VoIP/ 802.11g ADSL2+ Firewall Router
Chapter 4: Configuration
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Connect to Demand:
If you want to establish a PPPoA session only when there is a packet
requesting access to the Internet (i.e. when a program on your computer attempts to access
the Internet).
Idle Timeout:
Auto-disconnect the broadband firewall gateway when there is no activity on the
line for a predetermined period of time.
Detail:
You can define the destination port and packet type (TCP/UDP) without checking by
timer. It allows you to set which outgoing traffic will not trigger and reset the idle timer.
RIP:
RIP v1, RIP v2, and RIP v2 Multicast. Check to enable RIP function.
MTU:
Maximum Transmission Unit. The size of the largest datagram (excluding media-specific
headers) that IP will attempt to send through the interface.
TCP MSS Clamp:
It is enabled by default. All TCP traffic routed through the interface will be
examined. If a TCP SYN (synchronize/start) segment is sent with a maximum segment size larger
than the interface MTU (Maximum Transmission Unit), the MSS option will be rewritten in order to
allow TCP traffic to pass through the interface without requiring fragmentation.