Bring your own IP addresses (BYOIP) in Amazon EC2 - Amazon Elastic Compute Cloud

Bring your own IP addresses (BYOIP) in Amazon EC2

You can bring part or all of your publicly routable IPv4 or IPv6 address range from your on-premises network to your AWS account. You continue to own the address range, but AWS advertises it on the internet by default. After you bring the address range to AWS, it appears in your AWS account as an address pool.

BYOIP is not available in all Regions and for all resources. For a list of supported Regions and resources, see the FAQ for Bring Your Own IP.

Note

The following steps describe how to bring your own IP address range for use in Amazon EC2 only. For steps to bring your own IP address range for use in AWS Global Accelerator, see Bring your own IP addresses (BYOIP) in the AWS Global Accelerator Developer Guide.

Requirements and quotas

  • The address range must be registered with your regional internet registry (RIR), such as the American Registry for Internet Numbers (ARIN), Réseaux IP Européens Network Coordination Centre (RIPE), or Asia-Pacific Network Information Centre (APNIC). It must be registered to a business or institutional entity and cannot be registered to an individual person.

  • The most specific IPv4 address range that you can bring is /24.

  • The most specific IPv6 address range that you can bring is /48 for CIDRs that are publicly advertised, and /56 for CIDRs that are not publicly advertised.

  • You can bring each address range to one Region at a time.

  • You can bring a total of five IPv4 and IPv6 address ranges per Region to your AWS account.

  • You cannot share your IP address range with other accounts using AWS Resource Access Manager (AWS RAM).

  • The addresses in the IP address range must have a clean history. We might investigate the reputation of the IP address range and reserve the right to reject an IP address range if it contains an IP address that has a poor reputation or is associated with malicious behavior.

  • You must own the IP address that you use. This means that only the following are supported:

    • ARIN - "Direct Allocation" and "Direct Assignment" network types

    • RIPE - "ALLOCATED PA", "LEGACY", "ASSIGNED PI", and "ALLOCATED-BY-RIR" allocation statuses

    • APNIC – "ALLOCATED PORTABLE" and "ASSIGNED PORTABLE" allocation statuses

Configure your BYOIP address range

The process to configure BYOIP has these phases:

  • Preparation

    For authentication purposes, create an RSA key pair and use it to generate a self-signed X.509 certificate.

  • RIR configuration

    Register with the Resource Public Key Infrastructure (RPKI) of your RIR, and file a Route Origin Authorization (ROA) that defines the desired address range, the autonomous system numbers (ASNs) allowed to advertise the address range, and an expiration date. Upload the self-signed certificate to your RDAP record comments.

  • Amazon configuration

    Sign a CIDR authorization context message with the private RSA key that you created, and upload the message and signature to Amazon using the AWS Command Line Interface.

To bring on multiple address ranges, you must repeat this process with each address range. Bringing on an address range has no effect on any address ranges that you brought on previously.

To configure BYOIP, complete the following tasks. For some tasks, you run Linux commands. On Windows, you can use the Windows Subsystem for Linux to run the Linux commands.

Create a key pair and certificate

Use the following procedure to create a self-signed X.509 certificate and add it to the RDAP record for your RIR. The openssl commands require OpenSSL version 1.0.2 or later.

Copy the commands below and replace only the placeholder values (in colored italic text).

To create a self-signed X.509 certificate and add it to the RDAP record

This procedure follows the best practice of encrypting your private RSA key and requiring a pass phrase to access it.

  1. Generate an RSA 2048-bit key pair as shown in the following.

    $ openssl genpkey -aes256 -algorithm RSA -pkeyopt rsa_keygen_bits:2048 -out private-key.pem

    The -aes256 parameter specifies the algorithm used to encrypt the private key. The command returns the following output, including prompts to set a pass phrase:

    ......+++ .+++ Enter PEM pass phrase: xxxxxxx Verifying - Enter PEM pass phrase: xxxxxxx

    You can inspect the key using the following command:

    $ openssl pkey -in private-key.pem -text

    This returns a pass-phrase prompt and the contents of the key, which shouild be similar to the following:

