CISCO IPv6学习笔记02
r2(config)#ipv6 prefix-list abc permit 3002:1:1:11::/64r2(config)#ipv6 router rip ccie
r2(config-rtr)#distribute-list prefix-list abc in f0/0
注：ipv6的 prefix-list同样支持ge , le等关键字来匹配范围。
（2）查看过滤后的路由表情况
r2#show ipv6 route rip
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
D - EIGRP, EX - EIGRP external
R 3002:1:1:11::/64
via FE80::C200:BFF:FE48:0, FastEthernet0/0
r2#
说明：路由表中只剩想要的网段，说明过滤成功。
IPv6 OSPF （OSPFv3）
OSPFv3与OSPFv2（IPv4 OSPF）的原理都是相同的，OSPFv3选举Router-ID的规则与OSPFv2相同，OSPFv3也是选择路由器上的IPv4地址作为Router-ID，如果设备上没有配置IPv4地址，那么必须手工指定Router-ID。在配置OSPFv3时，先配置进程，然后需要让哪些接口运行在OSPFv3下，就必须到相应的接口下明确指定，并不像OSPFv2那样在进程下通过network来发布。
配置OSPFv3
1.初始配置
（1）R1初始配置：
r1(config)#ipv6 unicast-routing
r1(config)#interface f0/0
r1(config-if)#ipv6 address 2012:1:1:11::1/64
r1(config)#int loopback 1
r1(config-if)#ipv6 address 3011:1:1:11::1/64
r1(config)#int loopback 2
r1(config-if)#ipv6 address 3011:1:1:12::1/64
r1(config)#int loopback 3
r1(config-if)#ipv6 address 3011:1:1:13::1/64
（2）R2初始配置：
r2(config)#ipv6 unicast-routing
r2(config)#interface f0/0
r2(config-if)#ipv6 address 2012:1:1:11::2/64
r2(config)#interface s1/0
r2(config-if)#encapsulation frame-relay
r2(config-if)#no frame-relay inverse-arp
r2(config-if)#no arp frame-relay
r2(config-if)#ipv6 address 2023:1:1:11::2/64
r2(config-if)#frame-relay map ipv6 2023:1:1:11::3 203 broadcast
r2(config-if)#
（3）R3初始配置：
r3(config)#ipv6 unicast-routing
r3(config)#interface s1/0
r3(config-if)#encapsulation frame-relay
r3(config-if)#no frame-relay inverse-arp
r3(config-if)#no arp frame-relay
r3(config-if)#ipv6 address 2023:1:1:11::3/64
r3(config-if)#frame-relay map ipv6 2023:1:1:11::2 302 broadcast
2.启动OSPFv3进程
（1）启动R1的OSPFv3进程
r1(config)#ipv6 router ospf 2
r1(config-rtr)#router-id 1.1.1.1
说明：由于没有配置IPv4地址，所以必须手工配置Router-ID
（2）启动R2的OSPFv3进程
r2(config)#ipv6 router ospf 2
r2(config-rtr)#router-id 2.2.2.2
（3）启动R3的OSPFv3进程
r3(config)#ipv6 router ospf 2
r3(config-rtr)#router-id 3.3.3.3
3.配置OSPFv3接口
（1）将R1上的接口放进OSPFv3进程
r1(config)#int f0/0
r1(config-if)#ipv6 ospf 2 area 0
r1(config)#int loopback 1
r1(config-if)#ipv6 ospf 2 area 0
（2）将R2上的接口放进OSPFv3进程
r2(config)#int f0/0
r2(config-if)#ipv6 ospf 2 area 0
r2(config)#int s1/0
r2(config-if)#ipv6 ospf 2 area 1
（3）将R3上的接口放进OSPFv3进程
r3(config)#int s1/0
r3(config-if)#ipv6 ospf 2 area 1
4.查看OSPFv3邻居
（1）查看r1邻居：
r1#show ipv6 ospf neighbor
Neighbor ID Pri State Dead Time Interface ID Interface
2.2.2.2 1 FULL/BDR 00:00:39 4 FastEthernet0/0
r1#
说明：R1与R2的OSPFv3邻居正常。
（2）查看r2邻居：
r2#show ipv6 ospf neighbor
Neighbor ID Pri State Dead Time Interface ID Interface
1.1.1.1 1 FULL/DR 00:00:35 4 FastEthernet0/0
r2#
说明：R2与R2的OSPFv3邻居正常，但与R3的邻居没有。
（3）（3）查看r3邻居：
r3#show ipv6 ospf neighbor
r3#
说明：R3没有OSPFv3邻居。
5.解决OSPFv3邻居问题
说明：由于R2与R3之间属于NBMA非广播网络，所以无法自动建邻居，要解决邻居问题，有两种方法：第一，手工指定邻居，在指定时，只须在一方指定即可，并且OSPFv3在手工指定邻居时，需要到接口下指定而不是在进程下指定，并且指定的为对方链路本地地址。第二，将网络类型从非广播网络类型改为允许广播的网络类型，如改为Point-to-point类型。
（1）查看R3连R2接口的链路本地地址
r3#show ipv6 interface brief s1/0
Serial1/0
FE80::C200:DFF:FEAC:0
2023:1:1:11::3
r3#
（2）在R2上指定R3为邻居，在接口下指定对方的链路本地地址
r2(config)#int s1/0
r2(config-if)#ipv6 ospf neighbor FE80::C200:DFF:FEAC:0
r2(config-if)#
（3）测试R2到R3接口链路本地地址的连通性
r2#ping FE80::C200:DFF:FEAC:0
Output Interface: Serial1/0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FE80::C200:DFF:FEAC:0, timeout is 2 seconds:
Packet sent with a source address of FE80::C200:BFF:FE94:0
.....
