Application scenarios of smart DNS on the USG9000

If an intranet has a DNS server deployed, you can enable smart DNS on the FW to reply to DNS requests of users from different ISP networks so that the users can obtain the most appropriate addresses (address on the same ISP network as the user). When a user initiates access traffic (data traffic), the most appropriate address is used as the destination address, ensuring that the traffic from the user is forwarded over the ISP network of the user to the intranet Web server that provides services only for this ISP network. In this way, the user's traffic does not have to make a detour on other ISP networks to reach the Web server, ensuring the shortest Web access delay and best service experience.

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