    Enter pass phrase for private-key.pem: xxxxxxx -----BEGIN PRIVATE KEY----- MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDFBXHRI4HVKAhh 3seiciooizCRTbJe1+YsxNTja4XyKypVGIFWDGhZs44FCHlPOOSVJ+NqP74w96oM 7DPS3xo9kaQyZBFn2YEp2EBq5vf307KHNRmZZUmkn0zHOSEpNmY2fMxISBxewlxR FAniwmSd/8TDvHJMY9FvAIvWuTsv5l0tJKk+a91K4+tO3UdDR7Sno5WXExfsBrW3 g1ydo3TBsx8i5/YiVOcNApy7ge2/FiwY3aCXJB6r6nuF6H8mRgI4r4vkMRsOlAhJ DnZPNeweboo+K3Q3lwbgbmOKD/z9svk8N/+hUTBtIX0fRtbG+PLIw3xWRHGrMSn2 BzsPVuDLAgMBAAECggEACiJUj2hfJkKv47Dc3es3Zex67A5uDVjXmxfox2Xhdupn fAcNqAptV6fXt0SPUNbhUxbBKNbshoJGufFwXPli1SXnpzvkdU4Hyco4zgbhXFsE RNYjYfOGzTPwdBLpNMB6k3Tp4RHse6dNrlH0jDhpioL8cQEBdBJyVF5X0wymEbmV mC0jgH/MxsBAPWW6ZKicg9ULMlWiAZ3MRAZPjHHgpYkAAsUWKAbCBwVQcVjGO59W jfZjzTX5pQtVVH68ruciH88DTZCwjCkjBhxg+OIkJBLE5wkh82jIHSivZ63flwLw z+E0+HhELSZJrn2MY6Jxmik3qNNUOF/Z+3msdj2luQKBgQDjwlC/3jxp8zJy6P8o JQKv7TdvMwUj4VSWOHZBHLv4evJaaia0uQjIo1UDa8AYitqhX1NmCCehGH8yuXj/ v6V3CzMKDkmRr1NrONnSz5QsndQ04Z6ihAQlPmJ96g4wKtgoC7AYpyP0g1a+4/sj b1+o3YQI4pD/F71c+qaztH7PRwKBgQDdc23yNmT3+Jyptf0fKjEvONK+xwUKzi9c L/OzBq5yOIC1Pz2T85gOe1i8kwZws+xlpG6uBT6lmIJELd0k59FyupNu4dPvX5SD 6GGqdx4jk9KvI74usGeOBohmF0phTHkrWKBxXiyT0oS8zjnJlEn8ysIpGgO28jjr LpaHNZ/MXQKBgQDfLNcnS0LzpsS2aK0tzyZU8SMyqVHOGMxj7quhneBq2T6FbiLD T9TVlYaGNZ0j71vQaLI19qOubWymbautH0Op5KV8owdf4+bf1/NJaPIOzhDUSIjD Qo01WW31Z9XDSRhKFTnWzmCjBdeIcajyzf10YKsycaAW9lItu8aBrMndnQKBgQDb nNp/JyRwqjOrNljk7DHEs+SD39kHQzzCfqd+dnTPv2sc06+cpym3yulQcbokULpy fmRo3bin/pvJQ3aZX/Bdh9woTXqhXDdrrSwWInVYMQPyPk8f/D9mIOJp5FUWMwHD U+whIZSxsEeE+jtixlWtheKRYkQmzQZXbWdIhYyI3QKBgD+F/6wcZ85QW8nAUykA 3WrSIx/3cwDGdm4NRGct8ZOZjTHjiy9ojMOD1L7iMhRQ/3k3hUsin5LDMp/ryWGG x4uIaLat40kiC7T4I66DM7P59euqdz3w0PD+VU+h7GSivvsFDdySUt7bNK0AUVLh dMJfWxDN8QV0b5p3WuWH1U8B -----END PRIVATE KEY----- Private-Key: (2048 bit) modulus: 00:c5:05:71:d1:23:81:d5:28:08:61:de:c7:a2:72: 2a:28:8b:30:91:4d:b2:5e:d7:e6:2c:c4:d4:e3:6b: 85:f2:2b:2a:55:18:81:56:0c:68:59:b3:8e:05:08: 79:4f:38:e4:95:27:e3:6a:3f:be:30:f7:aa:0c:ec: 33:d2:df:1a:3d:91:a4:32:64:11:67:d9:81:29:d8: 40:6a:e6:f7:f7:d3:b2:87:35:19:99:65:49:a4:9f: 4c:c7:39:21:29:36:66:36:7c:cc:48:48:1c:5e:c2: 5c:51:14:09:e2:c2:64:9d:ff:c4:c3:bc:72:4c:63: d1:6f:00:8b:d6:b9:3b:2f:e6:5d:2d:24:a9:3e:6b: dd:4a:e3:eb:4e:dd:47:43:47:b4:a7:a3:95:97:13: 17:ec:06:b5:b7:83:5c:9d:a3:74:c1:b3:1f:22:e7: f6:22:54:e7:0d:02:9c:bb:81:ed:bf:16:2c:18:dd: a0:97:24:1e:ab:ea:7b:85:e8:7f:26:46:02:38:af: 8b:e4:31:1b:0e:94:08:49:0e:76:4f:35:ec:1e:6e: 8a:3e:2b:74:37:97:06:e0:6e:63:8a:0f:fc:fd:b2: f9:3c:37:ff:a1:51:30:6d:21:7d:1f:46:d6:c6:f8: f2:c8:c3:7c:56:44:71:ab:31:29:f6:07:3b:0f:56: e0:cb publicExponent: 65537 (0x10001) privateExponent: 0a:22:54:8f:68:5f:26:42:af:e3:b0:dc:dd:eb:37: 65:ec:7a:ec:0e:6e:0d:58:d7:9b:17:e8:c7:65:e1: 