ZyXEL Communications G.SHDSL.bis 4-port Security Gateway P-793H - Manual (Page 101)

P-793H User’s Guide
Chapter 6 LAN Setup 101
The following table describes the labels in this screen.
6.4 DHCP Setup
Use this screen to configure the DNS server information that the ZyXEL Device sends to the
DHCP client devices on the LAN.
Table 24 LAN > IP > Advanced Setup
LABEL DESCRIPTION
RIP & Multicast
Setup
RIP Direction RIP (Routing Information Protocol, RFC 1058 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 ZyXEL Device 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.
RIP Version This field is enabled if RIP Direction is not None. The RIP Version field controls
the format and the broadcasting method of the RIP packets that the ZyXEL Device
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.
Multicast IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to
establish membership in a multicast group. The ZyXEL Device supports both IGMP
version 1 (IGMP-v1) and IGMP-v2. Select None to disable it.
Windows
Networking
(NetBIOS over
TCP/IP)
NetBIOS (Network Basic Input/Output System) are TCP or UDP 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
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.
Back Click Back to return to the previous screen.
Apply Click Apply to save the changes.
Cancel Click Cancel to begin configuring this screen afresh.