摘要：
PPTP和L2TP的区别 PPTP uses TCP port 1723 for it's control connection and GRE (IP protocol 47) for the PPP data. PPTP supports data encryption by using MPPE.L2TP uses UDP to transport the PPP data, this is often encapsulated in IPSec for encryption instead of using MPPE.L2TP支持MP（Multilink Protocol），把 阅读全文
posted @ 2011-03-23 21:59
岌岌可危
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