On Jun 15, 2012, at 11:50 PM, Masataka Ohta wrote:
Joe Touch wrote:
Again, this document doesn't change the current situation. Operators who
clear the DF bit are not innocent - they need to override a default
setting. They are active participants. They ARE guilty of violating
While IETF is not a protocol police and clearing DF is not
considered guilty by operators community, the following
to fragment IPv6 packets by intermediate routers should be
very interesting to you.
It is aware of our IPv4-ID doc, and consistent with it.
When the DF is "ignored", the ID field is rewritten - i.e., turning the packet
from atomic to compliant non-atomic within the tunnel. This is consistent with
the notion that the ID field must be unique, and that atomic packets need not
have unique IDs. The rewriting is hidden - happens only inside the tunnel, is
controlled uniquely by the source, and does not need coordination by other