ZyXEL Communications P-870H-53A v2 User Manual page 67

5.5.1.4 NAT, IGMP Multicast and Firewall Activation
The screen is available only when you select IP over Ethernet in the WAN
Service Configuration screen.
Figure 35 WAN Configuration: NAT, IGMP Multicast and Firewall Activation: IPoE
The following table describes the labels in this screen.
Table 16 WAN Configuration: NAT, IGMP Multicast and Firewall Activation: IPoE
LABEL
Enable NAT
Enable Fullcone
NAT
Enable Address
Mapping
Address Mapping
Set
Enable Firewall
Enable IGMP
Multicast Proxy
P-870H/HW Series User's Guide
DESCRIPTION
Select this check box to activate NAT on this connection.
Select this check box to activate full cone NAT on this connection.
This field is available only when you select Enable NAT.
Select this check box to activate NAT address mapping on this
connection. There is no default address mapping rule. You need to
configure the address mapping rules manually in the NAT > Address
Mapping screen.
This field is available only when you configure a static IP address in
the previous screen and select Enable NAT.
Select the index number of the address mapping set that you want to
use on this connection.
This field is available only when you configure a static IP address in
the previous screen and select Enable NAT.
Select this check box to activate Firewall on this connection.
Select this check box to have the ZyXEL Device act as an IGMP proxy
on this connection. This allows the ZyXEL Device to get subscribing
information and maintain a joined member list for each multicast
group. It can reduce multicast traffic significantly.
Chapter 5 WAN Setup
67