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Web content filtering setup successfully and filtering working perfectly.. But blocked site still can be access by VPN

I successfully setup open dns web content filtering and it's working perfectly.. But for testing purposes when i tried to access those blocked site with vpn, those site can be easily accessible 🥲.. Then what is the benefit of open dns web content filtering if vpn can bypass these settings easily?
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reham1
Cisco Employee
Cisco Employee

Hello,

While using a VPN connection, or another connection that routes your DNS and other traffic through a remote host, your DNS settings will change and reflect the DNS settings of the hosting server or computer.


As a result, It is not possible to specify a DNS resolver to be used while on these types of connections. To remedy this issue, you will need to request that the hosting server or computer be set to also use OpenDNS as its DNS resolver.