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Network Addres Translation(NAT) is an Internet standard that enbles a local-area network to use one set of IP addresses for internet traffic and another set of ( ) IP addresses for external traffic. The main use of NAT is to limit the number of public IP addresses that an organization or company must use, for both economy and ( ) purposes. NAT remaps an IP address space into another by modifying network address information in the ( ) header of packets while they are in transit across a traff
第46题: IPv6地址的格式前缀(FP)用于表示(1) 。为实现IP地址的自动配置,IPv6主机将(2) 附加在地址前缀1111 1110 10之后,产生一个链路本地地址,如果通过了邻居发现协议的验证,则表明自我配置的链路本地地址是有效的。
(1)A.地区号
B.地址类型或子网地址
C.网络类型
D.播送方式或子网号
(2)A.32位二进制随机数
B.主机名字
C.网卡MAC地址
D.iPv 4地址