Billion BiPAC 7401VP User Manual page 47

Connection:
Always on: If you want the router to establish a PPPoE session when starting up and to
automatically re-establish the PPPoE session when disconnected by the ISP.
Connect to Demand: If you want to establish a PPPoE 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: This option helps to discover the optimal MTU size automatically. Default is enabled.
MAC Address Spoofing: This option is required by some service providers. You must fill in the MAC
address that specify by service provider when it is required. Default is disabled.
Advanced Options (PPPoE)
LLC Header: Selects encapsulation mode, true for using LLC or false for using VC-Mux.
Create Route: This setting specifies whether a route is added to the system after IPCP (Internet
Protocol Control Protocol) negotiation is completed. If set to enabled, a route will be created which
directs packets to the remote end of the PPP link.
Specific Route: Specifies whether the route created when a PPP link comes up is a specific or default
route. If set to enabled, the route created will only apply to packets for the subnet at the remote end of
the PPP link. The address of this subnet is obtained during IPCP negotiation.
Subnet Mask: sets the subnet mask used for the local IP interface connected to the PPP transport. If
the value 0.0.0.0 is supplied, the netmask will be calculated from the class of the IP address obtained
during IPCP negotiation.
Route Mask: Sets the subnet mask used by the route that is created when a PPP link comes up. If it is
set to 0.0.0.0, the subnet mask is determined by the IP address of the remote end of the link. The class
of the IP address is obtained during IPCP (Internet Protocol Control Protocol) negotiation.
MRU: Maximum Receive Unit. This is negotiated during the LCP protocol stage.
Chapter 4: Configuration
VoIP/(802.11g) ADSL2+ Router
46