/interface ethernet
set [ find default-name=ether1 ] name=LAN
/interface lte
set [ find ] mac-address=1E:49:7B:A2:B6:24 name=lte1
/interface pptp-client
add add-default-route=yes connect-to=91.211.XXX.XXX disabled=no name=pptp-out1 password=PASSWORD \
    user=USER
/ip address
add address=192.168.1.10/24 interface=LAN network=192.168.1.0
/ip dhcp-client
add dhcp-options=hostname,clientid disabled=no interface=lte1
/ip firewall nat
add action=masquerade chain=srcnat out-interface=pptp-out1
add action=dst-nat chain=dstnat dst-port=88 in-interface=pptp-out1 log=yes protocol=tcp \
    to-addresses=192.168.1.1 to-ports=222