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via ::, Null0
我们可以看到有一条 S 的路由，里面有两个下一跳地址，也就说我们能通过这两个地 址到达目标，实现了负载均衡的目的 R2 的路由表： rack02# sh ipv route
IPv6 Routing Table - 9 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP U - Per-user Static route
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 S ::/0 [1/0]
via 2001:0:0:2::1
via 2003:0:0:1::1, Ethernet0 C 2001:0:0:2::/64 [0/0] via ::, Serial1
L 2001:0:0:2::2/128 [0/0] via ::, Serial1
C 2002:0:0:3::/64 [0/0] via ::, Loopback0 L 2002:0:0:3::2/128 [0/0] via ::, Loopback0 C 2003:0:0:1::/64 [0/0] via ::, Ethernet0
L 2003:0:0:1::2/128 [0/0] via ::, Ethernet0 L FE80::/10 [0/0] via ::, Null0 L FF00::/8 [0/0] via ::, Null0
有两条默认静态路由。 来测试一下连通性：
rack01#ping ipv6 2002:0:0:3::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2002:0:0:3::2, timeout is 2 seconds: !!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/31/32 ms
R2 上
rack02#ping ipv6 2000:0:0:1::1
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Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2000:0:0:1::1, timeout is 2 seconds: !!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/32 ms OK！成功了
实验三：RIP 的简单实验
实验目的：
IPV4的最简单的动态路由选择协议是RIP， IPV6也是一样的，它的名字叫RIPng。 他所使用的 UDP 端口是 521，这和 IPV4 不同，而且它起用 RIP的方式也和 IPV4 不一样，我们可以在下面的实验中看到。
R1 R2
实验拓扑： R2 S1
实验内容：
路由器的基本配置：
R1 上：
interface Loopback0 no ip address
ipv6 address 2000::1/64
ipv6 rip pliskin enable 这里定义了一个进程的名字，在启用 RIPng时，所有的
接口都要打这条命令 !
interface Serial1 no ip address
ipv6 address 2001::1/64 ipv6 rip pliskin enable clockrate 64000 !
ipv6 router rip pliskin
（一定要打这条命令，因为默认情况下 IPV6 路由选择功能是关闭的） ！
ipv6 router rip pliskin 这个命令是系统自动给我们创建的 R2 上：
interface Loopback0 no ip address
ipv6 address 2002::1/64 ipv6 rip pliskin enable Page 8 of 39
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!
interface Serial1 no ip address
ipv6 address 2001::2/64 ipv6 rip pliskin !
ipv6 unicast-routing !
ipv6 router rip pliskin
R1 上的路由表：用 sh ipv6 route 打开 rack01#sh ipv route
IPv6 Routing Table - 7 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP U - Per-user Static route
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 C 2000::/64 [0/0] via ::, Loopback0 L 2000::1/128 [0/0] via ::, Loopback0 C 2001::/64 [0/0] via ::, Serial1 L 2001::1/128 [0/0] via ::, Serial1 R 2002::/64 [120/2]
via FE80::200:CFF:FE42:5E93, Serial1 L FE80::/10 [0/0] via ::, Null0 L FF00::/8 [0/0] via ::, Null0
我们可以看到有一条 R的路由，他的管理距离是 120，下一条是 R2的 S1 口，并且地址是地区本地单播地址。
R2 的路由表： rack02#sh ipv route
IPv6 Routing Table - 7 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP U - Per-user Static route
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
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ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 R 2000::/64 [120/2]
via FE80::200:CFF:FE09:A0B8, Serial1 C 2001::/64 [0/0] via ::, Serial1 L 2001::2/128 [0/0] via ::, Serial1 C 2002::/64 [0/0] via ::, Loopback0 L 2002::1/128 [0/0] via ::, Loopback0 L FE80::/10 [0/0] via ::, Null0 L FF00::/8 [0/0] via ::, Null0
来测试一下连通性： rack01#ping ipv6 2002::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2002::1, timeout is 2 seconds: !!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/31/32 ms
R2 上
rack02#ping ipv6 2000::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2000::1, timeout is 2 seconds: !!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/32 ms OK！成功了
我们来看一些 RIPng 的变化 在 R1 上： rack01#sh ipv rip
RIP process \ Administrative distance is 120. Maximum paths is 16 Updates every 30 seconds, expire after 180
Holddown lasts 0 seconds, garbage collect after 120 Split horizon is on; poison reverse is off Default routes are not generated
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