I looked at the code and changed pppd into ppp just for LNS this time. I am sure it can work with some parameters like a ppp server. But my concern is if this LNS can work with some other switch which also supports L2TP tunnel, such as Redback. Before I change pppd to ppp, there's no problem for l2tpd to talk with Readback. Since I cannot do any real test with Redback now and only have little knowledge of it, I hope get some idea from all of you first.
Thanks. Jack
