CloudFlare IPs to whitelist is incomplete


#1

I’ve found a list of IPs from CloudFlare to whitelist, but the list seems incomplete.

I was trying to block some origins, but I have to allow CloudFlare’s IPs, and I’ve tested some of them that seems registered as CloudFlare Inc, like this: 172.68.182.181, and this is the list from CloudFlare site:

source: https://www.cloudflare.com/ips/

103.21.244.0/22
103.22.200.0/22
103.31.4.0/22
104.16.0.0/12
108.162.192.0/18
131.0.72.0/22
141.101.64.0/18
162.158.0.0/15
172.64.0.0/13
173.245.48.0/20
188.114.96.0/20
190.93.240.0/20
197.234.240.0/22
198.41.128.0/17

Perhaps I’m missing something.
Can I get an updated list ?


#2

The Cloudflare IP list is in CIDR notation. 172.64.0.0/13 translates to 172.64.0.0 to 172.71.255.255 with a subnet mask of 255.248.0.0, so the address you mentioned is within that range.


#3

Thanks, @StuartMorrisAU, it was my fault !


#4

No problem, happy to help. :blush:


#5

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