Chapter 4 WAN
PMG5318-B20B User’s Guide
27
Authentication
Method
The GPON Device supports PAP (Password Authentication Protocol) and CHAP
(Challenge Handshake Authentication Protocol). CHAP is more secure than PAP;
however, PAP is readily available on more platforms.
Use the drop-down list box to select an authentication protocol for outgoing calls.
Options are:
AUTO
- Your GPON Device accepts either CHAP or PAP when requested by this remote
node.
PAP
- Your GPON Device accepts PAP only.
CHAP
- Your GPON Device accepts CHAP only.
MSCHAP
- Your GPON Device accepts MSCHAP only. MS-CHAP is the Microsoft version
of the CHAP.
Enable NAT
Loopback
Use this when you use NAT virtual server settings to forward traffic from the WAN to an
internal server with a private IP address on the LAN side. NAT loopback lets users on
the LAN connect to the external public WAN IP address of the GPON Device to access
the server on the LAN.
Enable Fullcone NAT This field is available only when you select
Enable NAT
. Select this check box to
activate full cone NAT on this connection.
Dial on demand
Select this to have the GPON Device only bring up the connection when there is traffic.
Specify after how many minutes of no traffic the GPON Device drops the connection.
PPP IP extension
Select this only if your service provider requires it. PPP IP extension extends the service
provider’s IP subnet to a single LAN computer.
•
It lets only one computer on the LAN connect to the WAN.
•
The public IP address from the ISP is forwarded through DHCP to the LAN computer
instead of being used on the WAN PPP interface.
•
It disables NAT and the firewall.
•
DHCP tells the LAN computer to use the gateway as the default gateway and DNS
server.
•
The GPON Device bridges IP packets between the WAN and LAN ports except
packets destined for the GPON Device’s LAN IP address.
Use Static IPv4
Address
Select this option if you have a fixed IPv4 address assigned by your ISP.
IPv4 Address
Enter the IPv4 address assigned by your ISP.
Use Static IPv6
Address
Select this option if you have a fixed IPv6 address assigned by your ISP.
IPv6 Address
Enter the IPv6 address assigned by your ISP.
Enable IPv6
Unnumbered Model
Select this to enable IPv6 processing on the interface without assigning an explicit IPv6
address to the interface.
Launch Dhcp6c for
Address
Assignment (IANA)
Select this check box to obtain an IPv6 address from a DHCPv6 server.
The IP address assigned by a DHCPv6 server has priority over the IP address
automatically generated by the GPON Device using the IPv6 prefix from an RA.
Launch Dhcp6c for
Prefix Delegation
(IAPD)
Select this to use DHCP PD (Prefix Delegation) that enables the Device to pass the IPv6
prefix information to its LAN hosts. The hosts can then use the prefix to generate their
IPv6 addresses.
Enable PPP Debug
Mode
Select this option to display PPP debugging messages on the console.
Table 14
WAN Service: PPPoE (continued)
LABEL
DESCRIPTION
