<s>
In	O
the	O
Internet	O
addressing	O
architecture	O
,	O
the	O
Internet	O
Engineering	O
Task	O
Force	O
(	O
IETF	O
)	O
and	O
the	O
Internet	O
Assigned	O
Numbers	O
Authority	O
(	O
IANA	O
)	O
have	O
reserved	O
various	O
Internet	B-Protocol
Protocol	I-Protocol
(	O
IP	O
)	O
addresses	O
for	O
special	O
purposes	O
.	O
</s>
