8. 参考文献 (References)

8.1. 规范性参考文献 (Normative References)

[1] Bradner, S., "用于在 RFC 中指示要求级别的关键词 (Key words for use in RFCs to Indicate Requirement Levels)", BCP 14, RFC 2119, March 1997.

[5] Deering, S., Ed., "ICMP Router Discovery 消息 (ICMP Router Discovery Messages)", RFC 1256, September 1991.

[14] Perkins, C., "IP 内的 IP 封装 (IP Encapsulation within IP)", RFC 2003, October 1996.

[16] Perkins, C., "IP 内的最小封装 (Minimal Encapsulation within IP)", RFC 2004, October 1996.

[13] Hanks, S., et al., "通用路由封装 (Generic Routing Encapsulation, GRE)", RFC 1701, October 1994.

[23] Rivest, R., "MD5 消息摘要算法 (The MD5 Message-Digest Algorithm)", RFC 1321, April 1992.

[RFC 3344] Perkins, C., Ed., "IPv4 的 IP 移动性支持 (IP Mobility Support for IPv4)", RFC 3344, August 2002.

[RFC 3220] Perkins, C., Ed., "IPv4 的 IP 移动性支持 (IP Mobility Support for IPv4)", RFC 3220, January 2002.