?
Solved

Excel: Get third octet of an IP address

Posted on 2010-11-24
11
Medium Priority
?
3,513 Views
Last Modified: 2012-05-10
Hello everybody

Can you guys help me find a way to get the third octet from an IP address?
What i basically need is everything that is in between (but not including) the second and third dot (.).

Examples:

192.168.12.77
172.16.215.33
10.0.1.1

I should get the following:
12
215
1

Thank you :)
0
Comment
Question by:Advizor
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
  • 2
  • +2
11 Comments
 
LVL 30

Expert Comment

by:SiddharthRout
ID: 34204306
Would this help?
Sub Sample()
    Dim strIP As String, MyArray() As String
    
    strIP = "192.168.12.77"
    
    MyArray = Split(strIP, ".")
    
    MsgBox MyArray(2)
    
End Sub

Open in new window

0
 
LVL 50
ID: 34204350
Here's a formula suggestion:

=LEFT(MID(A1,FIND(".",A1,FIND(".",A1)+1)+1,99),FIND(".",MID(A1,FIND(".",A1,FIND(".",A1)+1)+1,99))-1)

start in row 1 and copy down

cheers, teylyn
0
 
LVL 50
ID: 34204403
Building on SiddhartRout's VBA suggestion: if you want a dynamic VBA solution, you could try this user defined formula

Function Sample(strIP As String)
    Dim MyArray() As String
    MyArray = Split(strIP, ".")
    Sample = MyArray(2)
End Function

Open in new window


Copy and paste the code into a regular code module and then use

=sample(A1)

to calculate the result.
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 58

Accepted Solution

by:
cyberkiwi earned 1500 total points
ID: 34204425
=TRUNC("0"&MID(A1,FIND("|",SUBSTITUTE(A1&"..",".","|",2))+1,10))

Won't get any #value #n/a errors if it is not a valid ip address, 0 instead
0
 
LVL 58

Expert Comment

by:cyberkiwi
ID: 34204451
Nevermind, please ignore the previous comment. Been working at it too long - there are better answers.
0
 
LVL 50
ID: 34204475
CK, nice one with the TRUNC. It does work for my data sample, so no need to apologize.
0
 
LVL 50

Expert Comment

by:barry houdini
ID: 34204646
Try

=TRIM(LEFT(RIGHT(SUBSTITUTE(A1,".",REPT(" ",9)),18),9))

regards, barry
0
 
LVL 50

Expert Comment

by:barry houdini
ID: 34204854
...or....

=INT(-LOOKUP(0,-RIGHT(A1,{1,2,3,4,5,6,7})))

barry
0
 

Author Comment

by:Advizor
ID: 34204871
Thank you all for your suggestions.

I've managed to get something working from cyberkiwi's formula.
I ran into issues regarding international/regional settings when trying to use an unmodified version of cyberkiwi's.
Truncate expects a number, but on my danish version of Excel it does not see the preliminary result (on which to truncate) as a number. Yay! :/

Here is what I got to work:

=MID(B9;FIND("|";SUBSTITUTE(B9 & "..";".";"|";2))+1;FIND("|";SUBSTITUTE(B9 & "..";".";"|";3))-FIND("|";SUBSTITUTE(B9 & "..";".";"|";2))-1)

Thank you cyberkiwi (and all others as well) :)
0
 

Author Closing Comment

by:Advizor
ID: 34204914
Had to modify the suggestion due to regional differences between the two computers.
0
 
LVL 58

Expert Comment

by:cyberkiwi
ID: 34207675
Though I am happy for the points, I thought the other formulas worked as well.
Barry has a knack for formulaes, and his two options are both amazing pieces of art.

While the 2nd one returns the wrong result when the fourth octet is 0, I think the 1st one works.

Regards
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article describes a serious pitfall that can happen when deleting shapes using VBA.
This article describes how you can use Custom Document Properties to store settings and other information in your workbook so that they will be available the next time you open the workbook.
This Micro Tutorial will demonstrate on a Mac how to change the sort order for chart legend values and decrpyt the intimidating chart menu.
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…

718 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question