^L:start:#@r,:compare:,进入#@d,f+1,往下#P IPv4、IPv6长度比较 IPv4、IPv6 Header比较 IPv6 位址表示法(压缩) 将IPv4位址对应到IPv6 ^L#@r,:header:,进入#@u,f-1,往上#@d,f+1,往下#P IPv4、IPv6长度比较 IPv4、IPv6 Header比较 IPv6 位址表示法(压缩) 将IPv4位址对应到IPv6 ^L#@r,:ipv6:,进入#@u,f-1,往上#@d,f+1,往下#P IPv4、IPv6长度比较 IPv4、IPv6 Header比较 IPv6 位址表示法(压缩) 将IPv4位址对应到IPv6 ^L#@r,:ipv4:,进入#@u,f-1,往上#P IPv4、IPv6长度比较 IPv4、IPv6 Header比较 IPv6 位址表示法(压缩) 将IPv4位址对应到IPv6 ^L:header:P IPv4 Header | 不变的栏位 VERSION IHL TYPE OF | TOTAL LENGTH 名称、位置改变的栏位 SERVICE | 移除的栏位 | |FRAGMENT 新增的栏位 IDENTIFICATION | FLAGS| OFFSET | | | TIME TO LIVE|PROTOCOL HEADER CHECKSUM | SOURCE ADDRESS --------------------------------------- DESTINATION ADDRESS OPTIONS |PADDING ^L | 不变的栏位 VERSION IHL TYPE OF | TOTAL LENGTH 名称、位置改变的栏位 SERVICE | 移除的栏位 | 新增的栏位 | |FRAGMENT IDENTIFICATION | FLAGS| OFFSET | TIME TO LIVE|PROTOCOL HEADER CHECKSUM | SOURCE ADDRESS --------------------------------------- DESTINATION ADDRESS ^L 不变的栏位 VERSION IHL TYPE OF FLOW LABEL 名称、位置改变的栏位 SERVICE 移除的栏位 新增的栏位 IDENTIFICATION | FLAGS| OFFSET | TIME TO LIVE|PROTOCOL HEADER CHECKSUM | SOURCE ADDRESS --------------------------------------- DESTINATION ADDRESS ^L 不变的栏位 VERSION TRAFFIC FLOW LABEL 名称、位置改变的栏位 1;37;46m CLASS 移除的栏位 新增的栏位 | TIME TO LIVE |PROTOCOL ADER CHECKSUM | SOURCE ADDRESS --------------------------------------- DESTINATION ADDRESS ^L 不变的栏位 VERSION TRAFFIC FLOW LABEL 名称、位置改变的栏位 1;37;46m CLASS 移除的栏位 新增的栏位 | | PAYLOAD LENGTH| NEXT | HOP LIMIT | HEADER | SOURCE ADDRESS --------------------------------------- DESTINATION ADDRESS ^LP IPv6 Header 不变的栏位 VERSION TRAFFIC FLOW LABEL 名称、位置改变的栏位 1;37;46m CLASS 移除的栏位 新增的栏位 | | PAYLOAD LENGTH| NEXT | HOP LIMIT | HEADER | SOURCE ADDRESS --------------------------------------- DESTINATION ADDRESS ^LG:start: ^L:compare:P IPv4: 32-bit 好像感觉不出来差多少? 以二进位表示的话两者长度分别会是... IPv6: 128-bit ^L0.1 IPv4: 32-bit 0 IPv6: 128-bit 0000 ^L IPv4: 32-bit 00 IPv6: 128-bit 00000000 ^L IPv4: 32-bit 000 IPv6: 128-bit 000000000000 ^L IPv4: 32-bit 0000 IPv6: 128-bit 0000000000000000 ^L IPv4: 32-bit 00000 IPv6: 128-bit 00000000000000000000 ^L IPv4: 32-bit 000000 IPv6: 128-bit 000000000000000000000000 ^L IPv4: 32-bit 0000000 IPv6: 128-bit 0000000000000000000000000000 ^L IPv4: 32-bit 00000000 IPv6: 128-bit 00000000000000000000000000000000 ^L IPv4: 32-bit 000000000 IPv6: 128-bit 000000000000000000000000000000000000 ^L IPv4: 32-bit 0000000000 IPv6: 128-bit 0000000000000000000000000000000000000000 ^L IPv4: 32-bit 00000000000 IPv6: 128-bit 00000000000000000000000000000000000000000000 ^L IPv4: 32-bit 000000000000 IPv6: 128-bit 000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 0000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 00000000000000 IPv6: 128-bit 00000000000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 000000000000000 IPv6: 128-bit 000000000000000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 0000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 00000000000000000 IPv6: 128-bit 00000000000000000000000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 000000000000000000 IPv6: 128-bit 000000000000000000000000000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 0000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 00000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 0000 ^L IPv4: 32-bit 000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 00000000 ^L IPv4: 32-bit 0000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 000000000000 ^L IPv4: 32-bit 00000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000 ^L IPv4: 32-bit 000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000 ^L IPv4: 32-bit 0000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 000000000000000000000000 ^L IPv4: 32-bit 00000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000 ^L IPv4: 32-bit 000000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000 ^L IPv4: 32-bit 0000000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000 ^L IPv4: 32-bit 00000000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000 ^L IPv4: 32-bit 000000000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000 ^L IPv4: 32-bit 0000000000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 00000000000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000 ^L IPv4: 32-bit 000000000000000000000000000000000 IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000 ^LP IPv4: 32-bit 000000000000000000000000000000000 IPv6写成二进位是IPv4长度的4倍，可以表示的位址数量有2的96次方倍!! IPv6: 128-bit 0000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000 ^LG:start: ^L:ipv6:P 8组16进位数字，每组4位数(16-bit)，共128-bit，a,b,c,d,e,f以小写表示 2001:0db8:0a0b:12f0:0000:0000:0000:0001 ^LP 去除每组数字开头的0 2001:0db8:0a0b:12f0:0000:0000:0000:0001 ^L0.5 去除每组数字开头的0 2001:db8:a0b:12f0:000:000:000:001 ^L 去除每组数字开头的0 2001:db8:a0b:12f0:00:00:00:01 ^LP 去除每组数字开头的0 2001:db8:a0b:12f0:0:0:0:1 ^LP 将连续出现最多组0的部分用::取代 2001:db8:a0b:12f0:0:0:0:1 ^L0.5 将连续出现最多组0的部分用::取代 2001:db8:a0b:12f0:0:0:1 ^L 将连续出现最多组0的部分用::取代 2001:db8:a0b:12f0:0:1 ^LP 将连续出现最多组0的部分用::取代 2001:db8:a0b:12f0::1 ^LP 完成! 2001:db8:a0b:12f0::1 ^LG:start: ^L:ipv4:P IPv4 位址 192.0.2.128 ^LP 加上前缀 192.0.2.128 ^L0.3 加上前缀 :192.0.2.128 ^L 加上前缀 f:192.0.2.128 ^L 加上前缀 ff:192.0.2.128 ^L 加上前缀 fff:192.0.2.128 ^L 加上前缀 ffff:192.0.2.128 ^L 加上前缀 :ffff:192.0.2.128 ^L 加上前缀 ::ffff:192.0.2.128 ^LP 完成 IPv4-mapped IPv6 addresses ::ffff:192.0.2.128 ^LG:start: --

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