Thx, Tridge.

I've seen the non-NULL dwReserved before and, as it turns out, I already have 
an inquiry on this.  As part of my follow-up to our IO Lab, I captured several 
DnsRecords to verify that dwTtlSeconds seemed to be in network order.  In the 
same report, I shared the observation that I was seeing dwReserved as non-NULL 
and parenthetically asked about it, too.

I saw notes that the PG discussed the issue I filed, but the outcome of that 
discussion was not available.  I'll ping the PG tomorrow.  However, finding 
folks this week is a bit of a challenge.  Is this blocking you?

Bryan

-----Original Message-----
From: [email protected] [mailto:[email protected]] 
Sent: Monday, December 20, 2010 6:30 PM
To: Bryan Burgin
Cc: [email protected]; [email protected]; MSSolve Case Email
Subject: Re: [REG:110122106325012] strange records in DNS LDAP NCs

 > I created SR 110122106325012 to track this issue.  An engineer from the 
 > protocols team will contact you soon.

thanks. 

Here is an example of a non-zero dwReserved for the 2nd question:

dnsRecord:     NDR: struct dnsp_DnssrvRpcRecord
        wDataLength              : 0x0021 (33)
        wType                    : DNS_TYPE_SRV (33)
        dwFlags                  : 0x0000f005 (61445)
        dwSerial                 : 0x000002ac (684)
        dwTtlSeconds             : 0x00000258 (600)
        dwTimeStamp              : 0x00000000 (0)
        dwReserved               : 0x0036d5ee (3593710)
        data                     : union dnsRecordData(case 33)
        srv: struct dnsp_srv
            wPriority                : 0x0000 (0)
            wWeight                  : 0x0064 (100)
            wPort                    : 0x0185 (389)
            nameTarget               : w2k8r2b.v2.tridgell.net


 > 2) what is the dwReserved field in all the dnsNode records? The MS-DNSP doc 
 > says:
 > 
 >    dwReserved: This value MUST be set to 0x00000000 when sent by the client 
 > and ignored on
 >      receipt by the server.
 > 
 > but that makes no sense. These are fields that are sent by the LDAP or DRS 
 > server in response to queries. The values are far too consistent to be 
 > random. 
 > 
 > Note that we are not asking about the DNS RPC protocol that MS-DNSP 
 > concentrates on. In our case Samba is a DC that is replicating the DNS NCs 
 > with Microsoft DCs. We need to know how to fill in these fields when we 
 > create records that will be replicated to MS DNS servers via DRS.
 > 
 > Cheers, Tridge

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