Can not block IP range


#1

Hello,

I want to block IP addresses from 195.154.128.0 to 195.154.255.255. All CIDR calculators return: 195.154.128.0/17. However I can not add 195.154.128.0/17 to the IP firewall. I get this error:

Only an IPv4 range (CIDR) value of /16 or /24 is allowed for Access Rules.

How can I block this IP range? Thanks.


#2

You can find info about adjusting WAF rules for different IP ranges in this article (under step 6).


#3

Ryan, thank you for your answer but the step 6 only explains how to whitelist/block an IP address. My problem is that I can not block the range 195.154.128.0/17 because of error.


#4

It should allow for ranges as well as individual IPs. I believe the ranges need to be in multiples of 8 though. so /24, /16, etc.