ZyXEL Communications VANTAGE CNM - V3.1 User Manual page 66

Chapter 5 Device Network Settings
Table 13 Device Operation > Device Configuration > LAN > LAN (ZyNOS ZyWALL)
LABEL
RIP Version
Multicast
Filter (IP/MAC Binding)
Drop packets that
do not match static
IP or Dynamic IP/
MAC binding
Exempt packets in
this IP address
range.
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 between LAN
and WAN1
Allow between LAN
and WAN2
Allow between LAN
and DMZ
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DESCRIPTION
The RIP Version field controls the format and the broadcasting method of the
RIP packets that the device 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.
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 inter operability between IGMP
version 2 and version 1, please see sections 4 and 5 of RFC 2236.
Select this to allow traffic only from devices on the LAN which have received an
IP address from the selected device. This is done by allowing traffic only from
devices on the LAN with specific combinations of IP and MAC addresses. These
IP addresses are dynamically assigned by the the selected device or manually
set using static DHCP.
Click static IP to go to the Device Configuration > Network > LAN > Static
DHCP screen for a list of static IP/MAC address combinations.
Set the selected device to allow packets from the LAN with source IP addresses
within a specified range. This allows packets even when their IP and MAC
addresses do not match those specified in the Device Configuration > Network
> LAN > Static DHCP screen.
Type this range of IP addresses in the From and To fields.
Select this check box to forward NetBIOS packets from the LAN to WAN port
1and from WAN port 1 to the LAN. If your firewall is enabled with the default
policy set to block WAN port 1 to LAN traffic, you also need to enable the default
WAN port 1 to LAN firewall rule that forwards NetBIOS traffic.
Clear this check box to block all NetBIOS packets going from the LAN to WAN
port 1 and from WAN port 1 to the LAN.
Select this check box to forward NetBIOS packets from the LAN to WAN port 2
and from WAN port 2 to the LAN. If your firewall is enabled with the default policy
set to block WAN port 2 to LAN traffic, you also need to enable the default WAN
port 2 to LAN firewall rule that forwards NetBIOS traffic.
Clear this check box to block all NetBIOS packets going from the LAN to WAN
port 2 and from WAN port 2 to the LAN.
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 enable the default 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.
Vantage CNM User's Guide