ZyXEL Communications ZyXEL ZyWALL 2WG - Manual (Page 149)

Chapter 8 WAN Screens
ZyWALL 2WG User’s Guide
149
8.11.3 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. The screen shown next is for PPTP encapsulation.
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-V1 or 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
Address from
LAN
You can configure the WAN port's MAC address by either using the factory
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
computer’s MAC
address – IP
Address
Enter the IP address of the computer on the LAN whose MAC you are cloning.
If you clone the MAC address of a computer on your LAN, it is recommended that
you clone the MAC address prior to hooking up the WAN port.
Apply Click Apply to save your changes back to the ZyWALL.
Reset Click Reset to begin configuring this screen afresh.
Table 40 NETWORK > WAN > WAN 1 (PPPoE Encapsulation) (continued)
LABEL DESCRIPTION