Dynamic NAT configurations translate the IP address of packets going out from one interface to another interface based on configured conditions. Dynamic NAT requires packets be switched through a NAT router to generate translations in the translation table.
To add or edit dynamic NAT settings:
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Source List ACL |
Lists an ACL to define the packet selection criteria for the NAT configuration. NAT is applied only on packets which match a rule defined in the access-list. These addresses (once translated) are not exposed to the outside world when the translation address is used to interact with the remote destination. |
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Network |
Displays Inside or Outside NAT as the network direction for the dynamic NAT configuration. |
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ACL Precedence |
Lists the administrator-assigned priority set for the listed source list ACL. The lower the value listed, the higher the priority assigned to this ACL rule. |
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Interface |
Lists the VLAN (from 1 - 4094) used as the communication medium between the source and destination points within the NAT configuration. |
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Overload Type |
Displays the overload type used when several internal addresses are NATed to only one or a few external addresses. Options include NAT Pool, One Global Address and Interface IP Address. The default setting is Interface IP Address. |
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NAT Pool |
Displays the name of an existing NAT pool used with the dynamic NAT configuration. |
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Overload IP |
If One Global IP Address is selected as the Overload Type, define an IP address to use as a filter address for the IP ACL rule. |