第13章 IPV6

13.1 ICMPv6及Path-MTU

图片[1]-第13章 IPV6-大赛人网
图13-1 IPV6和OSPFv3基本配置网络拓扑

1.R1配置IPV6地址

[R1]ipv6
[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ipv6 enable 
[R1-GigabitEthernet0/0/0]ipv6 address 2001:12::1 64

2.R2配置IPV6地址

[R2]ipv6
[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]ipv6 enable 
[R2-GigabitEthernet0/0/0]ipv6 address 2001:12::2 64
[R2]interface GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]ipv6 enable 
[R2-GigabitEthernet0/0/1]ipv6 address 2001:23::2 64

3.R3配置IPV6地址

[R3]ipv6 
[R3]interface GigabitEthernet 0/0/1
[R3-GigabitEthernet0/0/1]ipv6 enable 
[R3-GigabitEthernet0/0/1]ipv6 address 2001:23::3 64

4.R1配置OSPFv3

[R1]ospfv3 
[R1-ospfv3-1]router-id 1.1.1.1
[R1-ospfv3-1]quit
[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ospfv3 1 area 0

5.R2配置OSPFv3

[R2]ospfv3 
[R2-ospfv3-1]router-id 2.2.2.2
[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]ospfv3 1 area 0
[R2]interface GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]ospfv3 1 area 1

6.R3配置OSPFv3

[R3]ospfv3
[R3-ospfv3-1]router-id 3.3.3.3
[R3]interface GigabitEthernet 0/0/1
[R3-GigabitEthernet0/0/1]ospfv3 1 area 1

7.查看路由表

<R1>display ipv6 routing-table protocol ospfv3 
Public Routing Table : OSPFv3
Summary Count : 2

OSPFv3 Routing Table's Status : < Active >
Summary Count : 1 

 Destination  : 2001:23::                       PrefixLength : 64
 NextHop      : FE80::2E0:FCFF:FECD:20BC        Preference   : 10
 Cost         : 2                               Protocol     : OSPFv3
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : GigabitEthernet0/0/0            Flags        : D

OSPFv3 Routing Table's Status : < Inactive >
Summary Count : 1

 Destination  : 2001:12::                       PrefixLength : 64
 NextHop      : ::                              Preference   : 10
 Cost         : 1                               Protocol     : OSPFv3
 RelayNextHop : ::                              TunnelID     : 0x0
 Interface    : GigabitEthernet0/0/0            Flags        :

8.连通性测试

 <R1>ping ipv6 2001:23::3                      
  PING 2001:23::3 : 56  data bytes, press CTRL_C to break
    Reply from 2001:23::3 
    bytes=56 Sequence=1 hop limit=63  time = 30 ms

9.查看ICMPv6报文信息和回显应答报文

图片[2]-第13章 IPV6-大赛人网
图13-2 ICMPv6报文信息
图片[3]-第13章 IPV6-大赛人网
图13-3 ICMPv6回显应答报文

10.查看OSPFv3报文

图片[4]-第13章 IPV6-大赛人网
图13-4 OSPFv3报文

 11.修改R1的G0/0/0口的MTU值为1400(ping包不分片情况下数据单元长度为1452字节)

<R1>ping ipv6 -s 1452 2001:23::3
  PING 2001:23::3 : 1452  data bytes, press CTRL_C to break
    Reply from 2001:23::3 
    bytes=1452 Sequence=1 hop limit=63  time = 30 ms

[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ospfv3 mtu-ignore
[R1-GigabitEthernet0/0/0]ipv6 mtu 1400
[R1-GigabitEthernet0/0/0]ping ipv6 -s 1452 2001:23::2
  PING 2001:23::2 : 1452  data bytes, press CTRL_C to break
    Reply from 2001:23::2 
    bytes=1452 Sequence=1 hop limit=64  time = 30 ms
图片[5]-第13章 IPV6-大赛人网
图13-5 数据分片发送

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