76:ea:67:7c:07:0d:a8:0a:6d:57:a7:d7:b7:44:8f: 50:d6:e1:53:16:c1:28:d6:ec:86:82:46:b9:f1:70: 5c:f9:62:d5:25:e7:a7:3b:e4:75:4e:07:c9:ca:38: ce:06:e1:5c:5b:04:44:d6:23:61:f3:86:cd:33:f0: 74:12:e9:34:c0:7a:93:74:e9:e1:11:ec:7b:a7:4d: ae:51:f4:8c:38:69:8a:82:fc:71:01:01:74:12:72: 54:5e:57:d3:0c:a6:11:b9:95:98:2d:23:80:7f:cc: c6:c0:40:3d:65:ba:64:a8:9c:83:d5:0b:32:55:a2: 01:9d:cc:44:06:4f:8c:71:e0:a5:89:00:02:c5:16: 28:06:c2:07:05:50:71:58:c6:3b:9f:56:8d:f6:63: cd:35:f9:a5:0b:55:54:7e:bc:ae:e7:22:1f:cf:03: 4d:90:b0:8c:29:23:06:1c:60:f8:e2:24:24:12:c4: e7:09:21:f3:68:c8:1d:28:af:67:ad:df:97:02:f0: cf:e1:34:f8:78:44:2d:26:49:ae:7d:8c:63:a2:71: 9a:29:37:a8:d3:54:38:5f:d9:fb:79:ac:76:3d:a5: b9 prime1: 00:e3:c2:50:bf:de:3c:69:f3:32:72:e8:ff:28:25: 02:af:ed:37:6f:33:05:23:e1:54:96:38:76:41:1c: bb:f8:7a:f2:5a:6a:26:b4:b9:08:c8:a3:55:03:6b: c0:18:8a:da:a1:5f:53:66:08:27:a1:18:7f:32:b9: 78:ff:bf:a5:77:0b:33:0a:0e:49:91:af:53:6b:38: d9:d2:cf:94:2c:9d:d4:34:e1:9e:a2:84:04:25:3e: 62:7d:ea:0e:30:2a:d8:28:0b:b0:18:a7:23:f4:83: 56:be:e3:fb:23:6f:5f:a8:dd:84:08:e2:90:ff:17: bd:5c:fa:a6:b3:b4:7e:cf:47 prime2: 00:dd:73:6d:f2:36:64:f7:f8:9c:a9:b5:fd:1f:2a: 31:2f:38:d2:be:c7:05:0a:ce:2f:5c:2f:f3:b3:06: ae:72:38:80:b5:3f:3d:93:f3:98:0e:7b:58:bc:93: 06:70:b3:ec:65:a4:6e:ae:05:3e:a5:98:82:44:2d: dd:24:e7:d1:72:ba:93:6e:e1:d3:ef:5f:94:83:e8: 61:aa:77:1e:23:93:d2:af:23:be:2e:b0:67:8e:06: 88:66:17:4a:61:4c:79:2b:58:a0:71:5e:2c:93:d2: 84:bc:ce:39:c9:94:49:fc:ca:c2:29:1a:03:b6:f2: 38:eb:2e:96:87:35:9f:cc:5d exponent1: 00:df:2c:d7:27:4b:42:f3:a6:c4:b6:68:ad:2d:cf: 26:54:f1:23:32:a9:51:ce:18:cc:63:ee:ab:a1:9d: e0:6a:d9:3e:85:6e:22:c3:4f:d4:d5:95:86:86:35: 9d:23:ef:5b:d0:68:b2:35:f6:a3:ae:6d:6c:a6:6d: ab:ad:1f:43:a9:e4:a5:7c:a3:07:5f:e3:e6:df:d7: f3:49:68:f2:0e:ce:10:d4:48:88:c3:42:8d:35:59: 6d:f5:67:d5:c3:49:18:4a:15:39:d6:ce:60:a3:05: d7:88:71:a8:f2:cd:fd:74:60:ab:32:71:a0:16:f6: 52:2d:bb:c6:81:ac:c9:dd:9d exponent2: 00:db:9c:da:7f:27:24:70:aa:33:ab:36:58:e4:ec: 31:c4:b3:e4:83:df:d9:07:43:3c:c2:7e:a7:7e:76: 74:cf:bf:6b:1c:d3:af:9c:a7:29:b7:ca:e9:50:71: ba:24:50:ba:72:7e:64:68:dd:b8:a7:fe:9b:c9:43: 76:99:5f:f0:5d:87:dc:28:4d:7a:a1:5c:37:6b:ad: 2c:16:22:75:58:31:03:f2:3e:4f:1f:fc:3f:66:20: e2:69:e4:55:16:33:01:c3:53:ec:21:21:94:b1:b0: 47:84:fa:3b:62:c6:55:ad:85:e2:91:62:44:26:cd: 06:57:6d:67:48:85:8c:88:dd coefficient: 3f:85:ff:ac:1c:67:ce:50:5b:c9:c0:53:29:00:dd: 6a:d2:23:1f:f7:73:00:c6:76:6e:0d:44:67:2d:f1: 93:99:8d:31:e3:8b:2f:68:8c:c3:83:d4:be:e2:32: 14:50:ff:79:37:85:4b:22:9f:92:c3:32:9f:eb:c9: 61:86:c7:8b:88:68:b6:ad:e3:49:22:0b:b4:f8:23: ae:83:33:b3:f9:f5:eb:aa:77:3d:f0:d0:f0:fe:55: 4f:a1:ec:64:a2:be:fb:05:0d:dc:92:52:de:db:34: ad:00:51:52:e1:74:c2:5f:5b:10:cd:f1:05:74:6f: 9a:77:5a:e5:87:d5:4f:01

