ZyXEL Communications P-660RU-T1 v3, User Manual, Page: 63 / 230

Chapter 7 Internet Setup
P-660RU-Tx v3 User’s Guide
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The following table describes the labels in this screen.
Table 12 Interface Setup > Internet (Dynamic IP)
LABEL DESCRIPTION
Encapsulation Select the method of multiplexing used by your ISP from the drop-down list box.
Available options are: 1483 Bridged IP LLC , 1483 Bridged IP VC-Mux , 1483
Routed IP LLC(IPoA) and 1483 Routed IP VC-Mux .
Bridge Interface This field is only available when you select 1483 Bridged IP LLC or 1483
Bridged IP VC-Mux in the Encapsulation field.
Use this field to enable or disable the bridge mode. Activate the bridge mode
when your ISP provides you with more than one IP address and you want the
connected computers to get individual IP address from ISP’s DHCP server
directly.
NAT Use this field to enable or disable Network Address Translation (NAT).
Default Route Select Yes to direct traffic not listed in the routing table to the default gateway.
Select No to drop traffic not listed in the routing table.
TCP MTU Option The Maximum Transmission Unit (MTU) defines the size of the largest packet
allowed on an interface or connection. Enter the MTU in this field.
Dynamic Route RIP (Routing Information Protocol) allows a router to exchange routing
information with other routers.
Select the RIP version from
RIP1 , RIP2-B and RIP2-M .
Direction Use this field to control how much routing information the ZyXEL Device sends
and receives on the subnet.
Select the RIP direction from
None , Both , IN Only and OUT Only .
Multicast Multicast packets are sent to a group of computers on the LAN and are an
alternative to unicast packets (packets sent to one computer) and broadcast
packets (packets sent to every computer).
IGMP is a network-layer protocol used to establish membership in a multicast
group. The ZyXEL Device supports IGMP v1 , IGMP v2 and IGMP v3 . Select
Disabled to turn off the feature.
MAC Spoofing This field is only available when you select 1483 Bridged IP LLC or 1483
Bridged IP VC-Mux in the Encapsulation field.
Use this field to alter the MAC address so that the PVCs on the ZyXEL Device
can establish connections to the network.