ZyXEL Communications ZyXEL ZyAIR 100 - Manual (Page 95)

ZyWALL 10~100 Series Internet Security Gateway
DMZ Screens 7-3
Table 7-1 DMZ
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)
Allow from DMZ to
LAN
Click this option to forward NetBIOS packets from the DMZ port to the LAN port.
Allow from DMZ to
WAN
Click this option to forward NetBIOS packets from the DMZ port to the WAN port.
Apply Click Apply to save your changes back to the ZyWALL.
Reset Click Reset to begin configuring this screen afresh.