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  • Status: Solved
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ip to user mapping in AD environment

I am working on a network gateway appliance and like to log all the users going out to the internet through this gateway. Every user gets the ip address from a dhcp server and must be authenticated by a AD server first. All I have is the source ip address in the ip packet. Is there a way to query the userid from the AD server using the ip address?

Thanks.
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mike233
Asked:
mike233
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3 Solutions
 
pbeirneCommented:
There is no inherent Active Directory user to IP mapping.  You would have to use some other means to create a database that contains the mapping such as a logon script that populates a database with the user info and IP.
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mike233Author Commented:
Can you give me a pointer how the logon script can be done? Is it run on the AD server? Thanks.
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pbeirneCommented:
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pbeirneCommented:
One other alternative might be to programmatically query the WINS database which holds both user and IP registrations and then parse the output to a file or database.

You can download a tool from microsoft to run a WINS query via command line. It's called NBLOOKUP and works pretty much like NSLOOKUP for DNS.

http://support.microsoft.com/Default.aspx?kbid=830578

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