Cisco Cisco ASA 5515-X Adaptive Security Appliance 문제 해결 가이드

Contributed by Aaron Mcquaid, Cisco TAC Engineer.
Jul 02, 2012

Introduction
 Prerequisites
      Requirements
      Components Used
      Conventions
 Symptoms
 Conditions / Environment
 Cause / Problem Description
 Resolution
 Related Information

This document provides information about NAT addresses that fail after upgrading the Adaptive Security
Appliance (ASA) to version 8.4(3). This document also provides a resolution to this issue.

Readers of this document should have knowledge of these topics.

Basic understanding of the concept of Address Resolution Protocol (ARP) and proxy ARP

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The information in this document is based on these hardware and software versions.

Any Cisco ASA 5500 Series Adaptive Security Appliance

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Adaptive Security Appliance version 8.4(3) or later

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For more information on document conventions, refer to Cisco Technical Tips Conventions.

Starting with ASA version 8.4(3), the ASA does not respond to ARP requests received on an interface, for IP
addresses that are not a part of that interface's IP subnet. Before version 8.4(3), the ASA would respond to
ARP requests that were not in the IP subnet of the ASA's interface.