referencia:
firmware:
# ps|grep ppoecd
76 root 856 S pppoecd vlan1 -u XXXXXXXXXXXXXXXXXXXXXXX -p XXXXXXX -r 1492 -t 1492 -i 0 -I 30 -N 5 -T 5 -P 0 -C pppoe_down -R -k
# nvram show | grep vlan1
vlan1hwname=et0
vlan1ports=4 5
# nvram set vlan6hwname=et0
# nvram set vlan6ports="4t 5"
# nvram set wan_ifnameX=vlan6
# nvram commit
# reboot