April 2005 - address-policy-wg

Re: [address-policy-wg] HD ratio policy proposal
by Erics 06 Apr '05

06 Apr '05

Dear colleagues, we think the IPv4-HD-Ratio is a good instrument for LIRs to manage the demand of address space. Especially in view of their internal topologies. Even though it may have some limited impact to address space consumption we support this proposal. Kind regards Eric - for de.telekom

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RE: [address-policy-wg] Summary TLD Anycast Allocation Policy
by Wilfried Woeber, UniVie/ACOnet 05 Apr '05

05 Apr '05

>2. /32 vs. /48 V6 prefix - routability aspect > >From a routing table perspective there is no difference if the prefix is >longer or shorter. Well, for those so keen on preserving the last bit of memory, a _shorter_ prefix would actually be more efficient ;-) > When asking around which prefix length would have a good chance to >ensure the goal of not beeing filtered I have felt consensus that a /32 >has by far the best chances. However I'm considering if it wouldn't be >best to declare a /32 microallocation block from which RIPE will assign >/48 blocks. Other than the goal of conservation (which we have beaten to death already) what is the benefit of doing that? Administrative ease to collate them from the database? I would be be more worried abut the potential of taking the whole block down in one big sweep by misconfiguration and/or leaking announcements. But maybe this isn't an issue in the world of anycast for "critical" DNS services. Otoh, for those who don't like the concept, it would make it easier to cut off connectivty to those segments by entering just 1 filter... Wilfried.

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Summary TLD Anycast Allocation Policy
by Andreas Bäß/Denic 05 Apr '05

05 Apr '05

Dear WG! I have followed the discussion about the TLD Anycast Allocation Policy and decided not to quote from the previous posting but to pick up the arguments - as I have understood them - and pointing to the places where I have tried to address them in my policy draft. 1. Is there a need for anycasting at all ? I was surprised to see this question on the list. I think that anycasted nameservers are an accepted standard and there is no need to discuss pros and cons anymore. 2. /32 vs. /48 V6 prefix - routability aspect >From a routing table perspective there is no difference if the prefix is longer or shorter. When asking around which prefix length would have a good chance to ensure the goal of not beeing filtered I have felt consensus that a /32 has by far the best chances. However I'm considering if it wouldn't be best to declare a /32 microallocation block from which RIPE will assign /48 blocks. 3. /32 vs. /48 V6 prefix - address conservation aspect There is no question that a /32 is quite a big block and that this sacrifice to "ensure" reachability from most network places is worth it. This question should be raised at regular intervals which is covered by renewing/adjusting/withdrawing the policy if circumstances have changed. I felt that there has been consensus within the folks I have talked to that a /32 is currently a good thing to keep the komplexity of anycast deployment at a bearable level. However the last disccusion showed me that a lot of people would prefer to assign /48 from a /32 TLD Anycast Allocation Block. 4. Are the number of assignments under this policy limited? The policy in its current form implies a limit of one V4 and one V6 block assignment because as soon as one assigment is made there is no chance to pass the referenced IANA test to get another assignment. 5. Who gets the address assignment? The assignment is bound to a TLD nameservice. Therefore the applicant would be a TLD administrator. The TLD administrator can use this assignment either by himself or hand it to an anycast provider that will operate the anycast nameservers for him. I don't think that sharing an assignment between multiple TLDs if they outsource their operation to an anycasting DNS provider should be a must to separate TLD operations from each other and that the extra address space spent is a good thing keeping in mind the limited number of TLDs where talking about. Summary: I hope with my explanation it explains that most of the concerns have been addressed already. Allocating a /32 prefix to all RIPE TLD anycast assignments should help to address concerns about address space usage and make setting up routing filters easier. Any comments or suggestions? Andreas -- DENIC e.G. Phone :+49 69 27235 120 Wiesenhuettenplatz 26 Fax :+49 69 27235 235 D-60329 Frankfurt Mail : baess(a)denic.de -- DENIC e.G. Phone :+49 69 27235 120 Wiesenhuettenplatz 26 Fax :+49 69 27235 235 D-60329 Frankfurt Mail : baess(a)denic.de

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Re: [Ticket #1032183] Autoreply: viadomains <bleep>
by Randy Bush 05 Apr '05

