配置IPv6基础功能示例

配置IPv6基础功能示例

组网需求

如图1所示，RouterA和RouterB分别通过GE1/0/0相连。要求RouterA和RouterB形成邻居关系，RouterB能通过邻居发现功能获得IPv6地址。

图1 配置IPv6基础功能组网图

配置思路

配置IPv6基础功能思路如下： 1. 使能RouterA的IPv6转发能力并配置IPv6地址，使路由器具有对IPv6报文的

转发能力。 2. 打开RouterA的RA报文发送开关。RouterB的GE1/0/0接口在接收到RouterA

发送的RA报文后可根据RA报文中携带的路由前缀等信息进行地址自动配置。

操作步骤

1.

配置RouterA

# 配置RouterA的接口GE1/0/0的IPv6地址。

system-view [Huawei] sysname RouterA [RouterA] ipv6

[RouterA] interface gigabitethernet 1/0/0 [RouterA-GigabitEthernet1/0/0] ipv6 enable

[RouterA-GigabitEthernet1/0/0] ipv6 address fc01::1/64 [RouterA-GigabitEthernet1/0/0] quit

# 配置RouterA的邻居发现功能。

[RouterA] interface gigabitethernet 1/0/0

[RouterA-GigabitEthernet1/0/0] undo ipv6 nd ra halt [RouterA-GigabitEthernet1/0/0] quit [RouterA] quit

2. 配置RouterB

# 配置RouterB的接口GE1/0/0使能无状态自动生成IPv6地址功能。

system-view [Huawei] sysname RouterB [RouterB] ipv6

[RouterB] interface gigabitethernet 1/0/0 [RouterB-GigabitEthernet1/0/0] ipv6 enable

[RouterB-GigabitEthernet1/0/0] ipv6 address auto link-local

[RouterB-GigabitEthernet1/0/0] ipv6 address auto global local-identifier [RouterB-GigabitEthernet1/0/0] quit [RouterB] quit

3. 验证配置结果

如果配置成功，可以查看配置的全球单播地址，以及接口状态为Up，IPv6协议状态为Up，并可以查看接口的邻居情况。 # 查看RouterA的接口信息。

display ipv6 interface gigabitethernet 1/0/0

GigabitEthernet1/0/0 current state : UP IPv6 protocol current state : UP IPv6 is enabled, link-local address is FE80::A19:A6FF:FECD:A897 Global unicast address(es): 3000::1, subnet is 3000::/64 Joined group address(es): FF02::1:2 FF02::1:FF00:1 FF02::2 FF02::1 FF02::1:FFCD:A897 MTU is 1500 bytes ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 30000 milliseconds ND retransmit interval is 1000 milliseconds ND advertised reachable time is 0 milliseconds ND advertised retransmit interval is 0 milliseconds ND router advertisement max interval 600 seconds, min interval 200 seconds ND router advertisements live for 1800 seconds ND router advertisements hop-limit 64 ND default router preference medium Hosts use stateless autoconfig for addresses

# 查看RouterB的接口信息。

display ipv6 interface gigabitethernet 1/0/0 GigabitEthernet1/0/0 current state : UP IPv6 protocol current state : UP

IPv6 is enabled, link-local address is FE80::2D6F:0:7AF3:1 Global unicast address(es): fc01::15B:E0EA:3524:E791

subnet is fc01::/64 [SLAAC 2012-07-19 17:30:55 2592000S]

Joined group address(es): FF02::1:FF00:2 FF02::1:FFF3:1 FF02::2 FF02::1

MTU is 1500 bytes

ND DAD is enabled, number of DAD attempts: 1 ND reachable time is 30000 milliseconds ND retransmit interval is 1000 milliseconds

# 查看RouterA的接口GE1/0/0的邻居信息。

display ipv6 neighbors gigabitethernet 1/0/0 --------------------------------------------------------- IPv6 Address : fc01::15B:E0EA:3524:E791

Link-layer : 00e0-fc89-fe6e State : STALE Interface : GigabitEthernet1/0/0 Age : 7 VLAN : - CEVLAN: -

VPN name : Is Router : TRUE Secure FLAG : UN-SECURE

--------------------------------------------------------- Total: 1 Dynamic: 1 Static: 0

配置文件

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

RouterA配置文件

#

sysname RouterA # ipv6 #

interface GigabitEthernet1/0/0 ipv6 enable

ipv6 address fc01::1/64 undo ipv6 nd ra halt #

return

RouterB配置文件

#

sysname RouterB # ipv6 #

interface GigabitEthernet1/0/0 ipv6 enable

ipv6 address auto link-local

? ?

ipv6 address auto global local-identifier #

return

配置DHCPv6服务器示例

组网需求

如果大量的企业内部用户IPv6地址都是手动配置，那么网络管理员工作量大，而且可管理性很差。管理员希望实现公司内部用户IPv6地址和网络配置参数的自动获取，便于统一管理，实现IPv6的层次布局。

图1 DHCPv6服务器组网图

配置思路

DHCPv6服务器的配置思路如下： 1. 2.

使能接口的IPv6功能，实现设备之间的IPv6通信。

使能DHCPv6服务器功能，实现设备通过DHCPv6方式分配IPv6地址。

操作步骤

1.

2. 3.

启动DHCP服务

system-view [Huawei] sysname Router A

[Router A] dhcp enable

4.

5. 6. 7. 8.

配置DHCPv6服务器

[Huawei] dhcpv6 pool pool1

[Router A-dhcpv6-pool-pool1] address prefix fc00:3::/64 [Router A-dhcpv6-pool-pool1] dns-server fc00:4::1 [Router A-dhcpv6-pool-pool1] excluded-address fc00:3::1

[Router A-dhcpv6-pool-pool1] quit

9.

10. 11. 12.

配置接口的IPv6功能

[Router A] ipv6

[Router A] interface gigabitethernet 0/0/1 [Router A-GigabitEthernet0/0/4] ipv6 enable

[Router A-GigabitEthernet0/0/4] ipv6 address fc00:3::1/64

13. 接口使能DHCPv6服务器功能

# 使能GE0/0/1接口的DHCPv6服务器功能。

[Router A-GigabitEthernet0/0/4] dhcpv6 server pool1

14. 验证配置结果

# 在路由器上使用display dhcpv6 pool 命令用来查看DHCPv6地址池信息。

display dhcpv6 pool

Address prefix: FC00:3::/64 Lifetime valid 172800 seconds, preferred 86400 seconds 0 in use, 0 conflicts Excluded-address FC00:3::1 1 excluded addresses

Information refresh time: 86400 DNS server address: FC00:4::1 Conflict-address expire-time: 172800 Active normal clients: 0

在路由器上使用display dhcpv6 server 命令用来查看DHCPv6服务器信息。

display dhcpv6 server

Interface DHCPv6 pool GigabitEthernet0/0/1 pool1

配置文件

Router A的配置文件

#

sysname Router A

# ipv6 # dhcp enable

#

dhcpv6 pool pool1 address prefix FC00:3::/64

excluded-address FC00:3::1 dns-server FC00:4::1 #

interface GigabitEthernet0/0/1 ipv6 enable ipv6 address FC00:3::1/64 dhcpv6 server pool1 # return