/ppp profile
add change-tcp-mss=yes local-address=192.168.7.22 name=statix
/interface l2tp-client
add connect-to=labo.com disabled=no mrru=1600 name=statix password=1 profile=statix user=1
/ip firewall mangle
add action=mark-connection chain=input comment=Statix-in in-interface=statix \
    new-connection-mark=statix-in
add action=mark-routing chain=output comment=Statix-out connection-mark=\
    statix-in new-routing-mark=statix-out passthrough=no
add action=mark-connection chain=forward connection-state=new in-interface=\
    statix new-connection-mark=statix_conn
add action=mark-routing chain=prerouting connection-mark=statix_conn \
    in-interface=all-ethernet new-routing-mark=to_statix
/ip route
add check-gateway=ping distance=1 gateway=statix routing-mark=statix-out
add distance=1 gateway=statix routing-mark=to_statix
/ip neighbor discovery set statix discover=no
/system script
add name=ka owner=admin policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive source=\
    "/ping 192.168.7.1 count=5 interface=statix"
/system scheduler
add interval=10s name=ka on-event=ka policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive \
    start-time=startup