05 Apr '05

i have plonked all mail from vianetworks.co.uk. if they ever get a clue and have something useful to say, someone please tell me. randy > From: via-domains <domains(a)vianetworks.co.uk> > RT-Ticket: Ticket #1032183 > Managed-by: RT 3.2.3 (http://www.bestpractical.com/rt/) > RT-Originator: randy(a)psg.com > To: randy(a)psg.com > > Thank you for your enquiry concerning "Re: [address-policy-wg] Policy proposal: #gamma IPv6 Initial Allocation Criteria", a summary > of which appears below. It has been logged with our automated ticketing > system and will be forwarded on to the appropriate department. > > You have been allocated a unique reference number - [Ticket > #1032183] - for this query that should be used in all further > correspondence relating to this matter. If replying by email, please > make sure that the ticket number is in the subject header. > > Thank you for your query, > > VIA Networks UK Support Administration > domains(a)vianetworks.co.uk > ------------------------------------------------------------------------- > Spam detection software, running on the system "he401war", has > identified this incoming email as possible spam. The original message > has been attached to this so you can view it (if it isn't spam) or block > similar future email. If you have any questions, see > sysadmin(a)vianetworks.co.uk for details. > > Content preview: >> and we once thought 32 bits of address should be > enough for ever > *I* wasn't part of that "we" - and the math is a > *little* bit different > here. > *I* wasn't part of that "we" one of > the few benefits of age is perspective [...] > > Content analysis details: (6.1 points, 5.0 required) > > pts rule name description > ---- ---------------------- -------------------------------------------------- > 1.0 RCVD_FROM_SECONDARY Went through secondary MX record > 0.1 TW_VT BODY: Odd Letter Triples with VT > 5.4 BAYES_99 BODY: Bayesian spam probability is 99 to 100% > [score: 1.0000] > -0.4 AWL AWL: Auto-whitelist adjustment > > >

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Draft Agenda for Address Policy WG @ RIPE 50 Thursday 5th May
by Hans Petter Holen 05 Apr '05

05 Apr '05

Dear all, Please find enclosed a first Draft Agenda for the upcoming Address Policy meeting. -hph A. Administrative Matters - Welcome - Select a scribe - Distribute participants list - Finalise agenda - Approve minutes from RIPE 49: http://www.ripe.net/ripe/wg/address-policy/r49-minutes.html B. Policy overview - Regional policy overview -- presentation of the status of the current regional proposals under the "beta test of the PDP" -- status of the PDP and transition to the PDP - Gloobal policy overview C. Policy proposal: #alpha: TLD Anycast Allocation Policy D. Policy proposal: #beta: IPv4-HD-Ratio E. Policy proposal: #gamma: IPv6 remove 200 customer requirement F. Other v6 issues ? G. Status of the IPv4 Global Policy H. Status of the IPv6 Global Policy I. Any other Business

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Re: [address-policy-wg] Policy proposal: #alpha: TLD Anycast Allocation Policy
by Wilfried Woeber, UniVie/ACOnet 04 Apr '05

04 Apr '05

>>> Well, this can be argued the otherway around as well. We know that >>> ISPs >>> filter out previously unused space, and that they are not very active >>> in updating those filters when IANA starts allocating out of new >>> blocks. Having all in well-known block would limit that. >> >> ...wouldn't we/you/they/all have to do some filtering the "other way >> 'round" if all of those prefixes are contained in _one_ superblock to >> guard against someone/something announcing (and potentially black- >> holeing(sp?)) a route for that /32? > >Eh, I would assume there is no /32 to announce and that more specifics >will always win. > >- - kurtis - In a perfect world - yes. But "per default" when you announce something in v6-world, you are "supposed" to announce a /32 (or maybe a /35) _and_ filter anything that is longer than that. I really don't see any benefit from adding complexity again, other than clinging to the well-worn conservatiopn goal from IPv4. Wilfried.

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HD ratio policy proposal
by Kelaidis Christine 04 Apr '05

04 Apr '05

My company believes that the proposal for the calculation of the HD ratio to measure IPv4 usage is a an improvement to the existing one and we would like to support this new policy proposal. Christine Kelaidis

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