Why is access possible from IP that i haven't included in the list?

I included the aws ec2 ip in the “Network Access” list ( ex: 123.123.123.123 )
and I made another ec2 instance.
however why is access possibe from this ec2(( ex: 222.222.222.222 )?

Hi @Jin_Hwan

Can you check that each entry in the accesslist has /32 after it?

Any other value may be including a wider range of ip addresses. If it is /0 then it is wide open to the internet.

I’d recommend you use MongoDB support to further troubleshoot your Atlas deployment.

ah one of entries has “/0” i will check it
thank you chris

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