NAT service configuration commands

configure
    - service
        - nat
            - nat-policy nat-policy-name [create]
            - no nat-policy nat-policy-name
                - block-limit [1..40]
                - no block-limit [
                - description description-string
                - no description
                - filtering filtering-mode
                - no filtering
                - pool nat-pool-name service-name service-name
                - pool nat-pool-name router router-instance
                - no pool
                - port-limits
                    - forwarding limit
                    - no forwarding
                    - watermarks high percentage-high low percentage-low 
                    - no watermarks 
                - session-limits
                    - max num-sessions
                    - no max
                    - watermarks high percentage-high low percentage-low 
                    - no watermarks
                - tcp-mss-adjust segment-size
                - no tcp-mss-adjust 
                - [no] timeouts
                    - icmp-query [min minutes] [sec seconds] 
                    - no icmp-query
                    - tcp-established [hrs hours] [min minutes] [sec seconds]
                    - no tcp-established 
                    - tcp-rst [min minutes] [sec sec]
                    - no tcp-rst
                    - tcp-syn [hrs hours] [min minutes] [sec seconds]
                    - no tcp-syn
                    - tcp-time-wait [min minutes] [sec seconds]
                    - no tcp-time-wait
                    - tcp-transitory [hrs hours] [min minutes] [sec seconds]
                    - no tcp-transitory
                    - udp [hrs hours] [min minutes] [sec seconds]
                    - no udp
                    - udp-dns [hrs hours] [min minutes] [sec seconds]
                    - no udp-dns 
                    - udp-inital [min minutes] [sec seconds]
                    - no udp-inital
                - [no] udp-inbound-refresh
            - port-forwarding
                - lsn router router-instance [b4 ipv6-address] [aftr ipv6-address] ip ip-address protocol {tcp | udp} [port port] [outside-ip ipv4-address] [outside-port port] [nat-policy nat-policy-name]
                - no lsn router router-instance [b4 ipv6-address] ip ip-address protocol {tcp | udp} port port [nat-policy nat-policy-name]