User's Manual

66xx/67xx Router Users Guide 67
5. Specify the address type, IPv4 only or dual stack (IPv4 and IPv6).
6. Click Next.
7. On the PPP Username and Password page you will need to enter information provided by
your ISP. When you are done, click Next.
 PPP Username: Your account from ISP to access Internet.
 PPP Password: The password assigned by your ISP.
 Authentication Method: Authentication mode of network ISP. Default is AUTO.
 MTU: the Maximum transmission unit (MTU) value may be set for your needs. Higher
MTU can provide for a more efficient link because each packet will carry more data while
the overhead in the packet such as header information does not get larger with the size
of the packet. So the bulk throughput on the link will go up. Generally a large packet size
can occupy the time on the link, so the higher MTU can increase lag time and minimum
latency which is not appropriate for all applications.
 Enable KeepAlive: Enables/disables TCP keep alive packets.
• KeepAlive Timer: When Enable KeepAlive is selected, this input box indicates
how often the device should send keep alive packets.
• KeepAlive Max Fail: Number of times the gateway should re-attempt the
connection after a failure.
 PPP Dial Up Delay Seconds: The number of seconds the gateway will pause before
attempting PPP authentication. The default (0) means that the gateway will pause a
random number of seconds before attempting authentication. This helps prevents the
PPP server from being flooded with authentication requests after a power shutdown or a
reset.
 Limit Retry Time of PPP Password on Authentication Error: Number of times the
gateway should re-attempt PPPoE authentication after a failure.
 NAT Public Address (available if NAT is enabled). Enter 0.0.0.0 to specify that the
device should use pubic IP addresses provided by the network.
 Enable Fullcone NAT: RFC 3489 defines four types of Network Address Translation
(NAT). Fullcone NAT. As with other types of NAT there is a mapping from a public IP
address to a private IP address. The external public IP address is extended with the
external port. With Fullcone NAT once the mapping is created any external host may
send packets to the private IP address by sending to the external IP address and port.
Other types of NAT have restrictions such as the sending IP address must initially have
had packets sent from the private IP address and port regardless of the external port, or
from the private IP address and the external port.
 Dial on demand
: When this mode is selected, the connection that has no traffic within
assigned disconnect timeout (e.g. 1 minute) will be automatically disconnected. The
connection will be activated again when traffic arrives. This function is advantageous for
users who are charged with online time. It should be noted that some programs
automatically link to Internet. Connections will not be disconnected under these data
streams.
• Inactivity Timeout: When Dial on demand is selected, this setting indicates that
after how long the connection will be disconnected in the absence of traffic. If the
value is 0, connection will not be disconnected.
 Manual Connect: connect/disconnect PPPoE connection manually.
 MAC Clone: Clicking the Clone the PC MAC Address button will use the MAC address
from the connected PC for the MAC address of the gateway.
 Use Static IPv4 Address: Defines a static IP address (v4) which you enter in the IPv4
Address text box which is displayed when the Use Static IPv4 Address check box is
selected.
 Enable PPP Debug Mode: Used to debug PPPoE issues. Use only when instructed by
your ISP.