    Keep your private key in a secure location when it is not in use.

  2. Generate your public key from the private key as follows. You will use this later to test that your signed authorization message validates correctly.

    $ openssl rsa -in private-key.pem -pubout > public-key.pem

    On inspection, your public key should look like this:

    $ cat public-key.pem -----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxQVx0SOB1SgIYd7HonIq KIswkU2yXtfmLMTU42uF8isqVRiBVgxoWbOOBQh5TzjklSfjaj++MPeqDOwz0t8a PZGkMmQRZ9mBKdhAaub399OyhzUZmWVJpJ9MxzkhKTZmNnzMSEgcXsJcURQJ4sJk nf/Ew7xyTGPRbwCL1rk7L+ZdLSSpPmvdSuPrTt1HQ0e0p6OVlxMX7Aa1t4NcnaN0 wbMfIuf2IlTnDQKcu4HtvxYsGN2glyQeq+p7heh/JkYCOK+L5DEbDpQISQ52TzXs Hm6KPit0N5cG4G5jig/8/bL5PDf/oVEwbSF9H0bWxvjyyMN8VkRxqzEp9gc7D1bg ywIDAQAB -----END PUBLIC KEY-----
  3. Generate an X.509 certificate using the key pair created in the previous. In this example, the certificate expires in 365 days, after which time it cannot be trusted. Be sure to set the expiration appropriately. The tr -d "\n" command strips newline characters (line breaks) from the output. You need to provide a Common Name when prompted, but the other fields can be left blank.

    $ openssl req -new -x509 -key private-key.pem -days 365 | tr -d "\n" > certificate.pem

    This results in output similar to the following:

    Enter pass phrase for private-key.pem: xxxxxxx You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) []: State or Province Name (full name) []: Locality Name (eg, city) []: Organization Name (eg, company) []: Organizational Unit Name (eg, section) []: Common Name (eg, fully qualified host name) []:example.com Email Address []:

    You can inspect the certificate with the following command:

    $ cat certificate.pem

    The output should be a long, PEM-encoded string without line breaks, prefaced by -----BEGIN CERTIFICATE----- and followed by -----END CERTIFICATE-----.

