Link Authentication; Configuring The Dial-Up Modem - ZyXEL Communications p-334whd User Manual

Table 40 PPTP Encapsulation
LABEL
First DNS Server
Second DNS Server
Third DNS Server
WAN MAC Address
Factory default
Clone the computer's
MAC address
Set WAN MAC
Address
Apply
Reset

6.3 Link Authentication

After a link is established, it is necessary to authenticate the peer for security reasons. There
are two popular authentication methods. One is Password Authentication Protocol (PAP) and
the other is Challenge Handshake Authentication Protocol (CHAP). PAP is less secure
because it transmits the username/password in plain text form. Unlike PAP, CHAP transmits
the username/password in encrypted form. Some ISPs may support CHAP as the only method
for authentication.

6.4 Configuring the Dial-up Modem

Click Network > WAN > Modem Dialup to display the Modem Dialup screen. Use this
screen to configure the WAN dial-up connection.
Chapter 6 WAN
DESCRIPTION
Select From ISP if your ISP dynamically assigns DNS server information (and
the ZyXEL Device's WAN IP address). The field to the right displays the (read-
only) DNS server IP address that the ISP assigns.
Select User-Defined if you have the IP address of a DNS server. Enter the
DNS server's IP address in the field to the right. If you chose User-Defined,
but leave the IP address set to 0.0.0.0, User-Defined changes to None after
you click Apply. If you set a second choice to User-Defined, and enter the
same IP address, the second User-Defined changes to None after you click
Apply.
Select None if you do not want to configure DNS servers. If you do not
configure a DNS server, you must know the IP address of a computer in order
to access it.
The MAC address section allows users to configure the WAN port's MAC
address by either using the ZyXEL Device's MAC address, copying the MAC
address from a computer on your LAN or manually entering a MAC address.
Select Factory default to use the factory assigned default MAC Address.
Select Clone the computer's MAC address - IP Address 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.
Select this option and enter the MAC address you want to use.
Click Apply to save your changes back to the ZyXEL Device.
Click Reset to begin configuring this screen afresh.
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