A.私有性 B.完整性 C.真實(shí)性 D.防重放
A. Generic Router Encapulation B. Generic Routing Encapulation C. General Routing Encapulation D. General Router Encapulation
A.創(chuàng)建tunnel虛擬接口,使需要加封裝的報(bào)文通過(guò)隧道接口進(jìn)行轉(zhuǎn)發(fā) B.隧道源端對(duì)報(bào)文加封裝 C.加封裝處理結(jié)束后由GRE負(fù)責(zé)報(bào)文轉(zhuǎn)發(fā) D.隧道對(duì)端的解封裝過(guò)程