Here is a handy T-SQL script to find the IP Address of the SQL Server you are connected to.
SELECT CONNECTIONPROPERTY('local_net_address') AS [IP Address Of SQL Server]
SELECT SERVERPROPERTY('ComputerNamePhysicalNetBIOS') [Machine Name] ,SERVERPROPERTY('InstanceName') AS [Instance Name] ,LOCAL_NET_ADDRESS AS [IP Address Of SQL Server] ,CLIENT_NET_ADDRESS AS [IP Address Of Client] FROM SYS.DM_EXEC_CONNECTIONS WHERE SESSION_ID = @@SPID