<s>
The	O
Multicast	B-Protocol
Address	I-Protocol
Dynamic	I-Protocol
Client	I-Protocol
Allocation	I-Protocol
Protocol	I-Protocol
(	O
MADCAP	O
)	O
is	O
a	O
communication	O
protocol	O
that	O
allows	O
hosts	O
to	O
request	O
multicast	O
addresses	O
from	O
a	O
server	O
.	O
</s>
<s>
The	O
Multicast	B-Protocol
Address	I-Protocol
Dynamic	I-Protocol
Client	I-Protocol
Allocation	I-Protocol
Protocol	I-Protocol
(	O
MADCAP	O
)	O
is	O
designed	O
to	O
allow	O
for	O
automatic	O
dynamic	O
assignment	O
of	O
multicast	O
addresses	O
.	O
</s>
<s>
Whereas	O
IPv6	O
allows	O
for	O
2112	O
possible	O
multicast	O
addresses	O
,	O
IPv4	O
multicast	O
addresses	O
are	O
restricted	O
to	O
only	O
class	B-Protocol
D	I-Protocol
Internet	O
addresses	O
(	O
224.0.0.0/4	O
)	O
.	O
</s>
<s>
Port	B-Protocol
number	I-Protocol
2535	O
is	O
assigned	O
by	O
IANA	O
for	O
use	O
with	O
this	O
protocol	O
.	O
</s>
<s>
All	O
protocol	O
messages	O
are	O
encapsulated	O
in	O
UDP	B-Protocol
datagrams	O
.	O
</s>
<s>
The	O
MADCAP	O
protocol	O
has	O
much	O
in	O
common	O
with	O
DHCP	B-Protocol
,	O
but	O
they	O
are	O
separate	O
protocols	O
with	O
no	O
common	O
dependencies	O
.	O
</s>
<s>
MADCAP	O
was	O
originally	O
based	O
on	O
DHCP	B-Protocol
.	O
</s>
<s>
Microsoft	O
included	O
MADCAP	O
as	O
part	O
of	O
the	O
DHCP	B-Protocol
service	O
in	O
Windows	B-Application
2000	I-Application
.	O
</s>
