[FS#214] Cannot configure different DNS for 2 interfaces

[LEDE Bugs]

The following task has a new comment added:

FS#214 - Cannot configure different DNS for 2 interfaces
User who did this - Jo-Philipp Wich (jow-)

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Such a configuration is not possible due to the way the system resolver works. You can setup firewall rules to redirect DNS traffic from the guest interface to particular upstream servers or set DHCP options to tell clients to use different upstream NS.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=214#comment599