I did a lab and I was able to reproduce the behavior of Azure firewall adding implicit spaces.
I was able to add a list of IPs with both
- Just comma separated
- Comma separated plus space
However,
- Spaces only separated list did not work.
Is this the issue you are looking at?
Are you interested in knowing what is the recommended way to do this?
In any case, the rule I created worked perfectly.
- It does not matter if you use a "comma separated" or "comma separated plus space".
- I created a rule that allowed 8.8.8.8 and 1.1.1.1
-
- 8.8.8.8 (dns.google)
-
- one.one.one.one (1.1.1.1)
-
- while accessing www.google.com
-
Cheers,
Kapil