Billion Electric Company BiGuard 30 Manual De Usuario

 

 

27

 

 
In the above example, an FTP Server (IP_192.168.2.2) and an HTTP Server 
(IP_192.168.2.3) are connected to the Internet via WAN1 (IP_200.200.200.1) on 
BiGuard 30. A remote computer is trying to access these servers via the Internet, 
and makes a DNS request. The DNS request (

www.mydomain.com

) will be sent 

through WAN1 (200.200.200.1) to the built-in DNS server. The DNS server will reply 
200.200.200.1 because this is the only active WAN port. Should WAN1 fail, BiGuard 
30 will instead reply with WAN2’s IP address (100.100.100.1), and the remote PC 
will gain access to the network via WAN2. By configuring BiGuard 30 for DNS 
Inbound Fail Over, incoming requests will enjoy increased reliability when accessing 
your network. 
 
Please refer to appendix H for example settings. 
 

 
DNS Inbound Load Balancing allows BiGuard 30 to intelligently manage inbound 
traffic based on the amount of load of each WAN connection by assigning the IP 
address with the lowest traffic load to incoming requests. 
 

192.168.2.2 

192.168.2.3 

200.200.200.1 

www.mydomain.com

200.200.200.1 

100.100.100.1 

100.100.100.1 

192.168.2.2 

192.168.2.3 

1st connection 

2

nd

 connection

1st connection 

2

nd

 connection

www.mydomain.com