5.3 DNS Forwarder
Before forwarding a query...
These options allow setting of where the DNS Forwarder would search for the name or IP address before the query is forwarded to another DNS server.
•’hosts’ file — this file can be found in any operating system supporting TCP/IP. Each row of this file includes host IP addresses and a list of appropriate DNS names. When any DNS query is received, this file will be checked first to find out whether the desired name or IP address is included. If not, the query is forwarded to a DNS server.
If this function is on, DNS Forwarder follows the same rule. Use the Edit button to open a special editor where the HOSTS file can be edited via Administration Console even if this console is connected to WinRoute remotely.
Figure 5.12 Editor of the Hosts system file
•DHCP lease table— if the hosts within local network are configured by the DHCP server in WinRoute (see chapter 5.4), the DHCP server knows what IP address was defined for each host. After starting the system, the host sends a request for IP address definition including the name of the host.
DNS Forwarder can access DHCP lease tables and find out which IP address has
been assigned to the host name. If asked to inform about the local name of the host, DNS Forwarder will always respond with the current IP address.
Note: If both options are disabled, the DNS Forwarder forwards all queries to other DNS servers.
Combine the name ... with DNS domain
Insert the name of the local DNS domain in this text field.
If a host sends a query to obtain an IP address, it uses the name only (it has not found out the domain yet). DNS Forwarder needs to know the name of the local
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