the correct ipv6 behavior for interfaces with gif tunnel on them

[JINMEI Tatuya /神明達哉]

>>>>> On Wed, 8 Dec 2004 13:22:10 +0100, 
>>>>> "Konstantin KABASSANOV" <Konstantin.Kabassanov at lip6.fr> said:

> I have a freebsd box with a gif tunnel configured. I observed that even if
> ifconfig displays MTU 1500 for both gif and physical interface, 1300 bytes
> ipv6 packets transiting on the gif interface are systematically fragmented
> while transiting on the lower physical interface to 1280 bytes. Is it the
> normal behavior?

Please provide more detailed network configuration.  Are you talking
about a router box forwarding packets onto gif and physical
interfaces?  Please also specify the OS name (which I guess is
FreeBSD) and its version.

					JINMEI, Tatuya
					Communication Platform Lab.
					Corporate R&D Center, Toshiba Corp.
					jinmei at isl.rdc.toshiba.co.jp