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You can have up to 50 rules per security group (covering both ingress and egress rules).
A security group is for use with instances either in the EC2-Classic platform or in a specific VPC. This action doesn't apply to security groups for use in EC2-Classic. For more information, see Security Groups for Your VPC in the Amazon Virtual Private Cloud User Guide.
Each rule consists of the protocol (for example, TCP), plus either a CIDR range or a source group. For the TCP and UDP protocols, you must also specify the destination port or port range. For the ICMP protocol, you must also specify the ICMP type and code. You can use -1 for the type or code to mean all types or all codes.
Rule changes are propagated to affected instances as quickly as possible. However, a small delay might occur.
Version: (assembly version)
public abstract AuthorizeSecurityGroupEgressResponse AuthorizeSecurityGroupEgress( AuthorizeSecurityGroupEgressRequest request )
Container for the necessary parameters to execute the AuthorizeSecurityGroupEgress service method.
Supported in: 4.5, 4.0, 3.5