How do create a formula to add IP addresses?
 

I am trying to make a formula that adds the last part of an IP address, such
that when I type in one IP address suchas 147.202.70.132, they automatically
fill in below sequentially with 133, 134, 135, etc. Can anyone help me with
this? Thanks.

How do create a formula to add IP addresses?
 

I'd use a VBA function.

Function NextIPAddress(IP As String) As String
Dim Arr As Variant
Arr = Split(IP, ".")
Arr(UBound(Arr)) = Arr(UBound(Arr)) + 1
NextIPAddress = Join(Arr, ".")
End Function

You can then call this from a worksheet cell with code like
=NextIPAddress(A1)

You be using Excel 2000 or later in order to use the Split and
Join functions.

--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com



"jeffreyj" wrote in message
...
I am trying to make a formula that adds the last part of an IP
address, such
that when I type in one IP address suchas 147.202.70.132, they
automatically
fill in below sequentially with 133, 134, 135, etc. Can
anyone help me with
this? Thanks.

How do create a formula to add IP addresses?
 

Just drag and copy them down, Excel does it.

--

HTH

Bob Phillips

(replace xxxx in the email address with gmail if mailing direct)

"jeffreyj" wrote in message
...
I am trying to make a formula that adds the last part of an IP address,
such
that when I type in one IP address suchas 147.202.70.132, they
automatically
fill in below sequentially with 133, 134, 135, etc. Can anyone help me
with
this? Thanks.

How do create a formula to add IP addresses?
 

I never knew that.


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com

"Bob Phillips" wrote in message
...
Just drag and copy them down, Excel does it.

--

HTH

Bob Phillips

(replace xxxx in the email address with gmail if mailing
direct)

"jeffreyj" wrote in
message
...
I am trying to make a formula that adds the last part of an IP
address,
such
that when I type in one IP address suchas 147.202.70.132, they
automatically
fill in below sequentially with 133, 134, 135, etc. Can
anyone help me
with
this? Thanks.

How do create a formula to add IP addresses?
 

"jeffreyj" wrote:
I am trying to make a formula that adds the last part of an
IP address, such that when I type in one IP address suchas
147.202.70.132, they automatically fill in below sequentially
with 133, 134, 135, etc.

If A1 contains the initial IP address, A2 can be:

=REPLACE(A1, FIND(".",A1,FIND(".",A1,FIND(".",A1)+1)+1)+1,
LEN(A1),
MIN(255,
MID(A1, FIND(".",A1,FIND(".",A1,FIND(".",A1)+1)+1)+1, LEN(A1)) + 1))

When you copy the formula down the column, Excel will update
the relative cell references appropriately.

Obviously it would be better to put the FIND() result into a helper
cell to avoid evaluating it twice.

How do create a formula to add IP addresses?
 

"Bob Phillips" wrote:
Just drag and copy them down, Excel does it.

I shoulda remembered that myself. But on second thought, I
think Chip's suggestion of using a macro is the best idea because
it can be extended to cover the more general case of "incrementing
an IP address". The OP assumes that requires only incrementing
the last octet, which is the case for Class C IP addresses. But in
the case of a Class A, B and D IP addresses, incrementing 255
may carry over to the next octet. For example, the next address
after 1.2.3.255 is 1.2.4.0.

How do create a formula to add IP addresses?
 

I know Excel does this. I need a formula so that it updates automatically.
I want to set a cell equal to an IP address in a different worksheet A. And
when I update the IP address in worksheet A, it updates it in B and fills in
the IP addresses below, automatically

"Bob Phillips" wrote:

Just drag and copy them down, Excel does it.

--

HTH

Bob Phillips

(replace xxxx in the email address with gmail if mailing direct)

"jeffreyj" wrote in message
...
I am trying to make a formula that adds the last part of an IP address,
such
that when I type in one IP address suchas 147.202.70.132, they
automatically
fill in below sequentially with 133, 134, 135, etc. Can anyone help me
with
this? Thanks.

How do create a formula to add IP addresses?
 

The VBA procedure I posted will do that.


