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program on your computer attempts to access the Internet). In this mode, you must
set Idle Timeout value at same time.
Idle Timeout: Auto-disconnect the broadband firewall gateway when there is no activity
on the line for a predetermined period of time. The minimum value is 10 minutes.
MTU: Maximum Transmission Unit. The size of the largest datagram (excluding
media-specific headers) an IP attempts to send through the interface.
Obtain DNS Automatically: Select this check box to use DNS.
Primary DNS/ Secondary DNS: Enter the IP addresses of the DNS servers. The DNS
servers are passed to the DHCP clients along with the IP address and the subnet mask.
PPPoA Connection
PPPoA stands for Point to Point Protocol over ATM Adaptation Layer 5 (AAL5). It provides
access control and billing functionality in a manner similar to dial-up services using PPP.
Description: User-definable name for the connection.
VPI/VCI: Enter the VPI and VCI information provided by your ISP.
Username: Enter the username provided by your ISP. You can input up to 128
alphanumeric characters (case sensitive). This is in the format of “username@ispname”
instead of simply “username”.
Password: Enter the password provided by your ISP. You can input up to 128
alphanumeric characters (case sensitive).
Encapsulation method: Select the encapsulation format, the default is LLC. Select the
one provided by your ISP
NAT: The NAT (Network Address Translation) feature allows multiple users to access
the Internet through a single IP account, sharing a single IP address. If users on your LAN