Create an ROA object in your RIR

Create an ROA object to authorize Amazon ASNs 16509 and 14618 to advertise your address range, as well as the ASNs that are currently authorized to advertise the address range. You must set the maximum length to the size of the smallest prefix that you want to bring (for example, /24). It might take up to 24 hours for the ROA to become available to Amazon. For more information, consult your RIR:

Update the RDAP record in your RIR

Add the certificate that you previously created to the RDAP record for your RIR. Be sure to include the -----BEGIN CERTIFICATE----- and -----END CERTIFICATE----- strings before and after the encoded portion. All of this content must be on a single, long line. The procedure for updating RDAP depends on your RIR:

  • For ARIN, add the certificate in the "Public Comments" section for your address range. Do not add it to the comments section for your organization.

  • For RIPE, add the certificate as a new "descr" field for your address range. Do not add it to the comments section for your organization.

  • For APNIC, email the public key to helpdesk@apnic.net to manually add it to the "remarks" field for your address range. Send the email using the APNIC authorized contact for the IP addresses.

Provision the address range in AWS

When you provision an address range for use with AWS, you are confirming that you own the address range and are authorizing Amazon to advertise it. We also verify that you own the address range through a signed authorization message. This message is signed with the self-signed X.509 key pair that you used when updating the RDAP record with the X.509 certificate. AWS requires a cryptographically signed authorization message that it presents to the RIR. The RIR authenticates the signature against the certificate that you added to RDAP, and checks the authorization details against the ROA.

To provision the address range

  1. Compose message

    Compose the plaintext authorization message. The format of the message is as follows, where the date is the expiry date of the message:

    1|aws|account|cidr|YYYYMMDD|SHA256|RSAPSS

    Replace the account number, address range, and expiry date with your own values to create a message resembling the following:

    1|aws|0123456789AB|198.51.100.0/24|20211231|SHA256|RSAPSS

    This is not to be confused with an ROA message, which has a similar appearance.

  2. Sign message

    Sign the plaintext message using the private key that you created previously. The signature returned by this command is a long string that you need to use in the next step.

    Important

    We recommend that you copy and paste this command. Except for the message content, do not modify or replace any of the values.

    $ echo -n "1|aws|123456789012|198.51.100.0/24|20211231|SHA256|RSAPSS" | openssl dgst -sha256 -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:-1 -sign private-key.pem -keyform PEM | openssl base64 | tr -- '+=/' '-_~' | tr -d "\n"
  3. Provision address

    Use the AWS CLI provision-byoip-cidr command to provision the address range. The --cidr-authorization-context option uses the message and signature strings that you created previously.

    aws ec2 provision-byoip-cidr --cidr address-range --cidr-authorization-context Message="message",Signature="signature"

    Provisioning an address range is an asynchronous operation, so the call returns immediately, but the address range is not ready to use until its status changes from pending-provision to provisioned.

  4. Monitor progress

    It can take up to three weeks to complete the provisioning process for publicly advertisable ranges. Use the describe-byoip-cidrs command to monitor progress, as in this example:

    aws ec2 describe-byoip-cidrs --max-results 5

    If there are issues during provisioning and the status goes to failed-provision, you must run the provision-byoip-cidr command again after the issues have been resolved.

Provision an IPv6 address range that's not publicly advertised

By default, an address range is provisioned to be publicly advertised to the internet. You can provision an IPv6 address range that will not be publicly advertised. For routes that are not publicly advertisable, the provisioning process generally completes within minutes. When you associate an IPv6 CIDR block from a non-public address range with a VPC, the IPv6 CIDR can only be accessed through an AWS Direct Connect connection.

An ROA is not required to provision a non-public address range.

Important

You can only specify whether an address range is publicly advertised during provisioning. You cannot change the advertisable status later on.

To provision an IPv6 address range that will not be publicly advertised, use the following provision-byoip-cidr command.

aws ec2 provision-byoip-cidr --cidr address-range --cidr-authorization-context Message="$text_message",Signature="$signed_message" --no-publicly-advertisable

Advertise the address range through AWS

After the address range is provisioned, it is ready to be advertised. You must advertise the exact address range that you provisioned. You can't advertise only a portion of the provisioned address range.

