How to get the client IP address from SQL Server 2008 itself?

Question

I found something which might work for you

CREATE FUNCTION [dbo].[GetCurrentIP] ()
RETURNS varchar(255)
AS
BEGIN
    DECLARE @IP_Address varchar(255);

    SELECT @IP_Address = client_net_address
    FROM sys.dm_exec_connections
    WHERE Session_id = @@SPID;

    Return @IP_Address;
END

From How to get Client IP Address in SQL Server

Also have a look at this article about Get client IP address

You can try out this solution. It even works on shared hosting:

select CONNECTIONPROPERTY('client_net_address') AS client_net_address 

it needs just single line of code

 SELECT CONVERT(char(15), CONNECTIONPROPERTY('client_net_address'))

Ultimately join the two system tables:

SELECT  hostname,
        net_library,
        net_address,
        client_net_address
FROM    sys.sysprocesses AS S
INNER JOIN    sys.dm_exec_connections AS decc ON S.spid = decc.session_id
WHERE   spid = @@SPID

Output:

hostname | net_library | net_address | client_net_address    
PIERRE   | TCP/IP      | 0090F5E5DEFF| 10.38.168.5

I couldn't get the exact numeric IP address, instead I got a NULL value because of the limitation of the above statements. The limit is that you only get IP addresses if you're connected via TCP/IP. If you're local and using Shared Memory then those attributes don't exist. If you turn off Shared Memory (or any protocols except for TCP/IP) via Server Configuration Manager you will always get IP address for any connection.

You are best stuck with

SELECT SERVERPROPERTY(N'MachineName');

... which can act in place of numeric IP address.