Hi , >I don't know that anything you have said indicates that MPPC is available. >It rarely is. Sorry for mine behavior. I thought it maybe the pppol2tp driver's bug(have not handle this case). Now I'll ask l2tp user about that. -- c.j -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html