In article <20040728110359.A08B71AE98@berkshire.research.att.com>,
	"Steven M. Bellovin" <smb@research.att.com> writes:
>>> i can't expect whole IPv6 network will have MTU=1280.
>>My outer IPv6 interface uses a MTU of 1280, too, and I can download files
>>via FTP without problems.
> In fact, the designers of IPv6 assert that you can make that 
> assumption.  It's a requirement for IPv6 links.

I think Wojciech Puchar's concern is that other IPv6 systems may use bigger
MTUs which breaks his tunnel.

	Kind regards

-- 
Matthias Scheler                                  http://scheler.de/~matthias/