If you provisioned an IPv6 address range that will not be publicly advertised, you do not need to complete this step.

We recommend that you stop advertising the address range from other locations before you advertise it through AWS. If you keep advertising your IP address range from other locations, we can't reliably support it or troubleshoot issues. Specifically, we can't guarantee that traffic to the address range will enter our network.

To minimize down time, you can configure your AWS resources to use an address from your address pool before it is advertised, and then simultaneously stop advertising it from the current location and start advertising it through AWS. For more information about allocating an Elastic IP address from your address pool, see Allocate an Elastic IP address.

Limitations

  • You can run the advertise-byoip-cidr command at most once every 10 seconds, even if you specify different address ranges each time.

  • You can run the withdraw-byoip-cidr command at most once every 10 seconds, even if you specify different address ranges each time.

To advertise the address range, use the following advertise-byoip-cidr command.

aws ec2 advertise-byoip-cidr --cidr address-range

To stop advertising the address range, use the following withdraw-byoip-cidr command.

aws ec2 withdraw-byoip-cidr --cidr address-range

Deprovision the address range

To stop using your address range with AWS, first release any Elastic IP addresses and disassociate any IPv6 CIDR blocks that are still allocated from the address pool. Then stop advertising the address range, and finally, deprovision the address range.

You cannot deprovision a portion of the address range. If you want to use a more specific address range with AWS, deprovision the entire address range and provision a more specific address range.

(IPv4) To release each Elastic IP address, use the following release-address command.

aws ec2 release-address --allocation-id eipalloc-12345678abcabcabc

(IPv6) To disassociate an IPv6 CIDR block, use the following disassociate-vpc-cidr-block command.

aws ec2 disassociate-vpc-cidr-block --association-id vpc-cidr-assoc-12345abcd1234abc1

To stop advertising the address range, use the following withdraw-byoip-cidr command.

aws ec2 withdraw-byoip-cidr --cidr address-range

To deprovision the address range, use the following deprovision-byoip-cidr command.

aws ec2 deprovision-byoip-cidr --cidr address-range

It can take up to a day to deprovision an address range.

Work with your address range

You can view and use the IPv4 and IPv6 address ranges that you've provisioned in your account.

IPv4 address ranges

You can create an Elastic IP address from your IPv4 address pool and use it with your AWS resources, such as EC2 instances, NAT gateways, and Network Load Balancers.

To view information about the IPv4 address pools that you've provisioned in your account, use the following describe-public-ipv4-pools command.

aws ec2 describe-public-ipv4-pools

To create an Elastic IP address from your IPv4 address pool, use the allocate-address command. You can use the --public-ipv4-pool option to specify the ID of the address pool returned by describe-byoip-cidrs. Or you can use the --address option to specify an address from the address range that you provisioned.

IPv6 address ranges

To view information about the IPv6 address pools that you've provisioned in your account, use the following describe-ipv6-pools command.

aws ec2 describe-ipv6-pools

To create a VPC and specify an IPv6 CIDR from your IPv6 address pool, use the following create-vpc command. To let Amazon choose the IPv6 CIDR from your IPv6 address pool, omit the --ipv6-cidr-block option.

aws ec2 create-vpc --cidr-block 10.0.0.0/16 --ipv6-cidr-block ipv6-cidr --ipv6-pool pool-id

To associate an IPv6 CIDR block from your IPv6 address pool with a VPC, use the following associate-vpc-cidr-block command. To let Amazon choose the IPv6 CIDR from your IPv6 address pool, omit the --ipv6-cidr-block option.

aws ec2 associate-vpc-cidr-block --vpc-id vpc-123456789abc123ab --ipv6-cidr-block ipv6-cidr --ipv6-pool pool-id

To view your VPCs and the associated IPv6 address pool information, use the describe-vpcs command. To view information about associated IPv6 CIDR blocks from a specific IPv6 address pool, use the following get-associated-ipv6-pool-cidrs command.

aws ec2 get-associated-ipv6-pool-cidrs --pool-id pool-id

If you disassociate the IPv6 CIDR block from your VPC, it's released back into your IPv6 address pool.

For more information about working with IPv6 CIDR blocks in the VPC console, see Working with VPCs and Subnets in the Amazon VPC User Guide.

Learn more

For more information, see the AWS Online Tech talk Deep Dive on Bring Your Own IP.