    3/6/2017 9:45:14 AM 1084 PACKET  0000003797B761B0 UDP Snd 10.47.20.214    a30e R Q [8385 A DR NXDOMAIN] A      (6)isatap(3)gsf(2)cc(0)

    3/6/2017 9:45:14 AM 1084 PACKET  0000003798112130 UDP Snd 10.47.20.214    0d79 R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:14 AM 1084 PACKET  0000003798CBC100 UDP Snd 10.47.20.214    d770 R Q [8385 A DR NXDOMAIN] A      (12)oewfmycpetdf(3)gsf(2)cc(0)

    3/6/2017 9:45:14 AM 1084 PACKET  0000003798BF6110 UDP Snd 10.47.20.214    1e5e R Q [8385 A DR NXDOMAIN] A      (15)unldziovdnckqmf(3)gsf(2)cc(0)

    3/6/2017 9:45:14 AM 1084 PACKET  0000003796F6A250 UDP Snd 10.47.20.214    d0d3 R Q [8385 A DR NXDOMAIN] A      (12)txmpuokzvbry(3)gsf(2)cc(0)

    3/6/2017 9:45:14 AM 1084 PACKET  0000003798718140 UDP Snd 10.47.20.214    ef0a R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:14 AM 1084 PACKET  0000003796B8E2D0 UDP Snd 10.47.20.214    262c R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:15 AM 1084 PACKET  0000003798A90240 UDP Snd 10.47.20.214    d9b2 R Q [8385 A DR NXDOMAIN] A      (8)forwkost(3)gsf(2)cc(0)

    3/6/2017 9:45:15 AM 1084 PACKET  00000037990741E0 UDP Snd 10.47.20.214    11f3 R Q [8385 A DR NXDOMAIN] A      (7)ehsqkip(3)gsf(2)cc(0)

    3/6/2017 9:45:15 AM 1084 PACKET  000000379923A230 UDP Snd 10.47.20.214    7e11 R Q [8385 A DR NXDOMAIN] A      (10)esglrzivrh(3)gsf(2)cc(0)

    3/6/2017 9:45:15 AM 1084 PACKET  0000003797B82210 UDP Snd 10.47.20.214    6c7e R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:15 AM 1084 PACKET  0000003798158160 UDP Snd 10.47.20.214    8ea6 R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:15 AM 1084 PACKET  0000003796A081A0 UDP Snd 10.47.20.214    f0ee R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:16 AM 0ED4 PACKET  0000003798EA21D0 UDP Snd 10.47.20.214    621a R Q [8385 A DR NXDOMAIN] A      (10)bipwnivuey(3)gsf(2)cc(0)

    3/6/2017 9:45:16 AM 0ED4 PACKET  00000037984C0120 UDP Snd 10.47.20.214    93d4 R Q [8385 A DR NXDOMAIN] A      (14)lwprakbmgzokph(3)gsf(2)cc(0)

    3/6/2017 9:45:16 AM 0ED4 PACKET  0000003796DD21F0 UDP Snd 10.47.20.214    6077 R Q [8385 A DR NXDOMAIN] A      (12)uloblrydrowm(3)gsf(2)cc(0)

    3/6/2017 9:45:16 AM 0ED4 PACKET  0000003797858180 UDP Rcv 10.47.20.214    7e85   Q [0001   D   NOERROR] A      (6)isatap(3)gsf(2)cc(0)

    3/6/2017 9:45:17 AM 0ED4 PACKET  00000037981000A0 UDP Rcv 10.47.20.214    1e5f   Q [0001   D   NOERROR] A      (14)lwprakbmgzokph(3)gsf(2)cc(0)

    3/6/2017 9:45:17 AM 0ED4 PACKET  000000379782E250 UDP Rcv 10.47.20.214    d86a   Q [0001   D   NOERROR] A      (10)bipwnivuey(3)gsf(2)cc(0)

    3/6/2017 9:45:17 AM 0ED4 PACKET  00000037967500E0 UDP Rcv 10.47.20.214    41ef   Q [0001   D   NOERROR] A      (12)uloblrydrowm(3)gsf(2)cc(0)

    3/6/2017 9:45:18 AM 0ED4 PACKET  0000003797C200E0 UDP Snd 10.47.20.214    8ea6 R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:18 AM 0ED4 PACKET  00000037970860F0 UDP Snd 10.47.20.214    6c7e R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:18 AM 0ED4 PACKET  0000003797594220 UDP Snd 10.47.20.214    f0ee R Q [8385 A DR NXDOMAIN] A      (4)wpad(3)gsf(2)cc(0)

    3/6/2017 9:45:19 AM 0ED4 PACKET  0000003798EC00A0 UDP Rcv 10.47.20.214    1e5f   Q [0001   D   NOERROR] A      (14)lwprakbmgzokph(3)gsf(2)cc(0)

    3/6/2017 9:45:19 AM 1084 PACKET  0000003797960180 UDP Rcv 10.47.20.214    d86a   Q [0001   D   NOERROR] A      (10)bipwnivuey(3)gsf(2)cc(0)

    3/6/2017 9:45:19 AM 1084 PACKET  0000003796A9E230 UDP Rcv 10.47.20.214    41ef   Q [0001   D   NOERROR] A      (12)uloblrydrowm(3)gsf(2)cc(0)

    3/6/2017 9:45:19 AM 0ED4 PACKET  0000003797D2A0F0 UDP Snd 10.47.20.214    6077 R Q [8385 A DR NXDOMAIN] A      (12)uloblrydrowm(3)gsf(2)cc(0)

