dans l'ordre :
/interface vlan
add interface=etherWAN (ou ether7) name=vlan832-orange vlan-id=832 mtu=1500 arp=enabled use-service-tag=no
/ip dhcp-client
add interface=vlan832-orange disabled=no add-default-route=yes default-route-distance=1 use-peer-dns=yes use-peer-ntp=yes dhcp-options=hostname,clientid,authsend,userclass,vendor-class-identifier
/ip dhcp-client option
add code=77 name=userclass value=0x2b46535644534c5f6c697665626f782e496e7465726e65742e736f66746174686f6d652e4c697665626f7833
add code=90 name=authsend value=0x0000000000000000000000006674692f**************************
add code=60 name=vendor-class-identifier value=0x736167656d
le dhcp-client est sur le vlan832-orange et non sur SFP1