ZyXEL P-870H-53A v2 User Guide - Page 67
NAT, IGMP Multicast and Firewall Activation
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Chapter 5 WAN Setup 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 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. Address Mapping Set 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. Enable Firewall Enable IGMP Multicast Proxy 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. P-870H/HW Series User's Guide 67