DNS update via DHCP is reversing octets in logging

Is it intended design for DNS doing an update (via DHCP) to reverse the
updates in its logging:

<13>Mar 25 12:39:06 172.27.21.22 AgentDevice=WindowsDHCP
AgentLogFile=DhcpSrvLog-Thu.log ID=30 Date=03/25/10 Time=12:39:06
Description=DNS Update Request IP Address=41.21.27.172 Host
Name=TRU-WS-034.rgfc.main MAC Address= User Name=

<13>Mar 25 12:39:06 172.27.21.22 AgentDevice=WindowsDHCP
AgentLogFile=DhcpSrvLog-Thu.log ID=30 Date=03/25/10 Time=12:39:06
Description=DNS Update Request IP Address=41.21.27.172 Host
Name=TRU-WS-034.rgfc.main MAC Address= User Name=

<13>Mar 25 12:39:06 172.27.21.22 AgentDevice=WindowsDHCP
AgentLogFile=DhcpSrvLog-Thu.log ID=32 Date=03/25/10 Time=12:39:06
Description=DNS Update Successful IP Address=172.27.21.41 Host
Name=TRU-WS-034.rgfc.main MAC Address= User Name=

<13>Mar 25 12:39:06 172.27.21.22 AgentDevice=WindowsDHCP
AgentLogFile=DhcpSrvLog-Thu.log ID=32 Date=03/25/10 Time=12:39:06
Description=DNS Update Successful IP Address=172.27.21.41 Host
Name=TRU-WS-034.rgfc.main MAC Address= User Name=

Notice the addresses are reversed. Would anyone see anything in these that
would say to them ‘this is a reverse PTR and we should reverse the order of
the IP octets!’ ? Or is it intended design?
DarkpawAsked:
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Chris DentPowerShell DeveloperCommented:

> ‘this is a reverse PTR and we should reverse the order of the IP octets!’ ?

The addresses will be stored in DNS as:

41.21.27.172.in-addr.arpa

So it's possible that for the Request it logs it in reverse because it must send it that way with in-addr.arpa as a suffix.

Conjecture only...

Chris

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leegclystvaleCommented:
It looks as though it's doing a reverse lookup ip to domain name and is by design.
 
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DarkpawAuthor Commented:
Thanks.  It looked like it might be design intent, but just wanted to verify.
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