Excel incrementing IP addresses

[Robertson1995]

I have a spreadsheet that contains numerous IP addresses. What I need is if I have for example 10.125.190.55 in Cell A1, in Cell D1 in need this IP address plus 1 which would be 10.125.190.56. Its not recognizing it in the IP format. Is this a formatting issue or is there a formula to make this work?

 

[VoG]

Try

=SUBSTITUTE(A1,TRIM(RIGHT(SUBSTITUTE(A1,".",REPT(" ",255)),255)),TRIM(RIGHT(SUBSTITUTE(A1,".",REPT(" ",255)),255))+1)

 

[Robertson1995]

Worked Great. Thanks for the help and quick reply.

 

[mrniceguy]

Try

=SUBSTITUTE(A1,TRIM(RIGHT(SUBSTITUTE(A1,".",REPT(" ",255)),255)),TRIM(RIGHT(SUBSTITUTE(A1,".",REPT(" ",255)),255))+1)

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When using this with a single digit in the fourth octet it changes the first number in the first octet.


ex: 11.22.33.0 = 21.22.33.0 instead of 11.22.33.1

Any answers???

 

[XBEXCEL]

When using this with a single digit in the fourth octet it changes the first number in the first octet.


ex: 11.22.33.0 = 21.22.33.0 instead of 11.22.33.1

Any answers???

Make sure you change all the "A1" cells to the cell you want like "K4":
=SUBSTITUTE(K4,TRIM(RIGHT(SUBSTITUTE(K4,".",REPT(" ",255)),255)),TRIM(RIGHT(SUBSTITUTE(K4,".",REPT(" ",255)),255))+1)

 

[Lockmariz]

I can't get the following string to work in Excel 2010:

=SUBSTITUTE(A1,TRIM(RIGHT(SUBSTITUTE(A1,".",REPT("  ",255)),255)),TRIM(RIGHT(SUBSTITUTE(A1,".",REPT("  ",255)),255))+1)

Do you have a solution for that?

Best regards,
Lockmariz.

 

[hikerguy]

Try

=SUBSTITUTE(A1,TRIM(RIGHT(SUBSTITUTE(A1,".",REPT(" ",255)),255)),TRIM(RIGHT(SUBSTITUTE(A1,".",REPT(" ",255)),255))+1)

Hello VoG,

Can you break down how this formula works? I'm not understanding what the "255" is for.

Thanks,

Andy

 

[VoG]

The 255 is just a long string of text (255 characters). For an IP address a smaller number like 10 should work.

 

[hikerguy]

The 255 is just a long string of text (255 characters). For an IP address a smaller number like 10 should work.

Thanks for the response VoG. I'm still not clear why that was used. If I understand the REPT command, that formula is repeating a blank character 255 times. Why is that needed?

(SUBSTITUTE(A1,".",REPT(" ",255)),255)),


Thanks, Andy

 

[VoG]

It substitutes the . in the IP address with 255 spaces. Then uses the RIGHT function to return the rightmost 255 characters from the substituted value. Trim is then used to remove excess spaces.