在Cisco路由器上配置IPv6 Over IPv4 手工隧道
下面我们将以Cisco路由器为例来演示如何在Cisco路由器上配置IPv6 Over IPv4 手工隧道,本次实验采用三台Router,router1.ipv6s.com、router2.ipv6s.com、router3.ipv6s.com均通过IPv4网络互联,运行OSPF协议模拟IPv4 Internet。router1.ipv6s.com、router3.ipv6s.com这二台路由器均为双栈路由器。router1.ipv6s.com、router3.ipv6s.com通过router2.ipv6s.com建立6Over4的手工隧道,连接二边的IPv6网络。实验中我们未在二边的IPv6网络放置PC机,因此各在二台设备上建立一个loopback接口,与隧道一起运行OSPFv3路由协议,验证将二边的IPv6网络通过6Over4 手工隧道进行互联互通。具体的组网图如下所示:
实验组网图与IPv4、IPv6地址分配
各设备的接口IPv4、IPv6地址地址与接口编号请对照下图查看:
配置思路与流程说明:
- 在每台设备上配置IPv4地址并通过ospf路由协议将IPv4网络连通
- 在第一与第三台路由器上开启IPV6功能:ipv6 unicast-routing
- 在每台设备上创建OSPFv3进程与loopback接口地址并使能OSPFv3路由协议
- 建立隧道,并配置隧道模式为6over4手工隧道:tunnel mode ipv6ip
- 配置6over4手工隧道的源IPv4地址与隧道对端的目的IPv4地址tunnel source tunnel destination
- 配置隧道的IPv6地址并使能OSPFv3路由协议,将二边的IPv6网络通过隧道连通
router1.ipv6s.com的配置步骤:
步骤一:配置IPv4网络互通
router1.ipv6s.com con0 is now available
Press RETURN to get started.
router1.ipv6s.com>
enable
router1.ipv6s.com#
config t
Enter configuration commands, one per line. End with CNTL/Z.
router1.ipv6s.com(config)#
interface gigabitEthernet 0/0
router1.ipv6s.com(config-if)#
ip address 1.2.0.1 255.255.255.0
router1.ipv6s.com(config-if)#
no shutdown
router1.ipv6s.com(config-if)#
exit
router1.ipv6s.com(config)#
*Sep 5 11:43:19.907: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up
*Sep 5 11:43:20.907: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
router1.ipv6s.com(config)#
router ospf 100
router1.ipv6s.com(config-router)#
router-id 1.1.1.1
router1.ipv6s.com(config-router)#
network 1.2.0.0 0.0.0.255 area 0
router1.ipv6s.com(config-router)#
exit
router1.ipv6s.com(config)#步骤二:配置IPv6隧道与IPv6网络互通
router1.ipv6s.com(config)#
router1.ipv6s.com(config)#
ipv6 unicast-routing
router1.ipv6s.com(config)#
router1.ipv6s.com(config)#
ipv6 router ospf 100
router1.ipv6s.com(config-rtr)#
router-id 1.1.1.1
router1.ipv6s.com(config-rtr)#
exit
router1.ipv6s.com(config)#
router1.ipv6s.com(config)#
interface loopback 1
router1.ipv6s.com(config-if)#
*Sep 5 11:50:24.455: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
router1.ipv6s.com(config-if)#
ipv6 enable
router1.ipv6s.com(config-if)#
ipv6 address 1::1/128
router1.ipv6s.com(config-if)#
ipv6 ospf 100 area 0
router1.ipv6s.com(config-if)#
exit
router1.ipv6s.com(config)#
router1.ipv6s.com(config)#
interface tunnel 0
router1.ipv6s.com(config-if)#
tunnel mode ipv6ip
router1.ipv6s.com(config-if)#
tunnel source 1.2.0.1
router1.ipv6s.com(config-if)#
tunnel destination 2.3.0.2
router1.ipv6s.com(config-if)#
*Sep 5 11:58:26.307: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel0, changed state to up
router1.ipv6s.com(config-if)#
ipv6 enable
router1.ipv6s.com(config-if)#
ipv6 address 1003::1/64
router1.ipv6s.com(config-if)#
ipv6 ospf 100 area 0
router1.ipv6s.com(config-if)#
exit
router1.ipv6s.com(config)#
exit
router1.ipv6s.com#
router2.ipv6s.com的配置步骤:
router2.ipv6s.com为纯IPv4网络,因此只需配置IPv4网络互通即可
router2.ipv6s.com con0 is now available
Press RETURN to get started.
router2.ipv6s.com>
en
router2.ipv6s.com#
conf t
Enter configuration commands, one per line. End with CNTL/Z.
