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IpAddressIfExists

IpAddressIfExists

compares an IP address in a request to a list of CIDR strings in your policy.

To match a request, the context key can be absent, but if present it must match at least one of the CIDR strings in your policy.

You can NOT use policy variables in the value of this operator.

IpAddressIfExists in an Allow Statement

Simulate in IAM Simulate
Policy ConditionRequest ContextResult
"IpAddressIfExists": {
  "aws:SourceIp": [
    "170.64.0.0/16",
    "2001:4860:4860::8888/32"
  ]
}
aws:SourceIp: null✓ Allowed Assuming no explicit Deny elsewhere
"IpAddressIfExists": {
  "aws:SourceIp": [
    "170.64.0.0/16",
    "2001:4860:4860::8888/32"
  ]
}
aws:SourceIp:
   170.64.109.25		✓ Allowed Assuming no explicit Deny elsewhere
"IpAddressIfExists": {
  "aws:SourceIp": [
    "170.64.0.0/16",
    "2001:4860:4860::8888/32"
  ]
}
aws:SourceIp: 10.0.14.32− Not Allowed Statement does not apply

IpAddressIfExists in a Deny Statement

Simulate in IAM Simulate
Policy ConditionRequest ContextResult
"IpAddressIfExists": {
  "aws:SourceIp": [
    "170.64.0.0/16",
    "2001:4860:4860::8888/32"
  ]
}
aws:SourceIp: null✕ Denied 
"IpAddressIfExists": {
  "aws:SourceIp": [
    "170.64.0.0/16",
    "2001:4860:4860::8888/32"
  ]
}
aws:SourceIp:
   170.64.109.25		✕ Denied 
"IpAddressIfExists": {
  "aws:SourceIp": [
    "170.64.0.0/16",
    "2001:4860:4860::8888/32"
  ]
}
aws:SourceIp: 10.0.14.32− Not Denied May be allowed by another statement

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