GRE隧道技術(shù)介紹

1、 6to4隧道的配置 interface ethernet 0 ip address 128.1.2.3 255.255.255.0 interface tunnel 0 ipv6 address 2002:8001:0203: 48 source 128.1.2.3 tunnel-protocol ipv6-ipv4 6to4 ipv6 route-static 2002: 16 tunnel 0 interface ethernet 0 ip address 9.1.2.3 255.255.255.0 interface tunnel 0 ipv6 address 2002:0901:02

2、03 48 source 9.1.2.3 tunnel-protocol ipv6-ipv4 6to4 ipv6 route-static 2002: 16 tunnel 0 純IPv6網(wǎng)絡(luò) IPv4網(wǎng)絡(luò) 6to4網(wǎng)絡(luò) IPv6主機(jī) 6to4邊緣 128.1.2.3 隧道 2002:8001:0203:/48 IPv6報(bào)頭+數(shù)據(jù) IPv4報(bào)頭 IPv6報(bào)頭+數(shù)據(jù) 6to4中繼 9.2.2.3 3FFE:ABCD:/48 9.1.2.3 6to4邊緣 6to4網(wǎng)絡(luò) IPv6主機(jī) 2002:0901:0203:/48 IPv6報(bào)頭+數(shù)據(jù) 源：128.1.2.3 目的：9.1.2.3 ISATAP隧

3、道技術(shù) ISATAP隧道技術(shù) 連接IPv4網(wǎng)點(diǎn)內(nèi)部的IPv6主機(jī)和 IPv4/IPv6雙棧路由器 將IPv4網(wǎng)點(diǎn)作為一個(gè)NBMA鏈路，在IPv4 報(bào)文中封裝IPv6報(bào)文 IPv4地址：20.1.1.1 IPv6地址：1:5EFE:20.1.1.1 優(yōu)點(diǎn) IPv4地址：20.1.2.1 IPv6地址：1:5EFE:20.1.2.1 IPv4網(wǎng)點(diǎn)內(nèi)部的IPv6主機(jī)可自動(dòng)獲得IPv6 IPv4網(wǎng)絡(luò) IPv6網(wǎng)絡(luò) 前綴 v4/v6主機(jī) ND協(xié)議可跨網(wǎng)段進(jìn)行 雙棧 IPv6主機(jī) ISATAP隧道的配置 interface ethernet 0 ip address 20.1.2.1 255.255.255.0 interface tunnel 0 ipv6 address 1:5EFE:20.1.2.1 64 source 20.1.2.1 undo ipv6 nd ra halt tunnel-protocol ipv6-ipv4 isatap IPv4地址：20.1.1.1 IPv6地址：1:5EFE:20.1.1.1 IPv4地址：20.1.2.