ZyXEL Communications Vantage CNM 2.3 User Manual page 86

Chapter 5 Device Network Settings
Table 23 Device Operation > Device Configuration > Network > WAN > WAN1/2 -
PPTP (ZyNOS ZyWALL with two WAN ports) (continued)
LABEL
Private
Advanced Setup
RIP Direction
RIP Version
Multicast
Apply
Reset
86
DESCRIPTION
This parameter determines if the device will include this route to a
remote node in its RIP broadcasts.
Select this check box to keep this route private and not included in RIP
broadcasts. Clear this check box to propagate this route to other hosts
through RIP broadcasts.
RIP (Routing Information Protocol) allows a router to exchange routing
information with other routers. The RIP Direction field controls the
sending and receiving of RIP packets.
Choose Both, None, In Only or Out Only.
When set to Both or Out Only, the device will broadcast its routing
table periodically.
When set to Both or In Only, the device will incorporate RIP
information that it receives.
When set to None, the device will not send any RIP packets and will
ignore any RIP packets received.
By default, RIP Direction is set to Both.
The RIP Version field controls the format and the broadcasting
method of the RIP packets that the device sends (it recognizes both
formats when receiving).
Choose RIP-1, RIP-2B or RIP-2M.
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, the RIP Version
field is set to RIP-1.
Choose None (default), IGMP-V1 or IGMP-V2. 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.
Click this to save your changes back to the Vantage CNM.
Click this to begin configuring this screen afresh.
Vantage CNM User's Guide