ZyXEL Communications ZyXEL ZyWALL P1, User Manual

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ZyWALL P1 User’s Guide
76 Chapter 4 LAN Screens
The following table describes the labels in this screen.
Table 18 LAN: LAN
LABEL DESCRIPTION
LAN TCP/IP
IP Address Type the IP address of your ZyWALL in dotted decimal notation. 192.168.167.1 is
the factory default. Alternatively, click the right mouse button to copy and/or paste
the IP address.
IP Subnet Mask The subnet mask specifies the network number portion of an IP address. Your
ZyWALL automatically calculate the subnet mask based on the IP address that you
assign. Unless you are implementing subnetting, use the subnet mask computed
by the ZyWALL.
RIP Direction RIP (Routing Information Protocol, RFC1058 and RFC 1389) allows a router to
exchange routing information with other routers. The RIP Direction field controls
the sending and receiving of RIP packets. Select the RIP direction from Both / In
Only / Out Only / None . When set to Both or Out Only , the ZyWALL will broadcast
its routing table periodically. When set to Both or In Only , it will incorporate the RIP
information that it receives; when set to None , it will not send any RIP packets and
will ignore any RIP packets received. Both is the default.
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 .
DHCP Setup
DHCP DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows
individual clients (workstations) to obtain TCP/IP configuration at startup from a
server.
Select
Server to set the ZyWALL to assign network information (IP address, DNS
information etc.) to an Ethernet device connected to the LAN port.
Select None to to stop the ZyWALL from acting as a DHCP server. you must have
another DHCP server on your LAN, or else the computer must be manually
configured.
Select
Relay to set the ZyWALL to forward network configuration requests to a
DHCP server on the LAN network
DHCP Client
Address
This field is applicable when you select Server in the DHCP field.
Specify the IP address for the DHCP client. Make sure the IP address is in the
same range as the ZyWALL’s LAN IP address.
DHCP Server
Address
This field is applicable when you select Relay in the DHCP field.
Enter the IP address (in dotted decimal notation) of a DHCP server on the LAN.