Track IP address of user accessing tables in SQL Server 2008 R2 Audit

I am trying to use audit feature of SqlServer 2008R2 and able to get the details of logged in user and also when he fires any query in DB.
I am also able to get the IP address in additional_information column in xml form.
My problem is I can get the IP address only when he logged in to the sql server, but when he fires any query the additional_information column is blank, so I am unable to get the machine details from which this query is fired.
Problem may occur when two different users use same login credentials and fire query, then it is impossible for me to find which user fired which query
In Server Audit Specification I am using SUCCESSFUL_LOGIN_GROUP and SCHEMA_OBJECT_ACCESS_GROUP.

Thanks in Advance....
ziorinfoAsked:
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lcohanDatabase AnalystCommented:
You can use these inside SQL and as each connection binds to a SPID you should be able to get the client IP:

SELECT hostname, net_library, net_address FROM sys.sysprocesses
where len(hostname)>0

SELECT client_net_address as IP_Address FROM sys.dm_exec_connections
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ziorinfoAuthor Commented:
Thanks for the solution, it worked. Can I differentiate between the logs which are entered through my website and directly from sql server.
Actually when any user visits my website, that record is also stored in the Audit log and only session id is different in this case which is not sufficient for me to track which log is entered from application front end and which from sql server query.

Thanks
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Microsoft SQL Server 2008

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