ZyXEL Communications NBG410W3G User Manual page 137

Table 24 NETWORK > DMZ (continued)
LABEL
Multicast
DHCP Setup
DHCP
IP Pool Starting
Address
Pool Size
DHCP Server
Address
DHCP WINS
Server 1, 2
Windows
Networking
(NetBIOS over
TCP/IP)
Allow between
DMZ and LAN
Allow between
DMZ and WAN 1
Allow between
DMZ and WAN 2
Apply
Reset
NBG410W3G Series User's Guide
DESCRIPTION
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 (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows
individual clients (workstations) to obtain TCP/IP configuration at startup from a
server. Unless you are instructed by your ISP, leave this field set to Server. When
configured as a server, the ZyXEL Device provides TCP/IP configuration for the
clients. When set as a server, fill in the IP Pool Starting Address and Pool Size
fields.
Select Relay to have the ZyXEL Device forward DHCP requests to another
DHCP server. When set to Relay, fill in the DHCP Server Address field.
Select None to stop the ZyXEL Device from acting as a DHCP server. When you
select None, you must have another DHCP server on your LAN, or else the
computers must be manually configured.
This field specifies the first of the contiguous addresses in the IP address pool.
This field specifies the size, or count of the IP address pool.
Type the IP address of the DHCP server to which you want the ZyXEL Device to
relay DHCP requests. Use dotted decimal notation. Alternatively, click the right
mouse button to copy and/or paste the IP address.
Type the IP address of the WINS (Windows Internet Naming Service) server that
you want to send to the DHCP clients. The WINS server keeps a mapping table
of the computer names on your network and the IP addresses that they are
currently using.
Select this check box to forward NetBIOS packets from the LAN to the DMZ and
from the DMZ to the LAN. If your firewall is enabled with the default policy set to
block DMZ to LAN traffic, you also need to configure a DMZ to LAN firewall rule
that forwards NetBIOS traffic.
Clear this check box to block all NetBIOS packets going from the LAN to the DMZ
and from the DMZ to the LAN.
Select this check box to forward NetBIOS packets from the DMZ to WAN 1 and
from WAN 1 to the DMZ.
Clear this check box to block all NetBIOS packets going from the DMZ to WAN 1
and from WAN 1 to the DMZ.
Select this check box to forward NetBIOS packets from the DMZ to WAN 2 and
from WAN 2 to the DMZ.
Clear this check box to block all NetBIOS packets going from the DMZ to WAN 2
and from WAN 2 to the DMZ.
Click Apply to save your changes.
Click Reset to begin configuring this screen afresh.
Chapter 7 DMZ Screens
137