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Vantage CNM 2.0
Table 8-8 Configuration > WAN > Dial Backup > Edit – ZyWALL
LABEL
Enable SUA
Broadcast Dial Backup
Route
Enable Multicast
Multicast Version
Enable RIP
RIP Direction
RIP Version
Apply
Reset
8.2
General WAN – Prestige
Traffic Shaping
Traffic Shaping is an agreement between the carrier and the subscriber to regulate the average rate and
fluctuations of data transmission over an ATM network. This agreement helps eliminate congestion, which is
important for transmission of real time data such as audio and video connections.
8-16
Network Address Translation (NAT) allows the translation of an Internet protocol
address used within one network to a different IP address known within another
network.
SUA (Single User Account) is a subset of NAT that supports two types of mapping:
Many-to-One and Server. When you select this option the ZyXEL device will use
Address Mapping Set 255 in the SMT (see the section on menu 15.1 for more
information).
Select the check box to enable SUA. Clear the check box to disable SUA so the
ZyXEL device does not perform any NAT mapping for the dial backup connection.
Select this check box to forward the backup route broadcasts to the WAN.
Select this check box to turn on IGMP (Internet Group Multicast Protocol). IGMP is a
network-layer protocol used to establish membership in a Multicast group - it is not
used to carry user data.
Select IGMP-v1 or IGMP-v2. 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 turn on RIP (Routing Information Protocol), which allows a
router to exchange routing information with other routers.
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 ZyXEL device broadcasts its routing
table periodically. When set to Both or In Only, it incorporates the RIP information that
it receives; when set to None, it does not send any RIP packets and ignores 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 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. By default,
RIP direction is set to Both and the Version set to RIP-1.
Click Apply to save your changes back to the ZyXEL device.
Click Reset to begin configuring this screen afresh.
DESCRIPTION
Configuration > WAN
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