P-334U/P-335U User’s Guide

Figure 64 Advanced

The following table describes the labels in this screen.

Table 34

Advanced

 

 

 

LABEL

 

DESCRIPTION

 

 

Multicast Setup

 

 

 

Multicast

 

Select IGMP V-1or IGMP V-2or 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.

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

Select this check box to forward NetBIOS packets from the LAN to the WAN

and WAN

and from the WAN to the LAN. If your firewall is enabled with the default policy

 

set to block WAN to LAN traffic, you also need to enable the default WAN to

 

LAN firewall rule that forwards NetBIOS traffic.

 

Clear this check box to block all NetBIOS packets going from the LAN to the

 

WAN and from the WAN to the LAN.

Allow Trigger Dial

Select this option to allow NetBIOS packets to initiate calls.

 

 

Apply

Click Apply to save your changes back to the ZyXEL Device.

 

 

Reset

Click Reset to begin configuring this screen afresh.

 

 

104

Chapter 6 WAN