ZyXEL Communications ZyWALL 5 User Manual page 103

LABEL
RIP Direction RIP (Routing Information Protocol) allows a router to exchange routing information with
other routers. The RIP Direction field controls the sending and receiving of RIP packets.
Choose Both, None, In Only or Out Only.
When set to Both or Out Only, the ZyWALL will broadcast its routing table periodically.
When set to Both or In Only, the ZyWALL will incorporate RIP information that it
receives.
When set to None, the ZyWALL will not send any RIP packets and will ignore any RIP
packets received.
By default, RIP Direction is set to Both.
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).
Choose RIP-1, RIP-2B or RIP-2M.
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, the RIP Version field is
set to RIP-1.
Enable Multicast Select this check box to turn on IGMP (Internet Group Multicast Protocol). IGMP is a
network-layer protocol used to establish membership in a Multicast group - it is not used
to carry user data.
Multicast Version Choose None (default), IGMP-V1 or IGMP-V2. IGMP (Internet Group Multicast Protocol)
is a session-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.
Spoof WAN MAC You can use the factory assigned default MAC Address or cloning the MAC address from
Address a computer on your LAN.
Otherwise, select the check box next to Spoof WAN MAC Address and enter the IP
address of the computer on the LAN whose MAC you are cloning. Once it is successfully
configured, the address will be copied to the rom file (ZyNOS configuration file). It will not
change unless you change the setting or upload a different ROM file.
Clone the Enter the IP address of the computer on the LAN whose MAC you are cloning.
computer's MAC
It is recommended that you clone the MAC address prior to hooking up the WAN port.
address – IP
Address
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.
WAN Screens
Table 7-2 Ethernet Encapsulation
DESCRIPTION
ZyWALL 5 Internet Security Appliance
7-5