<s>
IP	O
over	O
HTTPS	O
(	O
"	O
IP-HTTPS	B-Protocol
"	O
,	O
"	O
MS-IPHTTPS	O
"	O
)	O
is	O
a	O
Microsoft	O
network	B-Protocol
tunneling	I-Protocol
protocol	I-Protocol
.	O
</s>
<s>
The	O
IP-HTTPS	B-Protocol
protocol	O
transports	O
IPv6	B-Protocol
packets	O
across	O
non-IPv6	O
networks	O
.	O
</s>
<s>
It	O
does	O
a	O
similar	O
job	O
as	O
the	O
earlier	O
6to4	B-Protocol
or	O
Teredo	B-Protocol
tunneling	I-Protocol
mechanisms	O
.	O
</s>
<s>
Microsoft	O
used	O
to	O
discourage	O
IP-HTTPS	B-Protocol
use	O
because	O
it	O
was	O
slow	O
.	O
</s>
<s>
For	O
Windows	B-Device
Server	I-Device
2012	I-Device
,	O
Microsoft	O
changed	O
the	O
internal	O
workings	O
of	O
the	O
protocol	O
,	O
and	O
IP-HTTPS	B-Protocol
is	O
now	O
the	O
"	O
preferred	O
IPv6	B-Protocol
transition	O
technology	O
"	O
for	O
their	O
"	B-Application
DirectAccess	I-Application
"	I-Application
VPN	I-Application
technology	I-Application
.	O
</s>