Success rate is 0 percent (0/5)
r2#
说明：由于指定邻居时，指定为对方接口的链路本地地址，所以双方接口的链路本地地址不通，邻居将仍然不能建立。
（4）解决帧中继网络下双方接口的链路本地地址的PVC映射
注：必须互相映射
R2:
r2(config)#int s1/0
r2(config-if)#fram map ipv6 FE80::C200:DFF:FEAC:0 203 broadcast
R3:
R3(config)#int s1/0
R3config-if)#fram map ipv6 FE80::C200:BFF:FE94:0 302 broadcast
(5)查看邻居
r3#show ipv6 ospf neighbor
Neighbor ID Pri State Dead Time Interface ID Interface
2.2.2.2 1 FULL/BDR 00:01:42 6 Serial1/0
r3#
说明：由于已经手工指定邻居，并且也映射了双方的链路本地地址，所以邻居成功建立。
6.查看OSPFv3路由
（1）在R1上查看OSPFv3路由
r1#sh ipv6 route ospf
IPv6 Routing Table - 11 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
D - EIGRP, EX - EIGRP external
OI2023:1:1:11::/64
via FE80::C200:BFF:FE94:0, FastEthernet0/0
r1#
说明：由于邻居已经全部正常建立，所以学习到了远程网络的路由条目。
（2）在R2上查看OSPFv3路由
r2#show ipv6 route ospf
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
D - EIGRP, EX - EIGRP external
O 3011:1:1:11::1/128
via FE80::C200:AFF:FE28:0, FastEthernet0/0
r2#
说明：由于邻居已经全部正常建立，所以学习到了远程网络的路由条目。
（3）在R3上查看OSPFv3路由
r3#show ipv6 route ospf
IPv6 Routing Table - 6 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
D - EIGRP, EX - EIGRP external
OI2012:1:1:11::/64
via FE80::C200:BFF:FE94:0, Serial1/0
OI3011:1:1:11::1/128
via FE80::C200:BFF:FE94:0, Serial1/0
r3#
说明：由于邻居已经全部正常建立，所以学习到了远程网络的路由条目。
7.解决OSPFv3路由掩码问题
说明：由于学习到的路由中，属于loopback接口的网段原本为64位，而学习到的为128位，为主机路由，所以应让路由掩码与原来的掩码一致，需要将网络类型改为Point-to-point类型。
（1）在R1改loopback接口的网络类型改为Point-to-point
r1(config)#int loopback 1
r1(config-if)#ipv6 ospf network point-to-point
r1(config-if)#
（2）查看改后的路由情况
r2#show ipv6 route ospf
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
D - EIGRP, EX - EIGRP external
O 3011:1:1:11::/64
via FE80::C200:AFF:FE28:0, FastEthernet0/0
r2#
说明：已经成功变成原来的掩码位数。
8.重分布IPv6网段
说明：将R1上的剩余网段重分布进OSPFv3
（1）在R1上配置重分布剩余网段进OSPFv3
r1(config)#route-map con permit 10
r1(config-route-map)#match interface loopback 2
r1(config-route-map)#exit
r1(config)#route-map con permit 20
r1(config-route-map)#match interface loopback 3
r1(config-route-map)#exit
r1(config)#ipv6 router ospf 2
r1(config-rtr)#redistribute connected route-map con
（2）在R2上查看重分布进OSPFv3的剩余网段
r2#show ipv6 route ospf
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
D - EIGRP, EX - EIGRP external
O 3011:1:1:11::/64
via FE80::C200:AFF:FE28:0, FastEthernet0/0
OE23011:1:1:12::/64
via FE80::C200:AFF:FE28:0, FastEthernet0/0
OE23011:1:1:13::/64
via FE80::C200:AFF:FE28:0, FastEthernet0/0
r2#
说明：可以看到，R1上的剩余网段成功被重分布进OSPFv3。
（3）在R3上查看重分布进OSPFv3的剩余网段
r3#show ipv6 route ospf
IPv6 Routing Table - 8 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
D - EIGRP, EX - EIGRP external
OI2012:1:1:11::/64
via FE80::C200:BFF:FE94:0, Serial1/0
OI3011:1:1:11::/64
via FE80::C200:BFF:FE94:0, Serial1/0
OE23011:1:1:12::/64
