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dns doctoring

michael18
Beginner
Beginner

is it possible to intercept a dns lookup on a dmz and direct it to an internal server.

I have a wireless controller for guest access on a dmz. to authenticate, the wireless controller intercepts the first get syn and redirects it to a guest manager on the inside. I dont have a dns server on the dmz and dont want to use the inside dns server. the ISP will not allow a private address on their dns server so I need a way of redirecting the first get syn to the guest manager for authentication. once authenticated the traffic will use the ISP dns for web traffic.

I'd appreciate any help

1 Reply 1

Jeff Van Houten
Contributor
Contributor

If you're providing guest access can't you just give them a publicly available dns server? Try 8.8.8.8

Sent from Cisco Technical Support iPad App

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