Cisco Cisco ASA 5510 Adaptive Security Appliance 문제 해결 가이드

Contributed by Rama Darbha, Cisco TAC Engineer.
Mar 05, 2013

Introduction
 Prerequisites
      Requirements
      Components Used
      Conventions
 DNS Doctoring Examples
      DNS Server on the Inside of ASA
      DNS Server on the Outside of the ASA
      VPN NAT and DNS Doctoring
 Related Information

This document shows how DNS Doctoring is used on the Adaptive Security Appliance (ASA) to change the
embedded IP addresses in Domain Name System (DNS) responses so that clients can connect to the correct IP
address of servers.

DNS Doctoring requires configuration of Network Address Translation (NAT) on the ASA, as well as
enablement of the DNS inspection.

The information in this document is based on the Adaptive Security Appliance.

The information in this document was created from the devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If your network is live, make sure
that you understand the potential impact of any command.

Refer to Cisco Technical Tips Conventions for more information on document conventions.