1. DNS 1.1. What is the use of DNS redirection in Cyberoam and when it should be enabled? Applicable - upto versions 9.4.3.4 Use DNS redirection when you want to redirect complete DNS traffic on the Cyberoam loop back IP address. Enable DNS redirection: if all the desktops in your network are configured with different DNS IP address. In this case, to avoid the chance of inconsistency in browsing speed or no browsing at all, enable DNS redirection. It will redirect all DNS queries to Cyberoam and Cyberoam itself will resolve the query and not send the request to the external world.  if you are using multiple internet connectivity on Cyberoam. Please note, this feature is discontinued from version 9.5.0 build 21 onwards 1.2. Is it necessary to set Cyberoam IP address as DNS in all the desktops machines in my network?  No, it is not necessary to set Cyberoam IP address as DNS in all the desktops; you can always set DNS IP address provided by your Internet Service Provider. However, to avoid browsing inconsistency problem, set Cyberoam IP address as DNS. 1.3. How many DNS addresses can be specified in Cyberoam? It is advisable to set 2 or 3 DNS address so if the first DNS server is not reachable then DNS query can be served by the second DNS server. 1.4. If I set multiple DNS address, will it affect browsing speed?   No, browsing speed will not be effected.