Query to parse out the IP address from string

Posted on 2008-10-17
Last Modified: 2012-05-05
Looking for a way in a SQL query to extract the IP address from a string and then rename it.
For example I have a date field called Date_Time and field called "message" and it contains data such as

TCP connection 72260 for Outside: to Inside: duration 0:00:00 bytes 0 TCP Reset-I ()
TCP connection 7260 for Outside: to Inside: duration 0:00:00 bytes 0 TCP Reset-I ()

I want to grab the IP address of and return something like
Date_Time, Host
2008-10-17 10:48:48    NewHostName       <---- based on the IP of 123.123129.145
2008-10-17 10:50:17    AnotherHostName <---- based on the IP of 123.123123.19
Question by:edrz01
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Expert Comment

ID: 22742443
You might have to use the replace function for each each IP and replace it with the string you want to put in its palce.
LVL 39

Accepted Solution

BrandonGalderisi earned 500 total points
ID: 22743258
this will find the IP address in message along with date_time, but I'm not sure where you want to get the hostname from.

Just replace your table name with the derived table I have put sample data in for after the FROM
select date_time,substring(message, charindex('Outside:',message)+8,charindex('/',message,charindex('Outside:',message)+8)-(charindex('Outside:',message)+8))
(select 'TCP connection 72260 for Outside: to Inside: duration 0:00:00 bytes 0 TCP Reset-I ()' as Message
union select 'TCP connection 7260 for Outside: to Inside: duration 0:00:00 bytes 0 TCP Reset-I ()'
) a

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