via FE80::C200:BFF:FE94:0, Serial1/0
OE23011:1:1:13::/64
via FE80::C200:BFF:FE94:0, Serial1/0
r3#
说明：可以看到，R1上的剩余网段成功被重分布进OSPFv3。
9.过滤IPv6路由
说明：在R3上过滤掉IPv6路由，只留想要的网段，使用distribute-list过滤
（1）配置只留3011打头的网段
r3(config)#ipv6 prefix-list abc permit 3011::/16 ge 64 le 64
r3(config)#ipv6 router ospf 2
r3(config-rtr)#distribute-list prefix-list abc in s1/0
（2）查看过滤后的路由表情况
r3#show ipv6 route ospf
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
D - EIGRP, EX - EIGRP external
OI3011:1:1:11::/64
via FE80::C200:BFF:FE94:0, Serial1/0
OE23011:1:1:12::/64
via FE80::C200:BFF:FE94:0, Serial1/0
OE23011:1:1:13::/64
via FE80::C200:BFF:FE94:0, Serial1/0
r3#
说明：路由表中只剩3011打头的网段了，说明过滤成功。
10.汇总OSPFv3外部路由
说明：对从外部重分布进OSPFv3的路由进行汇总，OSPF内的路由汇总，命令格式基本同IPv4，需要注意的是，汇总必须在重分布的路由器上配置，即必须在ASBR上配置。
（1）在ASBR（R1）上配置外部路由的汇总
说明：将3011:1:1:11::/64 ，3011:1:1:12::/64 ，3011:1:1:13::/64三条路由汇总成3011:1:1::/48
r1(config)#ipv6 router ospf 2
r1(config-rtr)#summary-prefix 3011:1:1::/48
r1(config-rtr)#
(2)在R2上查看汇总后的路由表情况
r2#show ipv6 route ospf
IPv6 Routing Table - 8 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
D - EIGRP, EX - EIGRP external
OE23011:1:1::/48
via FE80::C200:AFF:FE28:0, FastEthernet0/0
O 3011:1:1:11::/64
via FE80::C200:AFF:FE28:0, FastEthernet0/0
r2#
说明：可以看到，汇总成功。
IPv6 EIGRP (EIGRP v6)
EIGRP v6与IPv4 EIGRP的原理都是相同的，但是EIGRP v6必须有router-id才能运行，所以在EIGRP v6不能获得router-id时，请手工配置router-id；更多的是EIGRP v6进程有个shutdown的特性，要用no shutdown开启进程；在配置EIGRP v6时，先配置进程，然后需要让哪些接口运行在EIGRP v6下，就必须到相应的接口下明确指定，并不像IPv4 EIGRP那样通过network来发布。
EIGRP hello时间默认是5秒一个，在低链路是60秒一个，比如NBMA，或者所有低于或等于T1的链路（1.544M）。Hold time是hello的三倍。
配置EIGRP v6
1.初始配置
（1）R1初始配置：
r1(config)#ipv6 unicast-routing
r1(config)#int f0/0
r1(config-if)#ipv6 address 2012:1:1:11::1/64
r1(config)#int loopback 1
r1(config-if)#ipv6 address 3001:1:1:11::1/64
r1(config)#int loopback 2
r1(config-if)#ipv6 address 3002:1:1:11::1/64
r1(config)#int loopback 3
r1(config-if)#ipv6 address 3003:1:1:11::1/64
（2）R2初始配置：
r2(config)#ipv6 unicast-routing
r2(config)#int f0/0
r2(config-if)#ipv6 address 2012:1:1:11::2/64
r2(config)#int loopback 0
r2(config-if)#ipv6 address 2022:2:2:22::2/64
2.配置EIGRP v6进程
（1）在R1上启动EIGRP v6进程
r1(config)#ipv6 router eigrp 10
r1(config-rtr)#router-id 1.1.1.1
（2）在R1上启动EIGRP v6进程
r2(config)#ipv6 router eigrp 10
r2(config-rtr)#router-id 2.2.2.2
3.配置EIGRP v6接口
（1）将R1上的接口放进EIGRP v6进程
r1(config)#interface f0/0
r1(config-if)#ipv6 eigrp 10
r1(config)#int loopback 1
r1(config-if)#ipv6 eigrp 10
（2）将R2上的接口放进EIGRP v6进程
r2(config)#int f0/0
r2(config-if)#ipv6 eigrp 10
r2(config)#int loopback 0
r2(config-if)#ipv6 eigrp 10
（3）查看EIGRP v6邻居状态
r1#show ipv6 eigrp neighbors
IPv6-EIGRP neighbors for process 10
% EIGRP 10 is in SHUTDOWN
r1#
说明：从结果中看出，EIGRP v进程默认是shutdown的，必须手工开启。
（4）开启EIGRP v6进程
