Chapter 4: Web Configuration
The information added will be shown
er
.
on the window right away, as the right
figure illustrates. That is, the specified
address will be reserved and not be
assigned by DHCP for oth
computer(s).
You may click Add button to add
another set or click Close to exit
Local Network – UPnP
only available for Windows XP. If you are not a Windows XP user, you
unction allows the users to
SL
tion
checking
The UPnP i s
may ignore this page.
Enabling the UPnP IGD and NAT
traversal f
perform more applications behind NAT
without additional configuration
settings or ALG sup port on your AD
Router.
You can enable the UPnP func
through this web page by
Enable UPnP and press Apply.
Local Network – IGMP Sn
Traditionally, IP packet
ooping
s are transmitted in one of either two ways - Unica st (1 se nder
nder to everyone on the network). Multicast delivers
e network.
ic is treated in the same manner a s bro adcast
. With IGMP snooping, multicast traffic of a
at have members of that group. IGMP snooping
, allowing you to significantly reduce multicast
e below shows a simple net work connected via the ADSL router. There are
four Ethernet clients and one USB client on the LAN interfa ce.
to 1 recipient) or Broadcast (1 se
IP packets to just a group of host s o n th
Without IGMP snooping, multicast traff
traffic, that is, it is forwarded to all ports
group is only forwarded to ports th
generates no additional network traffic
traffic passing through your switch.
The figur
Now suppose the video server is the multicast transmitter and host A and D are
multicast receivers. If we do not turn on the IGMP snooping function, the router will