A.GRE B.L2F C.L2F D.IPSec
A.150.150.0.0 B.150.150.0.8 C.150.150.8.0 D.150.150.16.0
A.默認(rèn)路由; B.直接路由; C.間接路由; D.動(dòng)態(tài)路由