Figure 6-3 Physical Network; Figure 6-4 Partitioned Logical Networks - ZyXEL Communications 10 User Manual

ZyWALL 10~100 Series Internet Security Gateway
information about interoperability between IGMP version 2 and version 1, please see sections 4 and 5 of
RFC 2236. The class D IP address is used to identify host groups and can be in the range 224.0.0.0 to
239.255.255.255. The address 224.0.0.0 is not assigned to any group and is used by IP multicast computers.
The address 224.0.0.1 is used for query messages and is assigned to the permanent group of all IP hosts
(including gateways). All hosts must join the 224.0.0.1 group in order to participate in IGMP. The address
224.0.0.2 is assigned to the multicast routers group.
The ZyWALL supports both IGMP version 1 (IGMP-v1) and IGMP version 2 (IGMP-v2). At start up, the
ZyWALL queries all directly connected networks to gather group membership. After that, the ZyWALL
periodically updates this information. IP Multicasting can be enabled/disabled on the ZyWALL LAN and/or
WAN interfaces using menus 3.2 (LAN) and 11.3 (WAN). Select None to disable IP Multicasting on these
interfaces.
6.3.6 IP Alias
IP Alias allows you to partition a physical network into different logical networks over the same Ethernet
interface. The ZyWALL supports three logical LAN interfaces via its single physical Ethernet interface with
the ZyWALL itself as the gateway for each LAN network. Use menu 3.2.1 to configure IP Alias on your
ZyWALL.

Figure 6-3 Physical Network

Figure 6-4 Partitioned Logical Networks

6.4 TCP/IP and DHCP Ethernet Setup Menu
From the main menu, enter 3 to open Menu 3 - LAN Setup to configure TCP/IP (RFC 1155) and DHCP
Ethernet setup.
LAN Setup 6-5