配置IPv6 over IPv4

GRE隧道示例

組網(wǎng)需求

如圖1，兩個(gè)IPv6網(wǎng)絡(luò)分別通過RouterA和RouterC與IPv4網(wǎng)絡(luò)中的RouterB連接，客戶希望在RouterA和RouterC之間配置IPv6 over IPv4 GRE隧道，使兩個(gè)IPv6網(wǎng)絡(luò)可以互通。

圖1 配置IPv6 over IPv4 GRE隧道組網(wǎng)圖

配置思路

配置IPv6 over IPv4

GRE隧道的思路如下：

配置物理接口的IP地址，使設(shè)備可以和IPv4網(wǎng)絡(luò)通信。

在RouterA和RouterC上創(chuàng)建Tunnel接口，配置GRE隧道，指定Tunnel的源地址和目的地址，使報(bào)文封裝后可以通過路由轉(zhuǎn)發(fā)。注意Tunnel的源地址是發(fā)出報(bào)文的物理接口IP地址，目的地址是接收?qǐng)?bào)文的物理接口IP地址。

為使PC1和PC2之間的流量通過GRE隧道傳輸，RouterA和RouterC上配置靜態(tài)路由，以對(duì)端PC所在網(wǎng)段為目的地址，出接口為本端配置的Tunnel接口。

操作步驟

配置各物理接口的IP地址

# 配置RouterA。

<Huawei>system-view

[Huawei] sysname RouterA

[RouterA] interface  gigabitethernet 1/0/0

[RouterA-GigabitEthernet1/0/0]ip address 10.1.1.1 255.255.255.0

[RouterA-GigabitEthernet1/0/0]quit

[RouterA] ipv6

[RouterA] interface  gigabitethernet 2/0/0

[RouterA-GigabitEthernet2/0/0]ipv6 enable

[RouterA-GigabitEthernet2/0/0]ipv6 address fc01::1 64

[RouterA-GigabitEthernet2/0/0]quit

# 配置RouterB。

<Huawei>system-view

[Huawei] sysname  RouterB

[RouterB] interface  gigabitethernet 1/0/0

[RouterB-GigabitEthernet1/0/0] ip address 10.1.1.2 255.255.255.0

[RouterB-GigabitEthernet1/0/0]quit

[RouterB] interface  gigabitethernet 2/0/0

[RouterB-GigabitEthernet2/0/0]ip address 10.1.2.1 255.255.255.0

[RouterB-GigabitEthernet2/0/0]quit

# 配置RouterC。

<Huawei>system-view

[Huawei] sysname  RouterC

[RouterC] interface  gigabitethernet 1/0/0

[RouterC-GigabitEthernet1/0/0]ip address 10.1.2.2 255.255.255.0

[RouterC-GigabitEthernet1/0/0]quit

[RouterC] ipv6

[RouterC] interface  gigabitethernet 2/0/0

[RouterC-GigabitEthernet2/0/0]ipv6 enable

[RouterC-GigabitEthernet2/0/0]ipv6 address fc03::1 64

[RouterC-GigabitEthernet2/0/0]quit

配置IPV4靜態(tài)路由

# 配置RouterA。

[RouterA] ip  route-static 10.1.2.2 255.255.255.0 10.1.1.2

# 配置RouterC。

[RouterC] ip  route-static 10.1.1.1 255.255.255.0 10.1.2.1

配置Tunnel接口

# 配置RouterA。

[RouterA] interfacetunnel 0/0/1

[RouterA-Tunnel0/0/1]tunnel-protocol gre

[RouterA-Tunnel0/0/1]ipv6 enable

[RouterA-Tunnel0/0/1]ipv6 address fc02::1 64

[RouterA-Tunnel0/0/1]source 10.1.1.1

[RouterA-Tunnel0/0/1]destination 10.1.2.2

[RouterA-Tunnel0/0/1]quit

# 配置RouterC。

[RouterC] interface  tunnel 0/0/1

[RouterC-Tunnel0/0/1]tunnel-protocol gre

[RouterC-Tunnel0/0/1]ipv6 enable

[RouterC-Tunnel0/0/1]ipv6 address fc02::2 64

[RouterC-Tunnel0/0/1]source 10.1.2.2

[RouterC-Tunnel0/0/1]destination 10.1.1.1

[RouterC-Tunnel0/0/1]quit

配置Tunnel的靜態(tài)路由

# 配置RouterA。

[RouterA] ipv6   route-static fc03::1 64 tunnel 0/0/1

# 配置RouterC。

[RouterC] ipv6   route-static fc01::1 64 tunnel 0/0/1

檢查配置結(jié)果

# 在RouterC上Ping

RouterA的IPv4地址，可收到返回的報(bào)文。

[RouterC] ping   10.1.1.1

 PING 10.1.1.1: 56  data bytes, press CTRL_C to break

   Reply from 10.1.1.1: bytes=56 Sequence=1  ttl=255 time=84 ms

   Reply from 10.1.1.1: bytes=56 Sequence=2   ttl=255 time=27 ms

   Reply from 10.1.1.1: bytes=56 Sequence=3   ttl=255 time=25 ms

   Reply from 10.1.1.1: bytes=56 Sequence=4   ttl=255 time=3 ms

   Reply from 10.1.1.1: bytes=56 Sequence=5   ttl=255 time=24 ms

 --- 10.1.1.1 ping statistics ---

   5 packet(s) transmitted

   5 packet(s) received

   0.00% packet loss

   round-trip min/avg/max = 3/32/84 ms

# 在RouterC上Ping

RouterA的IPv6地址，可收到返回的報(bào)文。

[RouterC] ping ipv6  fc01::1

 PING fc01::1 : 56  data bytes, press CTRL_C to break

   Reply from fc01::1

   bytes=56 Sequence=1 hop limit=64  time = 28 ms

   Reply from fc01::1

   bytes=56 Sequence=2 hop limit=64  time = 27 ms

   Reply from fc01::1

   bytes=56 Sequence=3 hop limit=64  time = 26 ms

   Reply from fc01::1

   bytes=56 Sequence=4 hop limit=64  time = 27 ms

   Reply from fc01::1

   bytes=56 Sequence=5 hop limit=64  time = 26 ms

 --- fc01::1 ping statistics ---

   5 packet(s) transmitted

   5 packet(s) received

   0.00% packet loss

round-trip

min/avg/max = 26/26/28 ms