Chapter 8 WAN Screens

 

Table 40 NETWORK > WAN > WAN 1 (PPTP Encapsulation) (continued)

 

LABEL

DESCRIPTION

 

RIP Version

The RIP Version field controls the format and the broadcasting method of the RIP

 

 

packets that the ZyWALL sends (it recognizes both formats when receiving).

 

 

Choose RIP-1,RIP-2B or RIP-2M.

 

 

RIP-1is universally supported; but RIP-2carries more information. RIP-1 is

 

 

probably adequate for most networks, unless you have an unusual network

 

 

topology. Both RIP-2Band RIP-2Msends 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.

 

Enable Multicast

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.

 

 

 

 

Multicast Version

Choose None (default), IGMP-V1or IGMP-V2. IGMP (Internet Group Multicast

 

 

Protocol) is a session-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.

 

 

 

 

Spoof WAN MAC

You can configure the WAN port's MAC address by either using the factory

 

Address from LAN

assigned default MAC Address or cloning the MAC address of a computer on

 

 

your LAN. By default, the ZyWALL uses the factory assigned MAC Address to

 

 

identify itself on the WAN.

 

 

Otherwise, select the check box next to Spoof WAN MAC Address from LAN

 

 

and enter the IP address of the computer on the LAN whose MAC you are

 

 

cloning. Once it is successfully configured, the address will be copied to the rom

 

 

file (ZyNOS configuration file). It will not change unless you change the setting or

 

 

upload a different ROM file.

 

 

 

 

Clone the

Enter the IP address of the computer on the LAN whose MAC you are cloning.

 

computer’s MAC

If you clone the MAC address of a computer on your LAN, it is recommended that

 

address – IP

you clone the MAC address prior to hooking up the WAN port.

 

Address

 

 

Apply

Click Apply to save your changes back to the ZyWALL.

 

 

 

 

Reset

Click Reset to begin configuring this screen afresh.

 

 

 

8.13 WAN 2 (3G WAN)

3G (Third Generation) is a digital, packet-switched wireless technology. Bandwidth usage is optimized as multiple users share the same channel and bandwidth is only allocated to users when they send data. It allows fast transfer of voice and non-voice data and provides broadband Internet access to mobile devices.

 

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ZyWALL 2WG User’s Guide