User`s manual

BIPAC-74x Series Router – 741 GE, 741 GE V2.0 and 743 GE
Chapter 3: Basic Installation and Configuration
Port Setting
This section allows you to configure the settings for the router’s Ethernet ports to solve
some of the compatibility problems that may be encountered while connecting to the
Internet, as well allowing users to tweak the performance of their network.
Port # Connection Type: Five options to choose from: Auto, 10M half-duplex, 10M full-
duplex, 100M half-duplex or 100M full-duplex. Sometimes, there are Ethernet compatibility
problems with legacy Ethernet devices, and you can configure different types to solve
compatibility issues. The default is Auto, which users should keep unless there are
specific problems with PCs not being able to access your LAN.
Port # Rate Limit: This function allows you to limit the speed of Ethernet traffic for the
relevant port. The value entered will limit the speed of the port to the specified value’s
multiple of 32kbps. For example, to limit the speed of Port 1 to 128kbps, set a value of 4
for that port and Enable port rate limiting for that port. This can be useful if you want to
prevent one particular PC on your network from using all available Internet bandwidth.
This function will limit the speed of that port for all Ethernet traffic,
including LAN traffic.
IPv4 TOS priority Control (Advanced users): TOS, Type of Services, is the 2
nd
octet of
an IP packet. Bits 6-7 of this octet are reserved and bit 0-5 are used to specify the priority
of the packet.
This feature uses bits 0-5 to classify the packet’s priority. If the packet is high priority, it will
flow first and will not be constrained by the Rate Limit. Therefore, when this feature is
enabled, the router’s Ethernet switch will check the 2
nd
octet of each IP packet. If the value
in the TOS field matches the checked values in the table (0 to 63), this packet will be
treated as high priority.
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