> -----Original Message----- > From: Bernard Aboba [mailto:[EMAIL PROTECTED] > Sent: Thursday, November 01, 2007 7:56 AM > To: [email protected] > Subject: RE: [Int-area] DCHP-based authentication for DSL? > > >For the above reasons, DHCP message should not be IP-fragmented. > >However, DHCP message MTU being not more than link-layer MTU can be a > >non-workable requirement when carrying EAP, considering the fact that > >EAP can consume up to 1020 octets and additionally other options need > >to be carried in a DHCP message.
I don't see a problem here when DHCP fragmentation is used; the linkMTU has no bearing on how big of a fragmented DHCP message can be sent. How big do you want to go, i.e., is a 16bit fragment offset field enough or do you also want to support jumbos? I guess we need to say something about the minimum DHCP EMTU_R when DHCP fragmentation is implemented, but again I don't see a problem. > Also, not all EAP methods support fragmentation, and among those that do, > not all implementations support an MTU that varies on a per-packet basis. Not sure what you mean about EAP methods supporting fragmentation; DHCP does the fragmentation, and EAP only ever sees the whole message. Do you see a problem? Fred [EMAIL PROTECTED] _______________________________________________ Int-area mailing list [email protected] https://www1.ietf.org/mailman/listinfo/int-area
