RE: [dhcwg] Clarification necessary
"Bernie Volz (EUD)" <Bernie.Volz@am1.ericsson.se> Fri, 14 September 2001 20:59 UTC
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From: "Bernie Volz (EUD)" <Bernie.Volz@am1.ericsson.se>
To: 'Artur Guja' <skybird@3miasto.net>, dhcwg@ietf.org
Subject: RE: [dhcwg] Clarification necessary
Date: Fri, 14 Sep 2001 15:56:20 -0500
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Some of these points were ones I was going to raise. We do need to work out some of the message contents (options) a bit more completely. Let me try to answer what I think we should do in these situations (prefixed by BV>). See below. - Bernie Volz -----Original Message----- From: Artur Guja [mailto:skybird@3miasto.net] Sent: Friday, September 14, 2001 3:05 PM To: dhcwg@ietf.org Subject: [dhcwg] Clarification necessary Hello listees, There are several points in the DHCPv6 draft than I feel need clarification in further drafts. I understand that some of it may seem clear to you, some of it may have already been discussed. Nevertheless I would appreciate maybe just a little note on EACH of htese points. 1) Does the server include DUID option in ADVERTISE or REPLY? BV> Yes, I think it should include the DUID. Basically, just as the BV> client MUST send the DUID in all messages, so must the server in BV> all "replies". 2) Should the client save its leases to a file or do they just go to the memory? IOW, are they lost upon reboot? BV> A client SHOULD save them such that they survive reboots. This BV> is what many DHCPv4 clients already do so it really shouldn't be BV> such a big deal. Some of the revised text we're working on will BV> provide more clarification around this in cases where a client BV> has no permanent storage capabilities. Basically, an ADVERTISE BV> will be able to include other IAs for the client that the server BV> knows about and it is recommended that these types of clients BV> always use the same IA ID (such as 0). 3) What is the server's reply to a DECLINE? Is there none, or is it a REPLY message? What is in such a REPLY? (New leases or empty IAs???) BV> This is one of the areas that I think needs further clarification. BV> This is also more complicated because there could be some kinds of BV> errors that need to be reported (either for a specific address or BV> for an IAID - and there could be multiple of both in a Decline). BV> I would suggest the server send back an IA ID with no addresses BV> if the request is accepted. If errors occur, the addresses that BV> failed would need to be included. BV> BV> There are more interesting issues as well, such as what about the BV> T1/T2 times - I would suggest that those are ignored by the client BV> for a reply to a Decline (or Release). BV> BV> One other thought ... we could have the server return IAIDs and BV> the addresses that were released with 0 lifetimes! 4) Why should there be more than one address assigned to an IA? If so, how can a client indicate it wants more than one address? (The IAs have to be empty in SOLICIT). BV> I'm not going to get into the more than one address per IA issue BV> for now (that's been discussed and rehashed enough times). I believe BV> the text for Solicit is wrong and will be correct - the information BV> received in the Advertise for the IA should be included (that helps BV> the server to remember what it Advertised to the client). The client BV> can NOT ask for a particular number of addresses. It can ask for BV> addresses. It gets what it gets. If it wants more, it must ask for BV> "more" by using a new IAID. If it gets more than it wants, it can BV> keep them or Release those addresses. I'm currently working on an actual implemtation of DHCPv6 for my diploma at the TUG (Technical Univ of Gdansk). I'd appreciate any help. Thanks in advance, Artur G. PS: The best help would be to get DHCPv6 to a FINAL standard ASAP, so that I could be sure what to write :)))) BV> We're working on it! _______________________________________________ dhcwg mailing list dhcwg@ietf.org http://www1.ietf.org/mailman/listinfo/dhcwg
- [dhcwg] Clarification necessary Artur Guja
- RE: [dhcwg] Clarification necessary Bernie Volz (EUD)
- RE: [dhcwg] Clarification necessary Erik Nordmark
- Re[2]: [dhcwg] Clarification necessary Artur Guja
- RE: [dhcwg] Clarification necessary Bernie Volz (EUD)