router2.ipv6s.com(config)#
interface gigabitEthernet 0/0
router2.ipv6s.com(config-if)#
ip address 1.2.0.2 255.255.255.0
router2.ipv6s.com(config-if)#
no shutdown
router2.ipv6s.com(config-if)#
exit
router2.ipv6s.com(config)#
*Sep 5 11:46:02.707: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up
*Sep 5 11:46:03.707: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
router2.ipv6s.com(config)#
router2.ipv6s.com(config)#
interface gigabitEthernet 1/0
router2.ipv6s.com(config-if)#
ip address 2.3.0.1 255.255.255.0
router2.ipv6s.com(config-if)#
no shutdown
router2.ipv6s.com(config-if)#
*Sep 5 11:46:32.599: %LINK-3-UPDOWN: Interface GigabitEthernet1/0, changed state to up
*Sep 5 11:46:33.599: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0, changed state to up
router2.ipv6s.com(config-if)#
exit
router2.ipv6s.com(config)#
router ospf 100
router2.ipv6s.com(config-router)#
router-id 2.2.2.2
router2.ipv6s.com(config-router)#
router2.ipv6s.com(config-router)#
network 1.2.0.0 0.0.0.255 area 0
router2.ipv6s.com(config-router)#
*Sep 5 11:47:42.675: %OSPF-5-ADJCHG: Process 100, Nbr 1.1.1.1 on GigabitEthernet0/0 from LOADING to FULL, Loading Done
router2.ipv6s.com(config-router)#
router2.ipv6s.com(config-router)#
network 2.3.0.0 0.0.0.255 area 0
router2.ipv6s.com(config-router)#
router3.ipv6s.com的配置步骤:
步骤一:配置IPv4网络互通
router3.ipv6s.com con0 is now available
Press RETURN to get started.
router3.ipv6s.com>
en
router3.ipv6s.com#
conf t
Enter configuration commands, one per line. End with CNTL/Z.
router3.ipv6s.com(config)#
interface gigabitEthernet 0/0
router3.ipv6s.com(config-if)#
ip address 2.3.0.2 255.255.255.0
router3.ipv6s.com(config-if)#
no shutdown
router3.ipv6s.com(config-if)#
*Sep 5 11:47:40.159: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up
*Sep 5 11:47:41.159: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
router3.ipv6s.com(config-if)#
exit
router3.ipv6s.com(config)#
router ospf 100
router3.ipv6s.com(config-router)#
router-id 3.3.3.3
router3.ipv6s.com(config-router)#
network 2.3.0.0 0.0.0.255 area 0
router3.ipv6s.com(config-router)#
*Sep 5 11:48:09.379: %OSPF-5-ADJCHG: Process 100, Nbr 2.2.2.2 on GigabitEthernet0/0 from LOADING to FULL, Loading Done
router3.ipv6s.com(config-router)#
exit步骤二:配置IPv6隧道与IPv6网络互通
router3.ipv6s.com(config)#
router3.ipv6s.com(config)#
ipv6 unicast-routing
router3.ipv6s.com(config)#
router3.ipv6s.com(config)#
ipv6 router ospf 100
router3.ipv6s.com(config-rtr)#
router-id 3.3.3.3
router3.ipv6s.com(config-rtr)#
exit
router3.ipv6s.com(config)#
interface loopback 1
router3.ipv6s.com(config-if)#
*Sep 5 11:58:27.947: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up
router3.ipv6s.com(config-if)#
ipv6 enable
router3.ipv6s.com(config-if)#
ipv6 address 3::3/128
router3.ipv6s.com(config-if)#
ipv6 ospf 100 area 0
router3.ipv6s.com(config-if)#
exit
router3.ipv6s.com(config)#
interface tunnel 0
router3.ipv6s.com(config-if)#
tunnel mode ipv6ip
router3.ipv6s.com(config-if)#
tunnel source 2.3.0.2
router3.ipv6s.com(config-if)#
tunnel destination 1.2.0.1
router3.ipv6s.com(config-if)#
*Sep 5 11:59:16.051: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel0, changed state to up
router3.ipv6s.com(config-if)#
ipv6 enable
router3.ipv6s.com(config-if)#
ipv6 address 1003::2/64
router3.ipv6s.com(config-if)#
ipv6 ospf 100 area 0
router3.ipv6s.com(config-if)#
*Sep 5 11:59:39.431: %OSPFv3-5-ADJCHG: Process 100, Nbr 1.1.1.1 on Tunnel0 from LOADING to FULL, Loading Done
router3.ipv6s.com(config-if)#
exit
router3.ipv6s.com(config)#
exit
router3.ipv6s.com#
查看各设备OSPF与OSPFv3邻居、IPv6路由表
所有设备之间的IPv4、IPv6路由协议已按照组网图配置完毕,我们可以在router1.ipv6s.com上查看OSPF、OSPFv3的邻居
并查看IPv6路由表,隧道接口的IPv6地址信息。
并ping router3.ipv6s.com上面的loopback接口ipv6地址,均能正常通讯
router1.ipv6s.com#
*Sep 5 12:00:36.607: %OSPFv3-5-ADJCHG: Process 100, Nbr 3.3.3.3 on Tunnel0 from LOADING to FULL, Loading Done
router1.ipv6s.com#
router1.ipv6s.com#
show ip ospf neighborNeighbor ID Pri State Dead Time Address Interface
