ZyXEL Communications ZyXEL ZyAIR 100 - Manual (Page 73)

ZyWALL 10~100 Series Internet Security Gateway
LAN 5-5
Table 5-1 IP
LABEL DESCRIPTION
RIP Version The RIP Version field controls the format and the broadcasting method of the RIP
packets that the ZyWALL sends (it recognizes both formats when receiving). RIP-1
is universally supported but RIP-2 carries more information. RIP-1 is probably
adequate for most networks, unless you have an unusual network topology. Both
RIP-2B and RIP-2M sends the routing data in RIP-2 format; the difference being that
RIP-2B uses subnet broadcasting while RIP-2M uses multicasting. Multicasting can
reduce the load on non-router machines since they generally do not listen to the RIP
multicast address and so will not receive the RIP packets. However, if one router
uses multicasting, then all routers on your network must use multicasting, also. By
default, RIP direction is set to Both and the Version set to RIP-1.
Multicast Select IGMP V-1 or IGMP V-2 or None. IGMP (Internet Group Multicast Protocol) is
a network-layer protocol used to establish membership in a Multicast group - it is not
used to carry user data. IGMP version 2 (RFC 2236) is an improvement over version
1 (RFC 1112) but IGMP version 1 is still in wide use. If you would like to read more
detailed information about interoperability between IGMP version 2 and version 1,
please see sections 4 and 5 of RFC 2236.
Windows Networking (NetBIOS over TCP/IP): NetBIOS (Network Basic Input/Output System) are TCP or
UDP broadcast packets that enable a computer to connect to and communicate with a LAN. For some dial-
up services such as PPPoE or PPTP, NetBIOS packets cause unwanted calls. However it may sometimes
be necessary to allow NetBIOS packets to pass through to the WAN in order to find a computer on the
WAN.
Allow From LAN to
WAN
Select this option to forward NetBIOS packets from the LAN port to the WAN port.
Allow From LAN to
DMZ
Select this option to forward NetBIOS packets from the LAN port to the DMZ port.
(Not all ZyWALL models have a DMZ port.)
Apply Click Apply to save your changes back to the ZyWALL.
Reset Click Reset to begin configuring this screen afresh.
5.5 Configuring Static DHCP
This table allows you to assign IP addresses on the LAN to specific individual computers based on their
MAC Addresses.
Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address is assigned at
the factory and consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02.
To change your ZyWALL’s Static DHCP settings, click LAN, then the Static DHCP tab. The screen appears
as shown.