Table 6-1 Dmz - ZyXEL Communications Prestige 652H series User Manual

LABEL
RIP Direction
RIP Version
Multicast
Windows Networking (NetBIOS over TCP/IP)
Allow between DMZ
and LAN
Allow between DMZ
and WAN
Apply
Cancel
DMZ Screens

Table 6-1 DMZ

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 DMZ and
from the DMZ to the LAN. If your firewall is enabled with the default policy set to
block DMZ to LAN traffic, you also need to enable the default DMZ to LAN firewall
rule that forwards NetBIOS traffic.
Clear this check box to block all NetBIOS packets going from the LAN to the DMZ
and from the DMZ to the LAN.
Select this check box to forward NetBIOS packets from the WAN to the DMZ and
from the DMZ to the WAN.
Clear this check box to block all NetBIOS packets going from the WAN to the DMZ
and from the DMZ to the WAN.
Click Apply to save your changes back to the Prestige.
Click Cancel to begin configuring this screen afresh.
Prestige 652H/HW Series User's Guide
DESCRIPTION
6-9