RE: [dhcwg] Message fragmentation in DHCPv6
"Bernie Volz (EUD)" <Bernie.Volz@am1.ericsson.se> Sat, 15 June 2002 17:47 UTC
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From: "Bernie Volz (EUD)" <Bernie.Volz@am1.ericsson.se>
To: "'vijayak@india.hp.com'" <vijayak@india.hp.com>, dhcwg@ietf.org
Subject: RE: [dhcwg] Message fragmentation in DHCPv6
Date: Sat, 15 Jun 2002 12:45:54 -0500
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Vijay: Fragmentation is always possible - it just should be avoided. In most cases this really only applies to boot proms that may have a limited IP implementation and therefore not have sufficient resources for handling reassembly? The MTU size is really dependent on the link and therefore isn't required to be specified (recall that Path MTU Discovery is required in IPv6). But, the general IPv6 MTU (of if I recall 1280 octets) is probably a reasonable default and gives us much more space than is in general available in DHCPv4. Anyway, the point is that if a large message must be sent, send it. However, if that large message results because unrequested options might be added, don't bother adding those options. - Bernie -----Original Message----- From: Vijayabhaskar A K [mailto:vijayak@india.hp.com] Sent: Saturday, June 15, 2002 9:46 AM To: dhcwg@ietf.org Subject: [dhcwg] Message fragmentation in DHCPv6 "The server SHOULD limit the options returned to the client so that the DHCP message header and options do not cause fragmentation." Do we need to define some maximum DHCP message size here? "The client has to include ALL the IAs in the reply to Reconfigure message." Then, for this case, what should the client do, in the case if it finds that there will be fragmentation. The situation is worse, in the case, client is able to send all the IAs, but the server is not able to reply with ALL IAs. How will the server send the remaining options/IAs to the client? ~Vijay _______________________________________________ dhcwg mailing list dhcwg@ietf.org https://www1.ietf.org/mailman/listinfo/dhcwg
- [dhcwg] Message fragmentation in DHCPv6 Vijayabhaskar A K
- RE: [dhcwg] Message fragmentation in DHCPv6 Bernie Volz (EUD)