Make the IPv4 "do not fragment" bit a configurable variable for the 6rd
tunnel interface as the bit should not be set in the encapsulating IPv4
header according to RFC3056.
On top the config variable allows to enable/disable path mtu discovery
for tunnel interfaces.
Config variable can be passed to netifd as tunnel config support is
already present for the "do not fragment" bit.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
SVN-Revision: 39370
The correct bits are now cleared in the IPv6 address as the shift
value to the correct byte in the IPv6 address was wrong. Depending
on the stack values this could result in a hanging 6rdcalc program
due to an endless loop.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
SVN-Revision: 38818
Steven Barth