<s>
The	O
Local	B-Protocol
Peer	I-Protocol
Discovery	I-Protocol
protocol	O
,	O
specified	O
as	O
BEP-14	O
,	O
is	O
an	O
extension	O
to	O
the	O
BitTorrent	B-Protocol
file-distribution	O
system	O
.	O
</s>
<s>
It	O
is	O
designed	O
to	O
support	O
the	O
discovery	O
of	O
local	O
BitTorrent	B-Protocol
peers	O
,	O
aiming	O
to	O
minimize	O
the	O
traffic	O
through	O
the	O
Internet	O
service	O
provider	O
's	O
(	O
ISP	O
)	O
channel	O
and	O
maximize	O
use	O
of	O
higher-bandwidth	O
local	B-General_Concept
area	I-General_Concept
network	I-General_Concept
(	O
LAN	B-General_Concept
)	O
.	O
</s>
<s>
Local	B-Protocol
Peer	I-Protocol
Discovery	I-Protocol
is	O
implemented	O
with	O
HTTP-like	O
messages	O
on	O
User	B-Protocol
Datagram	I-Protocol
Protocol	I-Protocol
(	O
UDP	O
)	O
multicast	B-Protocol
group	O
239.192.152.143:6771	O
(	O
IPv4	B-Protocol
)	O
or	O
ff15::efc0:988f	O
(	O
IPv6	B-Protocol
)	O
which	O
are	O
administratively	O
scoped	O
multicast	B-Protocol
addresses	O
.	O
</s>
<s>
Since	O
implementation	O
is	O
simple	O
,	O
Local	B-Protocol
Peer	I-Protocol
Discovery	I-Protocol
is	O
implemented	O
in	O
several	O
clients	O
( μTorrent	O
,	O
BitTorrent/Mainline	B-Protocol
,	O
MonoTorrent	B-Language
,	O
libtorrent	B-Language
and	O
its	O
derivatives	O
,	O
Transmission	B-Language
,	O
aria2	O
)	O
.	O
</s>
<s>
An	O
alternative	O
multicast	B-Protocol
peer	O
discovery	O
protocol	O
is	O
published	O
as	O
,	O
but	O
is	O
not	O
widely	O
adopted	O
since	O
it	O
is	O
considered	O
too	O
complex	O
in	O
comparison	O
.	O
</s>
