ZyXEL Communications P-334WHD - Manual (Page 108)

P-334WHD User’s Guide
108 Chapter 6 WAN
6.5 Advanced WAN Screen
To change your ZyXEL Device’s advanced WAN settings, click Network > WAN >
Advanced. The screen appears as shown.
Figure 61 WAN > Advanced
The following table describes the labels in this screen.
Table 42 WAN > Advanced
LABEL DESCRIPTION
Multicast Setup
Multicast 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
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.