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Showing content from https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/modify-network-interface-attributes.html below:

Modify network interface attributes - Amazon Elastic Compute Cloud

You can change the following network interface attributes:

• Description

• Security groups

• Delete on termination

• Source/destination check

• Idle connection tracking timeout

You can't change the attributes of a requester-managed network interface.

Console

To modify network interface attributes

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. In the navigation pane, choose Network Interfaces.

3. Select the checkbox for the network interface.

4. To change the description, do the following

   1. Choose Actions, Change description.

   2. For Description, enter a description.

   3. Choose Save.

5. To change the security groups, do the following:

   1. Choose Actions, Change security groups.

   2. For Associated security groups, add and remove security groups as needed. The security group and network interface must be created for the same VPC.

   3. Choose Save.

6. To change the termination behavior, do the following:

   1. Choose Actions, Change termination behavior.

   2. Select or clear Delete on termination, Enable.

   3. Choose Save.

7. To change source/destination checking, do the following:

   1. Choose Actions, Change source/dest check.

   2. Select or clear Source/destination check, Enable.

   3. Choose Save.

8. To change idle connection tracking timeouts, do the following:

   1. Choose Actions, Modify idle connection tracking timeout.

   2. Modify timeout values as needed. For more information, see Idle connection tracking timeout.

      • TCP established timeout: Timeout (in seconds) for idle TCP connections in an established state.

        • Min: 60 seconds

        • Max: 432000 seconds

        • Default: 350 seconds for C8gn instance types, and 432000 seconds for other instance types

        • Recommended: Less than 432000 seconds

      • UDP timeout: Timeout (in seconds) for idle UDP flows that have seen traffic only in a single direction or a single request-response transaction.

        • Min: 30 seconds

        • Max: 60 seconds

        • Default: 30 seconds

      • UDP stream timeout: Timeout (in seconds) for idle UDP flows classified as streams which have seen more than one request-response transaction.

        • Min: 60 seconds

        • Max: 180 seconds

        • Default: 180 seconds

   3. Choose Save.

AWS CLI

Example: To modify the description

Use the following modify-network-interface-attribute command.

aws ec2 modify-network-interface-attribute \
    --network-interface-id eni-1234567890abcdef0 \
    --description "my updated description"

Example: To modify the security groups

Use the following modify-network-interface-attribute command.

aws ec2 modify-network-interface-attribute \
    --network-interface-id eni-1234567890abcdef0 \
    --groups sg-1234567890abcdef0

Example: To modify the termination behavior

Use the following modify-network-interface-attribute command.

aws ec2 modify-network-interface-attribute \
    --network-interface-id eni-1234567890abcdef0 \
    --attachment AttachmentId=eni-attach-43348162abEXAMPLE,DeleteOnTermination=false

Example: To enable source/destination checking

Use the following modify-network-interface-attribute command.

aws ec2 modify-network-interface-attribute \
    --network-interface-id eni-1234567890abcdef0 \
    --source-dest-check

Example: To modify idle connection tracking timout

Use the following modify-network-interface-attribute command. For more information, see Idle connection tracking timeout.

aws ec2 modify-network-interface-attribute \
    --network-interface-id eni-1234567890abcdef0 \
    --connection-tracking-specification TcpEstablishedTimeout=172800,UdpStreamTimeout=90,UdpTimeout=60

PowerShell

Example: To modify the description

Use the Edit-EC2NetworkInterfaceAttribute cmdlet.

Edit-EC2NetworkInterfaceAttribute `
    -NetworkInterfaceId eni-1234567890abcdef0 `
    -Description "my updated description"

Example: To modify the security groups

Use the Edit-EC2NetworkInterfaceAttribute cmdlet.

Edit-EC2NetworkInterfaceAttribute `
    -NetworkInterfaceId eni-1234567890abcdef0 `
    -Group sg-1234567890abcdef0

Example: To modify the termination behavior

Use the Edit-EC2NetworkInterfaceAttribute cmdlet.

Edit-EC2NetworkInterfaceAttribute `
    -NetworkInterfaceId eni-1234567890abcdef0 `
    -Attachment_AttachmentId eni-attach-43348162abEXAMPLE `
    -Attachment_DeleteOnTermination $false

Example: To enable source/destination checking

Use the Edit-EC2NetworkInterfaceAttribute cmdlet.

Edit-EC2NetworkInterfaceAttribute `
    -NetworkInterfaceId eni-1234567890abcdef0 `
    -SourceDestCheck $true

Example: To modify idle connection tracking timeouts

Use the Edit-EC2NetworkInterfaceAttribute cmdlet. For more information, see Idle connection tracking timeout.

Edit-EC2NetworkInterfaceAttribute `
    -NetworkInterfaceId eni-1234567890abcdef0 `
    -ConnectionTrackingSpecification_TcpEstablishedTimeout 172800 `
    -ConnectionTrackingSpecification_UdpStreamTimeout 90 `
    -ConnectionTrackingSpecification_UdpTimeout 60

Manage IP addresses

Multiple network interfaces

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