unreliable DDNS updates by W2K clients

[Barry Finkel]

 "Linsenbardt, Duane L." <Duane.Linsenbardt at jhuapl.edu> wrote:

>Hello:
>We are experiencing intermittent DDNS registrations with Windows 2000,
>Service Pack 1, clients to BIND V8 running under Solaris V2.6.  Below are
>snippets from a failing and a successful trace.  Note difference between DNS
>response packet 55 in first snippet and 60 in the second.  Any assistance
>would be appreciated.
>
>-Duane
>
>Failing scenario:
>50 DNS 0x7:Std Qry for d81000-41.ssd.jhuapl.edu. of type SOA on class INET addr.
>51 DNS 0x7:Std Qry Resp. Auth. NS is ssd.jhuapl.edu. of type SOA on class INET addr. : Name does not exist
>52 DNS 0x8:Std Qry for dallas.jhuapl.edu. of type Host Addr on class INET addr.        
>53 DNS 0x8:Std Qry Resp. Auth. NS is dallas.jhuapl.edu. of type Host Addr on class INET addr.
>54 DNS 0x9:Dyn Upd PRE records to d81000-41.ssd.jhuapl.edu. of type Canonical name
>55 DNS 0x9:Dyn Upd Resp.
>
>Successful scenario:
>55 DNS 0x7:Std Qry for d81000-41.ssd.jhuapl.edu. of type SOA on class INET addr.
>56 DNS 0x7:Std Qry Resp. Auth. NS is ssd.jhuapl.edu. of type SOA on class INET addr. : Name does not exist
>57 DNS 0x8:Std Qry for dallas.jhuapl.edu. of type Host Addr on class INET addr. 
>58 DNS 0x8:Std Qry Resp. Auth. NS is dallas.jhuapl.edu. of type Host Addr on class INET addr.
>59 DNS 0x9:Dyn Upd PRE records to d81000-41.ssd.jhuapl.edu. of type Canonical name
>60 DNS 0x9:Dyn Upd Resp. : RR set that ought to exist, does not exist
>61 DNS 0xA:Std Qry for d81000-41.ssd.jhuapl.edu. of type SOA on class INET addr.
>62 DNS 0xA:Std Qry Resp. Auth. NS is ssd.jhuapl.edu. of type SOA on class INET addr. : Name does not exist
>63 DNS 0xB:Std Qry for dallas.jhuapl.edu. of type Host Addr on class INET addr.
>64 DNS 0xB:Std Qry Resp. Auth. NS is dallas.jhuapl.edu. of type Host Addr on class INET addr.
>65 DNS 0xC:Dyn Upd PRE/UPD records to d81000-41.ssd.jhuapl.edu. of type Canonical name
>66 DNS 0xC:Dyn Upd Resp.

I have looked at many Win2k DNS traces, but I cannot tell what is
happening here.  The failing scenario ends with

     55 DNS 0x9:Dyn Upd Resp.

and that does not tell me anything about the cause of the failure.
With what did you get this trace?  MS Network Monitor?
----------------------------------------------------------------------
Barry S. Finkel
Electronics and Computing Technologies Division
Argonne National Laboratory          Phone:    +1 (630) 252-7277
9700 South Cass Avenue               Facsimile:+1 (630) 252-9689
Building 221, Room B236              Internet: BSFinkel at anl.gov
Argonne, IL   60439-4844             IBMMAIL:  I1004994