2.2.2.2 1 FULL/BDR 00:00:36 1.2.0.2 GigabitEthernet0/0
router1.ipv6s.com#
show ipv6 ospf neighborNeighbor ID Pri State Dead Time Interface ID Interface
3.3.3.3 0 FULL/ – 00:00:33 7 Tunnel0
router1.ipv6s.com#
show ipv6 route
IPv6 Routing Table – default – 5 entries
Codes: C – Connected, L – Local, S – Static, U – Per-user Static route
B – BGP, M – MIPv6, R – RIP, I1 – ISIS L1
I2 – ISIS L2, IA – ISIS interarea, IS – ISIS summary, D – EIGRP
EX – EIGRP external, ND – Neighbor Discovery
O – OSPF Intra, OI – OSPF Inter, OE1 – OSPF ext 1, OE2 – OSPF ext 2
ON1 – OSPF NSSA ext 1, ON2 – OSPF NSSA ext 2
LC 1::1/128 [0/0]
via Loopback1, receive
O 3::3/128 [110/1000]
via FE80::203:2, Tunnel0
C 1003::/64 [0/0]
via Tunnel0, directly connected
L 1003::1/128 [0/0]
via Tunnel0, receive
L FF00::/8 [0/0]
via Null0, receive
router1.ipv6s.com#
router1.ipv6s.com#
show ipv6 interface tunnel 0
Tunnel0 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::102:1
No Virtual link-local address(es):
Global unicast address(es):
1003::1, subnet is 1003::/64
Joined group address(es):
FF02::1
FF02::2
FF02::5
FF02::1:FF00:1
FF02::1:FF02:1
MTU is 1480 bytes
ICMP error messages limited to one every 100 milliseconds
ICMP redirects are enabled
ICMP unreachables are sent
ND DAD is enabled, number of DAD attempts: 1
ND reachable time is 30000 milliseconds (using 30000)
Hosts use stateless autoconfig for addresses.
router1.ipv6s.com#
router1.ipv6s.com#
traceroute ipv6 3::3Type escape sequence to abort.
Tracing the route to 3::31 1003::2 148 msec 144 msec 188 msec
router1.ipv6s.com#
router1.ipv6s.com#
ping ipv6 1003::2Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1003::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 140/176/208 ms
router1.ipv6s.com#
ping ipv6 3::3Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 3::3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 160/177/196 ms
router1.ipv6s.com#
router1.ipv6s.com#
查看router2.ipv6s.com上面的OSPF邻居:
router2.ipv6s.com#
show ip ospf neighborNeighbor ID Pri State Dead Time Address Interface
3.3.3.3 1 FULL/BDR 00:00:31 2.3.0.2 GigabitEthernet1/0
1.1.1.1 1 FULL/DR 00:00:31 1.2.0.1 GigabitEthernet0/0
router2.ipv6s.com#
查看router3.ipv6s.com上面的的OSPF、OSPFv3、IPv6路由表、Tunnel接口IPv6地址信息:
router3.ipv6s.com#
show ip ospf neighborNeighbor ID Pri State Dead Time Address Interface
2.2.2.2 1 FULL/DR 00:00:30 2.3.0.1 GigabitEthernet0/0
router3.ipv6s.com#
show ipv6 ospf neighborNeighbor ID Pri State Dead Time Interface ID Interface
1.1.1.1 0 FULL/ – 00:00:30 7 Tunnel0
router3.ipv6s.com#
router3.ipv6s.com#
show ipv6 route
IPv6 Routing Table – default – 5 entries
Codes: C – Connected, L – Local, S – Static, U – Per-user Static route
B – BGP, M – MIPv6, R – RIP, I1 – ISIS L1
I2 – ISIS L2, IA – ISIS interarea, IS – ISIS summary, D – EIGRP
EX – EIGRP external, ND – Neighbor Discovery
O – OSPF Intra, OI – OSPF Inter, OE1 – OSPF ext 1, OE2 – OSPF ext 2
ON1 – OSPF NSSA ext 1, ON2 – OSPF NSSA ext 2
O 1::1/128 [110/1000]
via FE80::102:1, Tunnel0
LC 3::3/128 [0/0]
via Loopback1, receive
C 1003::/64 [0/0]
via Tunnel0, directly connected
L 1003::2/128 [0/0]
via Tunnel0, receive
L FF00::/8 [0/0]
via Null0, receive
router3.ipv6s.com#
ping ipv6 1::1Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 136/172/216 ms
router3.ipv6s.com#
show ipv6 interface tunnel 0
Tunnel0 is up, line protocol is up
IPv6 is enabled, link-local address is FE80::203:2
No Virtual link-local address(es):
Global unicast address(es):
1003::2, subnet is 1003::/64
Joined group address(es):
FF02::1
FF02::2
FF02::5
FF02::1:FF00:2
FF02::1:FF03:2
MTU is 1480 bytes
ICMP error messages limited to one every 100 milliseconds
ICMP redirects are enabled
ICMP unreachables are sent
ND DAD is enabled, number of DAD attempts: 1
ND reachable time is 30000 milliseconds (using 30000)
Hosts use stateless autoconfig for addresses.
router3.ipv6s.com#
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