Ensuring Continuity in AWS Cloud Migration with AWS Bring Your Own IP (BYOIP)

Overview

Businesses can use their IP addresses and connect them to their Amazon EC2 instances in the AWS environment due to Amazon EC2’s BYOIP functionality. Public IP addresses were previously assigned by AWS automatically to instances from Amazon Managed IP address pools while using Amazon EC2. However, the firms’ control over IP address management and mobility was diminished. Businesses can use their IP addresses, allowing them more flexibility and control over their IP resources. In this blog, we will go into great detail about the BYOIP functionality, its advantages and applications, and how to set it up in your AWS setup.

Introduction

Businesses’ need for networking expands along with them. For smooth operations, effective IP address management and continuous connectivity are essential.

Problems

It can be difficult to migrate apps to the cloud if they communicate with other systems using hardcoded, whitelisted IP addresses. Changing these IPs throughout the migration process might cause major delays, necessitate close collaboration with partners to change setups, and damage integrations. Businesses can use AWS Bring Your Own IP (BYOIP) to transfer their current IP addresses to AWS, which provides a solution. This prevents the need to reconfigure whitelisted IPs, speeds up migration timelines, guarantees continuous connectivity with other systems, and upholds regulatory compliance related to particular IP ranges. Using the dependable and scalable architecture of AWS, BYOIP streamlines cloud migration.

Advantages of BYOIP

1. Smooth Migration
   Organizations can move workloads to AWS without requiring them to modify their current IP addresses. This guarantees that services will not be severely disrupted.
   2. Maintain Brand Recognition
   Keeping your IP addresses may prevent modifications to DNS records or whitelisting procedures and preserve consistent branding.
   3. Regulatory and Compliance Requirements
   Stringent compliance requirements in several businesses require using particular IP address ranges. BYOIP aids in fulfilling these demands.
   4. Streamlined Integration
   BYOIP easily connects with AWS services like Route 53, Virtual Private Cloud (VPC), and Elastic IPs (EIPs).

The concept

Phase of preparation

[1] Create a private key to generate a self-signed X.509 certificate for authentication. Only the provisioning stage makes use of this certificate. After provisioning, you can delete the certificate from your RIR’s record.

Phase of RIR setup

[2] Add the self-signed certificate to the comments section of your RDAP entry.

[3] In your RIR, create a ROA object. The ROA specifies an expiration date for registering with your RIR’s Resource Public Key Infrastructure (RPKI), the desired address range, and the Autonomous System Numbers (ASNs) permitted to advertise the address range.

Implementation

1. Create an X.509 certificate and a private key.

• By following these steps, create a self-signed X.509 certificate, then add it to your RIR’s RDAP record. The address range is authenticated with the RIR using this key pair. OpenSSL 1.0.2 or later is required to use the openssl commands.
• Create a 2048-bit RSA private key using the instructions below.
  -aes256 -algorithm RSA -pkeyopt rsa_keygen_bits:2048 -out private-key.pem $ openssl genpkey

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

  The algorithm to encrypt the private key is specified by the -aes256 argument.

2. Using the private key generated in the previous step, construct an X.509 certificate. In this case, the certificate is untrustworthy once it expires in 365 days. Make sure the expiration is set correctly. The certificate’s validity must be limited to the time needed for provisioning. After provisioning, you can delete the certificate from your RIR’s file.

The output is stripped of newline characters (line breaks) by the tr -d “\n” command. You can leave the other fields empty, but when asked, you must enter your Common Name.

3. In your RIR, create a ROA object.
   Create an ROA object to allow the Amazon ASNs 16509 and 14618 to advertise your address range and the ASNs that are already permitted to do so. Authorize ASN 8987 for the AWS GovCloud (US) Regions rather than 16509 and 14618. The maximum length needs to be adjusted to match the size of the CIDR you bring. /24 is the most specific IPv4 prefix you may use. The most precise range of IPv6 addresses you can bring is /48 for publicly advertised CIDRs and /60 for non-publicly advertised CIDRs.
   The ROA may not be available to Amazon for up to 24 hours.

Availability

With this regional expansion, BYOIP is available in the Asia Pacific (Hong Kong), Asia Pacific (Mumbai), Asia Pacific (Sydney), Asia Pacific (Tokyo), Asia Pacific (Singapore), Canada (Central), EU (Dublin), EU (London), EU (Frankfurt), South America (Sao Paulo), US West (Northern California), US East (N. Virginia), US East (Ohio), US West (Oregon), GovCloud (US-East), and GovCloud (US-West) AWS Regions.

Conclusion

By utilizing AWS’s worldwide infrastructure, Bring Your Own IP (BYOIP) enables companies to easily meet compliance requirements, preserve brand identification, and shift workloads. BYOIP may greatly streamline integration and migration for businesses of all sizes with proper preparation and implementation.

Drop a query if you have any questions regarding Bring Your Own IP and we will get back to you quickly.

About CloudThat

CloudThat is a leading provider of Cloud Training and Consulting services with a global presence in India, the USA, Asia, Europe, and Africa. Specializing in AWS, Microsoft Azure, GCP, VMware, Databricks, and more, the company serves mid-market and enterprise clients, offering comprehensive expertise in Cloud Migration, Data Platforms, DevOps, IoT, AI/ML, and more.

CloudThat is the first Indian Company to win the prestigious Microsoft Partner 2024 Award and is recognized as a top-tier partner with AWS and Microsoft, including the prestigious ‘Think Big’ partner award from AWS and the Microsoft Superstars FY 2023 award in Asia & India. Having trained 650k+ professionals in 500+ cloud certifications and completed 300+ consulting projects globally, CloudThat is an official AWS Advanced Consulting Partner, Microsoft Gold Partner, AWS Training Partner, AWS Migration Partner, AWS Data and Analytics Partner, AWS DevOps Competency Partner, AWS GenAI Competency Partner, Amazon QuickSight Service Delivery Partner, Amazon EKS Service Delivery Partner,  AWS Microsoft Workload Partners, Amazon EC2 Service Delivery Partner, Amazon ECS Service Delivery Partner, AWS Glue Service Delivery Partner, Amazon Redshift Service Delivery Partner, AWS Control Tower Service Delivery Partner, AWS WAF Service Delivery Partner, Amazon CloudFront, Amazon OpenSearch, AWS DMS and many more.