15
4.2.1
PPP over ATM (PPPoA) and PPP over Ethernet (PPPoE)
STEP 4:
Enter the PPP settings as provided by your ISP.
PPP Settings
The PPP Username, PPP password and the PPPoE Service Name entries are
dependent on the particular requirements of the ISP. The user name can be a
maximum of 256 characters and the password a maximum of 32 characters in
length. For Authentication Method, choose from AUTO, PAP, CHAP, and MSCHAP.
Dial on Demand
The CT-5072S can be configured to disconnect if there is no activity for a period of
time by selecting the
Dial on demand
check box. When the checkbox
;
is ticked,
you must enter an inactivity timeout period of 1 to 4320 minutes.
PPP IP Extension
The PPP IP Extension is a special feature deployed by some service providers.
Unless your service provider specifically requires this setup, do not select it.
PPP IP Extension does the following:
•
Allows only one PC on the LAN
•
The public IP address assigned by the remote side using the PPP/IPCP
protocol is actually not used on the WAN PPP interface. Instead, it is
forwarded to the PC LAN interface through DHCP. Only one PC on the
LAN can be connected to the remote, since the DHCP server within the
device has only a single IP address to assign to a LAN device.
•
NAT and firewall are disabled when this option is selected.
•
The device becomes the default gateway and DNS server to the PC
through DHCP using the LAN interface IP address.