r1(config)#ipv6 router eigrp 10
r1(config-rtr)#no shutdown
（5）查看邻居
r1#show ipv6 eigrp neighbors
IPv6-EIGRP neighbors for process 10
H Address Interface Hold Uptime SRTT RTOQSeq
(sec) (ms) Cnt Num
0 Link-local address: Fa0/0 11 00:00:36192115202
FE80::C200:AFF:FE50:0
说明：开启EIGRP v6进程后，邻居正常建立。
4.查看EIGRP v6路由
（1）查看R1的EIGRP v6路由
r1#show ipv6 route eigrp
IPv6 Routing Table - 11 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
D - EIGRP, EX - EIGRP external
D 2022:2:2:22::/64
via FE80::C200:AFF:FE50:0, FastEthernet0/0
r1#
说明：由于EIGRP v6配置正确，成功收到对方路由条目。
（2）查看R2的EIGRP v6路由
r2#sh ipv6 route eigrp
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
D - EIGRP, EX - EIGRP external
D 3001:1:1:11::/64
via FE80::C200:9FF:FE54:0, FastEthernet0/0
r2#
说明：由于EIGRP v6配置正确，成功收到对方路由条目。
5.重分布IPv6网段
说明：将R1上的剩余网段重分布进EIGRP v6
（1）在R1上配置重分布剩余网段进EIGRP v6
r1(config)#route-map con permit 10
r1(config-route-map)#match interface loopback 2
r1(config-route-map)#exit
r1(config)#route-map con permit 20
r1(config-route-map)#match interface loopback 3
r1(config)#ipv6 router eigrp 10
r1(config-rtr)#redistribute connected route-map con
r1(config-rtr)#exit
（2）在R2上查看重分布进EIGRP v6的剩余网段
r2#sh ipv6 route eigrp
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
D - EIGRP, EX - EIGRP external
D 3001:1:1:11::/64
via FE80::C200:9FF:FE54:0, FastEthernet0/0
EX3002:1:1:11::/64
via FE80::C200:9FF:FE54:0, FastEthernet0/0
EX3003:1:1:11::/64
via FE80::C200:9FF:FE54:0, FastEthernet0/0
r2#
说明：可以看到，R1上的剩余网段成功被重分布进EIGRP v6。
6.过滤IPv6路由
说明：在R2上过滤掉IPv6路由，只留想要的网段，使用distribute-list过滤
（1）配置只留3002:1:1:11::/64网段
r2(config)#ipv6 prefix-list abc permit 3002:1:1:11::/64
r2(config)#ipv6 router eigrp 10
r2(config-rtr)#distribute-list prefix-list abc in f0/0
r2(config-rtr)#
（2）查看过滤后的路由表情况
r2#sh ipv6 route eigrp
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
D - EIGRP, EX - EIGRP external
EX3002:1:1:11::/64
via FE80::C200:9FF:FE54:0, FastEthernet0/0
r2#
说明：路由表中只剩想要的网段，说明过滤成功。
IPv6 BGP
普通情况下配置的BGP，是用来传递IPv4路由的，所传递的信息是IPv4的协议，如果要让BGP传递其它路由或协议，这就需要将BGP扩展为支持更多协议的BGP，如扩展BGP支持IPv6协议，支持vpnv4，这样的支持多协议的BGP，称为Multiprotocol BGP，即MP-BGP，
要配置MP-BGP，就需要为除IPv4之外的协议单独创建address-family，但是建立BGP邻居和正常情况下一样，当邻居建立之后，还得到address-family下活动，这是MP-BGP的特性，而需要发布的网段，也需要到address-family下发布。传递单播IPv6的address-family应该是address-family ipv6 unicast，但关键字unicast如果省略，默认就是address-family ipv6 unicast。下面根据以上特征，来配置MP-BGP传递IPv6路由。
配置IPv6 MP-BGP
1.初始配置
（1）R1初始配置：
r1(config)#ipv6 unicast-routing
r1(config)#int f0/0
r1(config-if)#ipv6 address 2012:1:1:11::1/64
r1(config)#int loopback 1
r1(config-if)#ipv6 address 3001:1:1:11::1/64
r1(config)#int loopback 2
r1(config-if)#ipv6 address 3002:1:1:11::1/64
r1(config)#int loopback 3
r1(config-if)#ipv6 address 3003:1:1:11::1/64
（2）R2初始配置：
r2(config)#ipv6 unicast-routing
