set firewall flowtable OFFLOAD interface 'eth0'
set firewall flowtable OFFLOAD interface 'eth1'
set firewall flowtable OFFLOAD offload 'software'

set firewall ipv4 forward filter default-action 'accept'
set firewall ipv4 forward filter rule 5 action 'offload'
set firewall ipv4 forward filter rule 5 offload-target 'OFFLOAD'
set firewall ipv4 forward filter rule 5 state 'established'
set firewall ipv4 forward filter rule 5 state 'related'

set nat cgnat pool external ext01 external-port-range '1024-65535'
set nat cgnat pool external ext01 per-user-limit port '2000'
set nat cgnat pool external ext01 range 192.168.122.222/32
set nat cgnat pool internal int01 range '100.64.0.0/28'
set nat cgnat rule 10 source pool 'int01'
set nat cgnat rule 10 translation pool 'ext01'

set nat source rule 100 outbound-interface name 'eth0'
set nat source rule 100 source address '10.0.0.0/24'
set nat source rule 100 translation address 'masquerade'

vyos@r4:~$ show nat source translations 
Traceback (most recent call last):
  File "/usr/libexec/vyos/op_mode/nat.py", line 337, in <module>
    res = vyos.opmode.run(sys.modules[__name__])
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/vyos/opmode.py", line 263, in run
    res = func(**args)
          ^^^^^^^^^^^^
  File "/usr/libexec/vyos/op_mode/nat.py", line 296, in _wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/libexec/vyos/op_mode/nat.py", line 331, in show_translations
    return _get_formatted_translation(nat_translation, direction, family,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/libexec/vyos/op_mode/nat.py", line 266, in _get_formatted_translation
    timeout = meta['timeout']
              ~~~~^^^^^^^^^^^
KeyError: 'timeout'
vyos@r4:~$