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Specifying SPF IP Range

Posted on 2011-04-21
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Last Modified: 2012-05-11
Quick question about SPF records across an IP address range.

Let's say I have a range of IP addresses that I want to allow - say it's:

xx.xx.xxx.135 through
xx.xx.xxx.184

What would the syntax for that be?

Thanks!
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Question by:erzoolander
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by:Ernie Beek
ID: 35441484
Should be: ip4:x.x.x.x/nn so the cidr notation. Have a look at: http://www.openspf.org/SPF_Record_Syntax
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by:erzoolander
ID: 35441674
I read that - and that's what confused me.  For example - it says:

"v=spf1 ip4:192.168.0.1/16 -all"
Allow any IP address between 192.168.0.1 and 192.168.255.255"

Which isn't exactly what I'm looking for.

Let's say I just want:

192.168.0.1 through
192.168.0.16

?
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Ernie Beek earned 2000 total points
ID: 35441723
Then it would be: 192.168.1.0/28

Try this to play with: http://www.subnet-calculator.com/cidr.php
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by:erzoolander
ID: 35441851
Gracias!
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by:Ernie Beek
ID: 35442233
De nada ;)

Thx for the points.
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