User:PaulNetworker/sandbox
Bring Your Own IP
[edit]Bring Your Own IP (often abbreviated **BYOIP**) is a networking practice in which an organization uses its own public Internet Protocol (IP) address ranges, rather than those assigned by a cloud or hosting provider. The organization’s prefixes are imported and advertised via the provider’s network, while ownership remains with the organization. BYOIP enables continuity of addressing, retention of IP reputation, and compliance with contractual or regulatory requirements.[1][2][3]
Background
[edit]Public IP address blocks and Autonomous System Numbers (ASNs) are allocated by the five Regional Internet Registries (RIRs). Traditionally, providers assign addresses from their own pools and handle BGP advertisement. BYOIP allows customer-owned prefixes to be advertised by the provider, avoiding the need to renumber systems during migrations or hybrid deployments.[4]
Motivations include:
- Maintaining continuity of service and avoiding reconfiguration of DNS, firewalls, or access control lists.
- Preserving IP address reputation for services such as email deliverability or API allow-listing.[5]
- Meeting regulatory or contractual obligations requiring organizational control over address space.
- Enabling multi-cloud or hybrid cloud deployments with consistent external IPs.
BYOIP differs from related concepts such as IP leasing (temporary rental of prefixes), anycast (advertising the same prefix from multiple locations), and BYOD (unrelated to addressing).
Technical overview
[edit]Ownership and verification
[edit]- Organizations must demonstrate control of the IP block via RIR records (WHOIS/RDAP).[6]
- Providers may require a Letter of Authorization (LoA) or publication of an X.509 certificate in RIR metadata.[1]
Routing and advertisement
[edit]- Prefixes are advertised in BGP by the provider’s ASN or, in some cases, by the customer’s ASN.
- Route objects in Internet Routing Registries (IRRs) may need updating to reflect the correct origin ASN.[7]
- Providers require that prefixes are not simultaneously announced elsewhere to avoid routing conflicts.[2]
Security mechanisms
[edit]- RPKI and ROA records are often mandatory to validate prefix origin.[8]
- LoAs are used to formally authorize providers to originate advertisements.[9]
- Some providers also verify reverse DNS consistency.[2]
Constraints and timing
[edit]- Minimum prefix size requirements (e.g., IPv4 /24, IPv6 /48) are common.[1]
- IPv6 support varies among providers.[2]
- Provisioning and advertisement processes may take several weeks.[7]
Use cases
[edit]- Cloud migration while retaining existing IPs.
- Preserving IP reputation for mail, APIs, and security allow-lists.
- Compliance with regulations requiring stable addressing or geolocation.
- Hybrid cloud and multi-cloud consistency.
- Anycast or edge network deployments for performance and resilience.[5]
Research and challenges
[edit]Independent studies have examined adoption and risks in BYOIP-relevant mechanisms:
- A 2023 *RoVista* study found that although ROA coverage is increasing, many networks still do not enforce Route Origin Validation (ROV).[10]
- APNIC Labs reported that while ROA signing has grown significantly, many Autonomous Systems still propagate invalid routes due to limited filtering.[11]
- An IFIP 2021 study using RIPE Atlas probes inferred that only a minority of ASes directly enforce ROV, leaving room for route hijacks.[12]
- A 2024 systematization paper estimated that nearly half of global prefixes are covered by RPKI, but only about 27 % of networks enforce validation, highlighting ongoing risks for BYOIP deployments.[13]
These findings suggest operational challenges: misconfigured ROAs may cause outages; weak ROV adoption limits protection against prefix hijacking; and IPv4 scarcity or poor reputation may restrict BYOIP eligibility.
See also
[edit]- Border Gateway Protocol
- Resource Public Key Infrastructure
- Route Origin Authorization
- Autonomous system (Internet)
- Internet Routing Registry
- Anycast
References
[edit]- ^ a b c "Bring Your Own IP addresses (BYOIP) to Amazon EC2". Amazon Web Services. Retrieved 23 September 2025.
- ^ a b c d "Bring your own IP addresses (BYOIP)". Google Cloud. Retrieved 23 September 2025.
- ^ "Custom IP address prefix (BYOIP) – Azure Virtual Network". Microsoft Learn. Retrieved 23 September 2025.
- ^ "Bring Your Own IP Address to the Cloud (BYOIP)" (PDF). Internet2. 2022. Retrieved 23 September 2025.
- ^ a b "What is Bring Your Own IP (BYOIP)?". Zenlayer. Retrieved 23 September 2025.
- ^ "Bring Your Own IP address space to use with resources in Oracle Cloud Infrastructure". Oracle. Retrieved 23 September 2025.
- ^ a b "Bring Your Own IP (BYOIP) feature". Alibaba Cloud. Retrieved 23 September 2025.
- ^ "Prepare to bring your IP address range to your AWS account". AWS Global Accelerator. Retrieved 23 September 2025.
- ^ "Get started – BYOIP". Cloudflare. Retrieved 23 September 2025.
- ^ "RoVista: Measuring and Analyzing the Route Origin Validation in RPKI" (PDF). MANRS / IMC 2023. Retrieved 23 September 2025.
- ^ "How we measure RPKI ROA signing and route origination validation". APNIC Labs. 2023. Retrieved 23 September 2025.
- ^ "Revisiting RPKI Route Origin Validation on the Data Plane" (PDF). IFIP TMA 2021. Retrieved 23 September 2025.
- ^ "SoK: An Introspective Analysis of RPKI Security". 2024.
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External links
[edit]- byoip.info – Portal aggregating BYOIP provider documentation and resources