一个INSIDE口 多个OUTSIDE口的NAT配置 Feature HistoryRelease  Modification  12.2(4)T This feature was introduced. 12.2(4)T2 Support for the Cisco 7500 series routers was added. This document describes the NAT—Ability to ...

ContentsIntroductionPrerequisites      Requirements      Components Used      ConventionsBackground InformationAccess List Approach      Host 1 to Hos...

NAT and Same Security Level Interfaces NAT is not required between same security level interfaces even if you enable NAT control. You can optionally configure NAT if desired. However, if you configure dynamic NAT when NAT control is enabled, then NAT...

Order of NAT Commands Used to Match Real Addresses The security appliance matches real addresses to NAT commands in the following order: 1. NAT exemption (nat 0 access-list)—In order, until the first match. Identity NAT is not included in this ...

Bypassing NAT When NAT Control is Enabled If you enable NAT control, then inside hosts must match a NAT rule when accessing outside hosts. If you do not want to perform NAT for some hosts, then you can bypass NAT for those hosts (alternatively, you c...

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Enable NAT−Traversal (#1 RA VPN Issue)NAT−Traversal or NAT−T allows VPN traffic to pass through NAT or PAT devices, such as a LinksysSOHO router. If NAT−T is not enabled, VPN Client users often appear to connect to the PIX or ...

Verify Crypto Map Sequence NumbersIf static and dynamic peers are configured on the same crypto map, the order of the crypto map entries is veryimportant. The sequence number of the dynamic crypto map entry must be higher than all of the other static...