<s>
The	O
Internet	B-Protocol
Group	I-Protocol
Management	I-Protocol
Protocol	I-Protocol
with	I-Protocol
Access	I-Protocol
Control	I-Protocol
(	O
IGMP-AC	O
)	O
has	O
been	O
designed	O
for	O
incorporating	O
AAA	O
protocol	O
functionality	O
in	O
the	O
existing	O
IP	B-Protocol
multicast	I-Protocol
model	O
.	O
</s>
<s>
IGMP-AC	O
is	O
an	O
extended	O
version	O
of	O
Internet	B-Protocol
Group	I-Protocol
Management	I-Protocol
Protocol	I-Protocol
.	O
</s>
<s>
Thus	O
,	O
any	O
suitable	O
authentication	O
protocol	O
(	O
e.g.	O
,	O
Extensible	B-Protocol
Authentication	I-Protocol
Protocol	I-Protocol
(	O
EAP	O
)	O
)	O
having	O
client-server	O
entities	O
can	O
be	O
encapsulated	O
over	O
the	O
IGMP-AC	O
architecture	O
.	O
</s>
<s>
The	O
IGMP-AC	O
will	O
not	O
disrupt	O
the	O
usual	O
function	O
of	O
the	O
IGMPv3	B-Protocol
(	O
to	O
be	O
used	O
for	O
classical	O
multicast	O
group	O
)	O
,	O
and	O
the	O
access	O
control	O
mechanism	O
of	O
IGMP-AC	O
will	O
take	O
place	O
to	O
join/leave	O
a	O
secured	O
or	O
restricted	O
multicast	O
group	O
only	O
.	O
</s>
