IPV6相关命令

如果使用路由器模拟PC使用EUI064获取IPV6地址，不需要开启IPV6 unicast 功能

关于IPV6接口下命令解释：

ipv6 unicast /思科设备开启IPv6的路由功能

ipv6 enable /在接口下启用IPv6，自动生成一个link-local地址

IPv6 MTU /修改IPV6的MTU值

Ipv6 address 2001::/64 指定一个IP地址，配置后会生成一个link-local地址。

ipv6 nd router-preference High /修改RA报文中的默认路由器的优先级为高，默认为中等。

RA的优先级有三个级别High和Medium和Low。

ipv6 nd ra suppress 抑制该接口发送RA报文

ipv6 address FE80::AABB:CC:10:10 link-local 手工配置Link Local地址

ipv6 address autoconfig 通过EUI-64自动生成一条IPV6地址

ipv6 address 2001:20:20:20::/64 eui-64 通过Eui-64自动生接口地址

接口IPV6信息查看：

Router#show ipv6 int e0/0

Ethernet0/0 is up, line protocol is up

IPv6 is enabled, link-local address is FE80::A8BB:CCFF:FE00:1000

No Virtual link-local address(es):

Global unicast address(es):

2001:10:10:10::254, subnet is 2001:10:10:10::/64

Joined group address(es):

FF02::1 /表示本链路的所有节点

FF02::2 /表示本链路的所有路由器

FF02::1:FF00:254 /与单IPV6地址对应的请求节点组播地址

FF02::1:FF00:1000 /与链路本地地址对应的请求节点组播地址

MTU is 1500 bytes

ICMP error messages limited to one every 100 milliseconds

ICMP redirects are enabled /接口中已经开启了IPV6的地址重定向功能

ICMP unreachables are sent

ND DAD is enabled, number of DAD attempts: 1

ND reachable time is 30000 milliseconds (using 30000)

ND advertised reachable time is 0 (unspecified)

ND advertised retransmit interval is 0 (unspecified)

ND router advertisements are sent every 200 seconds

ND router advertisements live for 1800 seconds

ND advertised default router preference is Medium

Hosts use stateless autoconfig for addresses.