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IPv4 IXP Address Policy. APNIC Policy SIG Meeting Taipei, August 2001 Philip Smith <pfs@cisco.com>. The Problem. IXPs require IPv4 Address Space For transit LAN to which participants/members connect their routers
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IPv4 IXP Address Policy APNIC Policy SIG Meeting Taipei, August 2001 Philip Smith <pfs@cisco.com>
The Problem • IXPs require IPv4 Address Space • For transit LAN to which participants/members connect their routers • For services LANs which host systems and infrastructure necessary to run the IXP • APNIC has no criteria for assigning IPv4 address space to IXPs
Background • IXPs are using address space from a variety of sources: • Some apply to APNIC and fail under minimum criteria rules • Some receive address space from membership which can lead to conflicts of interest • Some receive address space from the Exchange Point address block administered by EP.net • etc
Current Status • APNIC • Has no distinct policy for IXPs • ARIN • Makes micro assignments no smaller than /24 to critical infrastructure: IXPs, RIRs, gTLD, ccTLD and ICANN • IXP address space assigned on condition it is not announced to global Internet • RIPE NCC • Requests for PI space handled through existing LIR; no special criteria for IXPs
Proposal • IXPs can apply to APNIC for address space and receive micro assignment, no smaller than /24 • For IXP transit LAN • For Internet Infrastructure Critical Services
Detail One • Address space assigned to IXPs for transit LAN comes out of one reserved block specifically for IXPs • Makes address block well known in region • Technically efficient for ISPs to implement appropriate filters
Detail Two • Address space assigned to the IXP transit LAN must NOT be announced to the global Internet • Accepted best current practice by IXP operators to avoid bandwidth fraud and denial of service attacks • Same as ARIN policy
Detail Three • Hosting Internet Infrastructure Critical Services (IICS) at IXPs • IXP will receive at least one /24 to cover IICS • This address space can be announced to the global Internet • Assignment made on the understanding that the IICS are not on the same logical network as the IXP transit LAN
Detail Four • Address space for IICS comes out of one reserved block for specifically for IICS at IXPs • Makes address block well known in region • Technically efficient for ISPs to implement appropriate filters
Detail Five • APNIC will publicise the IXP minimum assignment size (/24) on their webpages • IXP transit LAN assignments will not be globally visible (more likely regional or local visibility) • IICS address space will be globally visible
Detail Six • IXPs would be APNIC members • Have rights and benefits like other APNIC members • Have obligations like other APNIC members • Be categorised as other APNIC members
Detail Seven • Other IXP address space needs such as for local content services, management network • Address space should come from their membership • This is not Internet critical infrastructure • It does need global routability • Change of address block is minor inconvenience; renumbering an IXP transit LAN can be hugely disruptive
Advantages • IXPs can now become APNIC members • IXPs can now get address space from APNIC • Policy is very similar to ARIN’s No disadvantages!
Internet Infrastructure Critical Services • For this policy, these are defined as: • Root nameservers • gTLD nameservers • ccTLD nameservers • Regional Internet Registries
Implementation • APNIC should implement this policy three months after consensus has been reached • All supporting docs will be updated before this date • Community will be informed before this date