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AWS Fundamentals
L1 ConstructAWS::EC2::SecurityGroupEgress

CfnSecurityGroupEgress

Adds the specified outbound (egress) rule to a security group. An outbound rule permits instances to send traffic to the specified IPv4 or IPv6 address range, the IP addresses that are specified by a prefix list, or the instances that are associated with a destination security group. For more information, see [Security group rules](https://docs.aws.amazon.com/vpc/latest/userguide/security-group-rules.html) . You must specify exactly one of the following destinations: an IPv4 address range, an IPv6 address range, a prefix list, or a security group. You must specify a protocol for each rule (for example, TCP). If the protocol is TCP or UDP, you must also specify a port or port range. If the protocol is ICMP or ICMPv6, you must also specify the ICMP/ICMPv6 type and code. To specify all types or all codes, use -1. Rule changes are propagated to instances associated with the security group as quickly as possible. However, a small delay might occur.

Import

import { CfnSecurityGroupEgress } from 'aws-cdk-lib/aws-ec2';

Or use the module namespace:

import * as ec2 from 'aws-cdk-lib/aws-ec2';
// ec2.CfnSecurityGroupEgress

Properties

Configuration passed to the constructor as CfnSecurityGroupEgressProps.

groupIdRequired
string | ISecurityGroupRef

The ID of the security group. You must specify either the security group ID or the security group name in the request. For security groups in a nondefault VPC, you must specify the security group ID.

ipProtocolRequired
string

The IP protocol name ( `tcp` , `udp` , `icmp` , `icmpv6` ) or number (see [Protocol Numbers](https://docs.aws.amazon.com/http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml) ). Use `-1` to specify all protocols. When authorizing security group rules, specifying `-1` or a protocol number other than `tcp` , `udp` , `icmp` , or `icmpv6` allows traffic on all ports, regardless of any port range you specify. For `tcp` , `udp` , and `icmp` , you must specify a port range. For `icmpv6` , the port range is optional; if you omit the port range, traffic for all types and codes is allowed.

cidrIpOptional
string

The IPv4 address range, in CIDR format. You must specify exactly one of the following: `CidrIp` , `CidrIpv6` , `DestinationPrefixListId` , or `DestinationSecurityGroupId` . For examples of rules that you can add to security groups for specific access scenarios, see [Security group rules for different use cases](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/security-group-rules-reference.html) in the *Amazon EC2 User Guide* .

cidrIpv6Optional
string

The IPv6 address range, in CIDR format. You must specify exactly one of the following: `CidrIp` , `CidrIpv6` , `DestinationPrefixListId` , or `DestinationSecurityGroupId` . For examples of rules that you can add to security groups for specific access scenarios, see [Security group rules for different use cases](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/security-group-rules-reference.html) in the *Amazon EC2 User Guide* .

descriptionOptional
string

The description of an egress (outbound) security group rule. Constraints: Up to 255 characters in length. Allowed characters are a-z, A-Z, 0-9, spaces, and ._-:/()#,@[]+=;{}!$*

destinationPrefixListIdOptional
string

The prefix list IDs for an AWS service. This is the AWS service to access through a VPC endpoint from instances associated with the security group. You must specify exactly one of the following: `CidrIp` , `CidrIpv6` , `DestinationPrefixListId` , or `DestinationSecurityGroupId` .

destinationSecurityGroupIdOptional
string | ISecurityGroupRef

The ID of the security group. You must specify exactly one of the following: `CidrIp` , `CidrIpv6` , `DestinationPrefixListId` , or `DestinationSecurityGroupId` .

fromPortOptional
number

If the protocol is TCP or UDP, this is the start of the port range. If the protocol is ICMP or ICMPv6, this is the ICMP type or -1 (all ICMP types).

toPortOptional
number

If the protocol is TCP or UDP, this is the end of the port range. If the protocol is ICMP or ICMPv6, this is the ICMP code or -1 (all ICMP codes). If the start port is -1 (all ICMP types), then the end port must be -1 (all ICMP codes).

CloudFormation Resource

This L1 construct maps directly to the following CloudFormation resource type.

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