ZyXEL Communications P-324 User Manual page 67

LABEL
RIP Direction
RIP Version
Multicast
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 and WAN
Apply
Reset
LAN Screens
RIP (Routing Information Protocol, RFC1058 and RFC 1389) allows a router to
exchange routing information with other routers. The RIP Direction field controls the
sending and receiving of RIP packets. Select the RIP direction from Both/In
Only/Out Only/None. When set to Both or Out Only, the Prestige will broadcast its
routing table periodically. When set to Both or In Only, it will incorporate the RIP
information that it receives; when set to None, it will not send any RIP packets and
will ignore any RIP packets received. Both is the default.
The RIP Version field controls the format and the broadcasting method of the RIP
packets that the Prestige sends (it recognizes both formats when receiving). RIP-1 is
universally supported but RIP-2 carries more information. RIP-1 is probably
adequate for most networks, unless you have an unusual network topology. Both
RIP-2B and RIP-2M sends the routing data in RIP-2 format; the difference being that
RIP-2B uses subnet broadcasting while RIP-2M uses multicasting. Multicasting can
reduce the load on non-router machines since they generally do not listen to the RIP
multicast address and so will not receive the RIP packets. However, if one router
uses multicasting, then all routers on your network must use multicasting, also. By
default, RIP direction is set to Both and the Version set to RIP-1.
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.
Select this check box to forward NetBIOS packets from the LAN to the 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.
Click Apply to save your changes back to the Prestige.
Click Reset to begin configuring this screen afresh.
Table 5-1 IP
DESCRIPTION
Prestige 324 User's Guide
5-5