Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

dns doctoring

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

Re: dns doctoring

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

483
Views
0
Helpful
1
Replies
CreatePlease login to create content