ZyXEL Communications VANTAGE CNM - V3.1 User Manual page 78

Chapter 5 Device Network Settings
Table 19 Device Operation > Device Configuration > Network > WAN > ISP (PPPoE) –
ZyNOS ZyWALL (one WAN port) (continued)
LABEL
RIP Direction
RIP Version
Multicast
Apply
Reset
5.3.1.3 PPTP Encapsulation
Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables secure transfer of
data from a remote client to a private server, creating a Virtual Private Network (VPN) using
TCP/IP-based networks.
PPTP supports on-demand, multi-protocol and virtual private networking over public
networks, such as the Internet.
Select PPP Over Ethernet from the Encapsulation field. A warning message appears. Click
OK.
Figure 35 Warning Message When Select PPTP
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DESCRIPTION
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 inter operability 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 device.
Click this to begin configuring this screen afresh.
Vantage CNM User's Guide