How to secure PPPOE network

RouterOS General
1

HI all
i have rb 1100AHX2 upgraded to 6.33.3 level 6
i have set up it with PPPoE and evry thing is going ok
the matter which i need to make prevent to all snifer programs because there are who use Cain and get all PPPoE usernames &passwords

2

:frowning: :frowning: :frowning: