AWS SDK for .NET Documentation
NewIpAddressCondition Method (ipAddressRange)
AmazonAmazon.Auth.AccessControlPolicyConditionFactoryNewIpAddressCondition(String) Did this page help you?   Yes   No    Tell us about it...
Constructs a new access policy condition that compares the source IP address of the incoming request to an AWS service against the specified CIDR range. The condition evaluates to true (meaning the policy statement containing it will be applied) if the incoming source IP address is within that range.

To achieve the opposite effect (i.e. cause the condition to evaluate to true when the incoming source IP is not in the specified CIDR range) use the alternate constructor form and specify IpAddressComparisonType.NotIpAddress.

Declaration Syntax
C#
public static Condition NewIpAddressCondition(
	string ipAddressRange
)
Parameters
ipAddressRange (String)
The CIDR IP range involved in the policy condition.

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)