Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Step-by-Step Configuration and Troubleshooting Best Practices for the NGFW, NGIPS and AMP Technologies A Visual Guide to the Cisco Firepower Threat Defense (FTD)
Community Member

I'm looking for solution to configure ASA as DNS proxy

I'm sure it was somewhere, but I cannot find.

How can I configure ASA as DNS Proxy (or DNS spoofing), so I can use internal ASA IP address as DNS server address on PC?

5 REPLIES

Re: I'm looking for solution to configure ASA as DNS proxy

AFAIK it can't be done on an ASA. I looked it up and there is nothing on it. You can do DNS doctoring which is completely different. You can do it on the router though.

Hope that helps.

Green

Re: I'm looking for solution to configure ASA as DNS proxy

This works...

static (outside,inside) udp interface 53 4.2.2.2 53 netmask 255.255.255.255

Re: I'm looking for solution to configure ASA as DNS proxy

That's killer Adam!

Green

Re: I'm looking for solution to configure ASA as DNS proxy

Haha thanks. I guess it's not technically a proxy as the client is still hitting the dns server, not the asa...but it will allow to use the asa address as the dns server in the client.

Community Member

Re: I'm looking for solution to configure ASA as DNS proxy

Okay, that's the easy way :)

But then I need to set up static DNS address. What if I receive it through DHCP or DHCP options?

487
Views
5
Helpful
5
Replies
CreatePlease to create content