常用的网络协议　　ARP(Address Resolution Protocol)地址解析协议　　SNMP(Simple Network Management P)网络管理协议　　BGP4(Border Gateway Protocol Vertion 4)边界网关协议　　DHCP(Dynamic Host Configuration Protocol)动态主机配置协议　　FTP(File Transfer Protocol)文件传输协议　　HDLC(High-Level Data Link Control)高层数据链路协议　　HTTP1.1(Hypertext Transfer Protocol Vertion 1.1)超文本传输协议　　HTTPS(Secure Hypertext Transfer Protocol)安全超文本传输协议　　ICMP(Internet Control Message Protocol)Internet控制信息协议　　IPv6(Internet Protocol Version 6)Internet协议　　POP3(Post Office Protocol Version 3)邮局协议PPP　　(Point to Point Protocol)点对点协议　　RIP(Routing Infomation Protocol)路由信息协议　　SMTP(Simple Mail Transfer Protocol)简单邮件传送协议　　TCP/IP(Transmission Control Protocol/Internet Protocol)传输控制协议/Internet协议　　TELNET Protocol虚拟终端协议　　Time Protocol时间协议　　TFTP(Trivial File Transfer Protocol)小文件传输协议　　UDP(User Datagram Protocol)用户数据报协议　　网络层协议　　data transfer:　　IP (Internet Protocol)　　control protocols:　　ICMP (the Internet Cotrol Message Protocol)　　ARP (the Address Resolution Protocol) IP Address ---------------> Ethernet Address　　RARP (the Reverse Address Resolution Protocol)　　BOOTP　　DHCP (Dynamic Host Configuration Protocol)　　routing:　　IGP(the Interior Gateway Routing Protocol) a routing algorithm within an AS(Autonomous System)　　1.RIP(Routing Information Protocol)　　2.OSPF(Open Shortest Path First)　　EGP (the Exterior Gateway Routing Protocol) a routing algorithm between ASes　　BGP-4　　IGMP(Internet Group Management Protocol)。