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com

"jeffreyj" wrote in message
...
I know Excel does this. I need a formula so that it updates
automatically.
I want to set a cell equal to an IP address in a different
worksheet A. And
when I update the IP address in worksheet A, it updates it in B
and fills in
the IP addresses below, automatically

"Bob Phillips" wrote:

Just drag and copy them down, Excel does it.

--

HTH

Bob Phillips

(replace xxxx in the email address with gmail if mailing
direct)

"jeffreyj" wrote in
message
...
I am trying to make a formula that adds the last part of an
IP address,
such
that when I type in one IP address suchas 147.202.70.132,
they
automatically
fill in below sequentially with 133, 134, 135, etc. Can
anyone help me
with
this? Thanks.

How do create a formula to add IP addresses?
 

Thanks Chip. I will use that.

"Chip Pearson" wrote:

The VBA procedure I posted will do that.


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com

"jeffreyj" wrote in message
...
I know Excel does this. I need a formula so that it updates
automatically.
I want to set a cell equal to an IP address in a different
worksheet A. And
when I update the IP address in worksheet A, it updates it in B
and fills in
the IP addresses below, automatically

"Bob Phillips" wrote:

Just drag and copy them down, Excel does it.

--

HTH

Bob Phillips

(replace xxxx in the email address with gmail if mailing
direct)

"jeffreyj" wrote in
message
...
I am trying to make a formula that adds the last part of an
IP address,
such
that when I type in one IP address suchas 147.202.70.132,
they
automatically
fill in below sequentially with 133, 134, 135, etc. Can
anyone help me
with
this? Thanks.

How do create a formula to add IP addresses?
 

Chip,

Say I wanted to add onto this function, and instead of just giving the next
IP address, I want to check to see if the next IP address is divisible by 4.
If it is divisible by 4 then put it in the cell, if not, put the next
available address that is divisible by 4. How would I do this? thanks.


"Chip Pearson" wrote:

I'd use a VBA function.

Function NextIPAddress(IP As String) As String
Dim Arr As Variant
Arr = Split(IP, ".")
Arr(UBound(Arr)) = Arr(UBound(Arr)) + 1
NextIPAddress = Join(Arr, ".")
End Function

You can then call this from a worksheet cell with code like
=NextIPAddress(A1)

You be using Excel 2000 or later in order to use the Split and
Join functions.

--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com



"jeffreyj" wrote in message
...
I am trying to make a formula that adds the last part of an IP
address, such
that when I type in one IP address suchas 147.202.70.132, they
automatically
fill in below sequentially with 133, 134, 135, etc. Can
anyone help me with
this? Thanks.

How do create a formula to add IP addresses?
 

Try

Function NextIPAddress(IP As String) As String
Dim Arr As Variant
Dim V As Integer
Arr = Split(IP, ".")
V = CInt(Arr(UBound(Arr)))
V = V + 1
If V Mod 4 = 0 Then
Arr(UBound(Arr)) = V
Else
V = V + 4 - (V Mod 4)
Arr(UBound(Arr)) = CStr(V)
End If
NextIPAddress = Join(Arr, ".")
End Function



--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com


"jeffreyj" wrote in message
...
Chip,

Say I wanted to add onto this function, and instead of just
giving the next
IP address, I want to check to see if the next IP address is
divisible by 4.
If it is divisible by 4 then put it in the cell, if not, put
the next
available address that is divisible by 4. How would I do this?
thanks.


"Chip Pearson" wrote:

I'd use a VBA function.

Function NextIPAddress(IP As String) As String
Dim Arr As Variant
Arr = Split(IP, ".")
Arr(UBound(Arr)) = Arr(UBound(Arr)) + 1
NextIPAddress = Join(Arr, ".")
End Function

You can then call this from a worksheet cell with code like
=NextIPAddress(A1)

You be using Excel 2000 or later in order to use the Split and
Join functions.

--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com



"jeffreyj" wrote in
message
...
I am trying to make a formula that adds the last part of an
IP
address, such
that when I type in one IP address suchas 147.202.70.132,
they
automatically
fill in below sequentially with 133, 134, 135, etc. Can
anyone help me with
this? Thanks.