ZyXEL Communications NVG2053, Руководство пользователя

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Chapter 9 LAN
NVG2053 User’s Guide
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9.3 What You Need To Know
The actual physical connection determines whether the NVG2053 ports are LAN or
WAN ports. There are two separate IP networks, one inside the LAN network and
the other outside the WAN network as shown next.
Figure 50 LAN and WAN IP Addresses
The LAN parameters of the NVG2053 are preset in the factory with the following
values:
• IP address of 192.168.1.1 with subnet mask of 255.255.255.0 (24 bits)
• DHCP server enabled with 100 client IP addresses starting from 192.168.1.100.
These parameters should work for the majority of installations.
9.3.1 Multicast
IP packets are transmitted in one of either two ways - Unicast (1 sender - 1
recipient) or Broadcast (1 sender - everybody on the network). Multicast delivers
IP packets to a group of hosts on the network - not everybody and not just 1.
Figure 51 Multicast Example
LAN
WAN
A
B
C
D
Server