Billion Electric Company BIPAC-741 GE V2.0 User Manual

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Chapter 3 Configuration 
22 
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.  You can configure different types to solve the compatibility 
issues.   
Port # Rate Limit: When it is enabled, enter a rate value that is configured as multiple of 
32kbps.  This function limits the inbound and outbound Ethernet throughput around the value 
that you specified.  
TOS, Type of Services, is the 2
nd
 octet of IP packet.  The bits 6-7 of this octet are reserved and 
bit 0-5 are used to specify the priority of the packet. 
IPv4 TOS priority Control: This feature uses bits 0-5 to classify the packets’ priority.  If the 
packet is in high priority, it will flow first and will not be constrained by the Rate Limit.  
Therefore, when this feature is enabled, the embedded Ethernet switch IC will check the 2
nd
 octet 
of each IP packet.  If the value in the TOS field matches in the checked values in the table (0 to 
63), this packet will treat it as high priority. 
 
When you click DHCP Server, you get the following figure. You can disable or enable the 
DHCP server or enable the DHCP relay functions. 
 
If you check Disabled and click Next, then click Apply. The DHCP server function is disabled. 
Each PC in the LAN should assign a fixed IP address and set the PC’s gateway to the ADSL 
router. 
If you check DHCP Server and click Next, you can configure parameters of the DHCP server 
including the IP pool (starting IP address and ending IP address), leased time for each assigned 
IP address, DNS IP address, Gateway IP address. Those messages are sent to the DHCP client 
when it requests an IP address from the DHCP server. Click Apply to enable this function. If 
you check “Use Router as a DNS Server”, the ADSL Router will find the IP address from the 
outside network automatically and forward it back to requesting PC in the LAN.