H3C IPv6 over IPv4隧道实验

网络拓扑

• R2-R3-R4通过OSPF协议互联
• R1 / R5 IPv6网络被IPv4网络隔断 使用6to4隧道技术实现IPv6互通互联
• R2 / R4 作为隧道端点 配置Tun0接口

关键配置

R2 隧道端配置

# 第一步 配置隧道接口
interface Tunnel0 mode ipv6-ipv4
 source GigabitEthernet0/1
 destination 100.34.0.2
 ipv6 address auto link-local

# 第二步 配置默认路由
 ipv6 route-static :: 0 Tunnel0

R4 隧道端配置

# 配置与R2类似
interface Tunnel0 mode ipv6-ipv4
 source GigabitEthernet0/0
 destination 100.23.0.1
 ipv6 address auto link-local
#
 ipv6 route-static :: 0 Tunnel0

R1配置

#
interface GigabitEthernet0/0
 ipv6 address 2001::1/64

# 注意下一跳地址为链路本地地址
 ipv6 route-static :: 0 GigabitEthernet0/0 FE80::7225:44FF:FEB8:205

R5配置

#
interface GigabitEthernet0/1
 ipv6 address 2002::2/64

# 应对IPv6地址固定的情况下 可以配置公网IPv6
 ipv6 route-static :: 0 2002::1

配置验证

R1-R5互访

[R1]ping ipv6 2002::2
Ping6(56 data bytes) 2001::1 --> 2002::2, press CTRL+C to break
56 bytes from 2002::2, icmp_seq=0 hlim=62 time=2.691 ms
56 bytes from 2002::2, icmp_seq=1 hlim=62 time=1.654 ms
56 bytes from 2002::2, icmp_seq=2 hlim=62 time=2.004 ms
56 bytes from 2002::2, icmp_seq=3 hlim=62 time=1.580 ms
56 bytes from 2002::2, icmp_seq=4 hlim=62 time=1.704 ms

--- Ping6 statistics for 2002::2 ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/std-dev = 1.580/1.927/2.691/0.408 ms
[R1]%Mar 20 20:23:47:049 2026 R1 PING/6/PING_STATISTICS: Ping6 statistics for 2002::2: 5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss, round-trip min/avg/max/std-dev = 1.580/1.927/2.691/0.408 ms.

[R1]

查看IPV6邻居

[R1]dis ipv6 neighbors all
Type: S-Static    D-Dynamic    O-Openflow     R-Rule    IS-Invalid static
IPv6 address              MAC address    VID  Interface           State T  Aging
2001::2                   7025-44b8-0205 --   GE0/0               STALE D  11   
FE80::7225:44FF:FEB8:205  7025-44b8-0205 --   GE0/0               STALE D  11   
[R1]

抓包信息