    3/6/2017 9:45:19 AM 0ED4 PACKET  000000379697A150 UDP Snd 10.47.20.214    93d4 R Q [8385 A DR NXDOMAIN] A      (14)lwprakbmgzokph(3)gsf(2)cc(0)

    3/6/2017 9:45:19 AM 0ED4 PACKET  0000003796B26250 UDP Snd 10.47.20.214    621a R Q [8385 A DR NXDOMAIN] A      (10)bipwnivuey(3)gsf(2)cc(0)

    3/6/2017 9:45:19 AM 0ED4 PACKET  0000003797702130 UDP Rcv 10.47.20.214    7e85   Q [0001   D   NOERROR] A      (6)isatap(3)gsf(2)cc(0)

    3/6/2017 9:45:23 AM 1084 PACKET  0000003797858180 UDP Snd 10.47.20.214    7e85 R Q [8385 A DR NXDOMAIN] A      (6)isatap(3)gsf(2)cc(0)

    3/6/2017 9:45:23 AM 1084 PACKET  00000037981000A0 UDP Snd 10.47.20.214    1e5f R Q [8385 A DR NXDOMAIN] A      (14)lwprakbmgzokph(3)gsf(2)cc(0)

    3/6/2017 9:45:23 AM 1084 PACKET  000000379782E250 UDP Snd 10.47.20.214    d86a R Q [8385 A DR NXDOMAIN] A      (10)bipwnivuey(3)gsf(2)cc(0)

    3/6/2017 9:45:23 AM 1084 PACKET  00000037967500E0 UDP Snd 10.47.20.214    41ef R Q [8385 A DR NXDOMAIN] A      (12)uloblrydrowm(3)gsf(2)cc(0)

    3/6/2017 9:45:24 AM 1084 PACKET  0000003798EC00A0 UDP Snd 10.47.20.214    1e5f R Q [8385 A DR NXDOMAIN] A      (14)lwprakbmgzokph(3)gsf(2)cc(0)

    3/6/2017 9:45:24 AM 1084 PACKET  0000003797960180 UDP Snd 10.47.20.214    d86a R Q [8385 A DR NXDOMAIN] A      (10)bipwnivuey(3)gsf(2)cc(0)

    3/6/2017 9:45:24 AM 1084 PACKET  0000003796A9E230 UDP Snd 10.47.20.214    41ef R Q [8385 A DR NXDOMAIN] A      (12)uloblrydrowm(3)gsf(2)cc(0)

    3/6/2017 9:45:25 AM 1084 PACKET  0000003797702130 UDP Snd 10.47.20.214    7e85 R Q [8385 A DR NXDOMAIN] A      (6)isatap(3)gsf(2)cc(0)

    Monday, March 6, 2017 3:57 PM
  • Hi AliSarreshteh,

    >>could it be another DNS server answering these DHCP requests?

    You could check if there is related events about registration on DNS server.

    Best Regards

    John


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Tuesday, March 7, 2017 6:52 AM
  • Unfortunately there are no related events in the DNS log files.

    Tuesday, March 7, 2017 2:16 PM
  • or the events...
    Tuesday, March 7, 2017 3:25 PM
  • Hi Alisarreshteh,

    >>Unfortunately there are no related events in the DNS log files.

    Did this issue always occur?

    If yes, you could catch traffic on DHCP server, and check if DHCP server has sent request of registration to DNS server, and DNS server has accepted request from DHCP server.

    Best Regards

    John


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Wednesday, March 8, 2017 1:43 AM
  • We have already observed that behavior in the DHCP log - DHCP sends request to DNS and Update succeed/fails:

    31,03/02/17,14:06:20,DNS Update Failed,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,2

    Wednesday, March 8, 2017 2:37 AM
  • ...I inherited these servers and to my knowledge we have had these issues for a while.
    Wednesday, March 8, 2017 2:50 AM
  • Hi,

    Please disabled Discard A and PTR records when lease is deleted and then check if this issue still occurs.

    Best Regards

    John


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Thursday, March 9, 2017 2:37 AM
  • No difference...tried it at IPv4 level as well as the scope.
    Friday, March 10, 2017 8:54 PM
  • Hi,

    You could try to configrue event logging for DNS updates.

    Please check link below to understand and configure it:

    More About DHCP Audit and Event Logging 

    https://technet.microsoft.com/en-us/library/dd759178.aspx

    Best Regards

    John


    Please remember to mark the replies as answers if they help.
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    Monday, March 13, 2017 1:25 AM
  • Thanks for your reply John but I have already configured the DHCP event logging and included in my posts.  Below is an excerpt.  Please let me know if this is what you are referring to:

     

    DHCP log shows:

    30,03/02/17,01:53:06,DNS Update Request,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    11,03/02/17,01:53:06,Renew,10.47.20.194,SODOLT450S.gsf.cc,68F728EC2939,,3726698348,0,,,,0x4D53465420352E30,MSFT 5.0,,,,0

    31,03/02/17,02:06:09,DNS Update Failed,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,2

    30,03/02/17,02:06:09,DNS Update Request,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    32,03/02/17,03:02:06,DNS Update Successful,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    30,03/02/17,13:53:06,DNS Update Request,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    11,03/02/17,13:53:06,Renew,10.47.20.194,SODOLT450S.gsf.cc,68F728EC2939,,1396236115,0,,,,0x4D53465420352E30,MSFT 5.0,,,,0

    31,03/02/17,14:06:20,DNS Update Failed,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,2

    30,03/02/17,14:06:20,DNS Update Request,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    32,03/02/17,14:58:14,DNS Update Successful,10.47.20.194,SODOLT450S.gsf.cc,,,0,6,,,,,,,,,0

    No forward/reverse record created

    Monday, March 13, 2017 2:21 PM