Technical Reference
OPEN824RL / RLW ADSL / VoIP Routers
48
Field Definition
Connect to Demand
Select this if you want to establish a PPPoA session only when
there is a packet requesting access to the Internet. (ie, when a
program on your computer attempts to access the Internet.)
This auto-disconnects the broadband firewall gateway when there is no activity on the line
for a pre-determined period of time.
Idle Timeout
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 the 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.
Advanced Options (PPPoA)
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 the primary / secondary DNS server address if 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 automatically gives the address to the local DNS client so that a connection can
be established.
Give DNS to DHCP Server
Similar to the above, but gives the DNS server address to the DHCP server.
Discover Primary NBNS /
Discover Secondary NBNS
This setting enables/disables whether the primary/secondary NBNS server address is
requested from a remote PPP peer using IPCP. The default setting for this command is
Disabled
.
Discover Subnet Mask
Specifies whether the subnet mask given by IPCP negotiation process is to be used.
Give Subnet Mask To DHCP
Server
Enables you to change your DHCP Server settings by using the given information in the
IPCP negotiation process.
