Billion Electric Company BiPAC 7402R2 User Manual download pdf (Page 49)

BiPAC 7402R2 ADSL2+ VPN Firewall Router

Chapter 4:Configuration

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: 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.

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.

Discover Primary / Secondary DNS: This setting enables/disables whether the primary/secondary

DNS server address is requested from a remote PPP peer using IPCP. The default setting for this

command is enabled.

Give DNS to Relay: Controls whether the PPP Internet Protocol Control Protocol (IPCP) can request

the DNS server IP address for a remote PPP peer. Once IPCP has discovered the DNS server IP

address, it automatically gives the address to the local DNS relay so that a connection can be

established.

Give DNS to Client: Controls whether the PPP Internet Protocol Control Protocol (IPCP) can request a

DNS server IP address for a remote PPP peer. Once IPCP has discovered the DNS server IP address, it

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Billion Electric Company BiPAC 7402R2 User Manual Page 49

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