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Configuring NAT Rules Without Defining Pools

For host-to-host NAT, you can define a NAT rule without having to specify a pool. Instead, you specify the translated address directly in a NAT rule.

The example in this section shows how to create a term no-pool-term to dynamically assign the translated address from the prefix 121.0.1.0/24 for source address translation. You do not have to specify the referenced pool in the term. Similarly, you can configure destination static NAT by defining a destination prefix in the term instead of defining the destination pool.

To configure NAT rules without defining pools:

  1. Navigate to the top of the configuration hierarchy in either the J-Web or CLI configuration editor.
  2. Perform the configuration tasks described in Table 80.
  3. Apply the NAT configuration to an interface. See Applying NAT to an Interface.

Table 80: Defining NAT Rules Without NAT Pools

Task

J-Web Configuration Editor

CLI Configuration Editor

Navigate to the Nat level in the configuration hierarchy.
  1. In the configuration editor hierarchy, select Services.
  2. Next to Nat, click Configure.

From the top of the configuration hierarchy, enter

edit services nat

Define no-pool-rule and set its match direction.
  1. On the Nat page, next to Rule, click Add new entry.
  2. In the Rule name box, type no-pool-rule.
  3. From the Match direction list, select input.

Set the rule name and match direction:

set rule no-pool-rule match-direction input

Define no-pool-term and set its translation type—dynamic.
  1. Next to Term, click Add new entry.
  2. In the Term name box, type no-pool-term.
  3. Next to Then, click Configure.
  4. From the Designation list, select Translated.
  5. Next to Translated, click Configure.

Set the term name and translation type:

set rule no-pool-rule term no-pool-term then translated translation-type source dynamic

Define an action for no–pool-term—source prefix. This prefix is used for network address translation, and you do not have to specify a referenced pool.
  1. From the Source pool choice list, on the Translated page, select Source prefix.
  2. In the Source prefix box, type 121.0.1.0/24.
  3. Click OK.

Set the source prefix:

set rule no-pool-rule term no-pool-term then translated source-prefix 121.0.1.0/24

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