Thousands of visitors from * How to block?

We’re seeing thousands of visitors on our forum from IP addresses that all match ec2-**

I’m not quite sure what firewall rule I should use to block these?

You can make Firewall rules that block/challenge AWS ASNs

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Thanks! I’m not sure how to get the ASN though…

It looks like these are all ClaudeBot and it’s the same as this issue:

Got it now, they all seem to be 16509.


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