An example of how to configure NAT settings to direct return traffic through the same provider network.

1. Configure source NAT masquerading on all traffic that enters the Provider A network.

   vyatta@vyatta# set service nat source rule 1 description 'Provider A'

   vyatta@vyatta# set service nat source rule 1 outbound-interface dp0p161p1
   

   vyatta@vyatta# set service nat source rule 1 translation address masquerade
   

2. Configure source NAT masquerading on all traffic that enters the Provider B network.

   vyatta@vyatta# set service nat source rule 20 description 'Provider B'

   vyatta@vyatta# set service nat source rule 20 outbound-interface dp0p224p1

   vyatta@vyatta# set service nat source rule 20 translation address masquerade

3. Configure source NAT masquerading on all traffic that enters the Provider C network.

   vyatta@vyatta# set service nat source rule 30 outbound-interface dp0p256p1

   vyatta@vyatta# set service nat source rule 30 description 'Provider C'

   vyatta@vyatta# set service nat source rule 30 translation address masquerade

4. Commit the configuration.

   vyatta@vyatta# commit

   [edit]

5. Optional: View the configuration.

   vyatta@vyatta# show service

   
   nat {
           source {
                   rule 1 {
                           description "Provider A"
                           outbound-interface dp0p161p1
                           translation {
                                   address masquerade
                           }
                   }
                   rule 20 {
                           description "Provider B"
                           outbound-interface dp0p224p1
                           translation {
                                   address masquerade
                           }
                   }
                   rule 30 {
                           description "Provider C"
                           outbound-interface dp0p256p1
                           translation {
                                   address masquerade
                           }
                   }
           }
    }
   [edit]