r2(config)#int f0/0
r2(config-if)#ipv6 address 2012:1:1:11::2/64
r2(config)#int loopback 0
r2(config-if)#ipv6 address 2022:2:2:22::2/64
2.配置MP-BGP中的IPv6邻居
说明：所有邻居正常配置，但需要到IPv6的address-family下激活邻居。
（1）在R1上配置BGP邻居
r1(config)#router bgp 100
r1(config-router)#bgp router-id 1.1.1.1
r1(config-router)#neighbor 2012:1:1:11::2 remote-as 100
r1(config-router)#address-family ipv6
r1(config-router-af)#neighbor 2012:1:1:11::2 activate
r1(config-router-af)#exit
（2）在R2上配置BGP邻居
r2(config)#router bgp 100
r2(config-router)#bgp router-id 2.2.2.2
r2(config-router)#neighbor 2012:1:1:11::1 remote-as 100
r2(config-router)#address-family ipv6
r2(config-router-af)#neighbor 2012:1:1:11::1 activate
r2(config-router-af)#exit
3.查看IPv6 BGP邻居
（1）在R1上查看IPv6 BGP邻居
r1#show bgp sum
BGP router identifier 1.1.1.1, local AS number 100
BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVerInQ OutQ Up/DownState/PfxRcd
2012:1:1:11::24 100 5 4 1 0 0 00:01:35 0
r1#
说明：由于配置正确，所以已正常建立IPv6 BGP邻居命令。命令show bgp sum为隐藏命令。
（2）在R2上查看IPv6 BGP邻居
r2#show bgp sum
BGP router identifier 2.2.2.2, local AS number 100
BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVerInQ OutQ Up/DownState/PfxRcd
2012:1:1:11::14 100 5 6 1 0 0 00:02:02 0
r2#
说明：由于配置正确，所以已正常建立IPv6 BGP邻居命令。
4.发布IPv6路由进IPv6 BGP
(1)在R1上发布路由进IPv6 BGP
r1(config)#router bgp 100
r1(config-router)#address-family ipv6
r1(config-router-af)#network 3001:1:1:11::/64
(2)在R2上发布路由进IPv6 BGP
r2(config)#router bgp 100
r2(config-router)#address-family ipv6
r2(config-router-af)#network 2022:2:2:22::/64
(3)在R1上查看IPv6 BGP路由
r1#show bgp all
For address family: IPv6 Unicast
BGP table version is 3, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i2022:2:2:22::/64 2012:1:1:11::2 0 100 0 i
*> 3001:1:1:11::/64 :: 0 32768 i
r1#
说明：已成功学习到对方邻居发来的IPv6路由。
(4)在R2上查看IPv6 BGP路由
r2#show bgp all
For address family: IPv6 Unicast
BGP table version is 3, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 2022:2:2:22::/64 :: 0 32768 i
*>i3001:1:1:11::/64 2012:1:1:11::1 0 100 0 i
r2#
说明：已成功学习到对方邻居发来的IPv6路由。
（5）测试网络连通性
r1#ping 2022:2:2:22::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2022:2:2:22::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/96/208 ms
r1#
r2#ping 3001:1:1:11::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 3001:1:1:11::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 24/88/200 ms
r2#
说明：由于双方路由学习正常，所以网络连通性正常。
5.重分布IPv6网段
说明：将R1上的剩余网段重分布进IPv6 BGP
（1）在R1上配置重分布剩余网段进IPv6 BGP
r1(config)#route-map con permit 10
r1(config-route-map)#match interface loopback 2
r1(config-route-map)#exit
r1(config)#route-map con permit 20
r1(config-route-map)#match interface loopback 3
r1(config-route-map)#exit
r1(config)#router bgp 100
r1(config-router)#address-family ipv6
r1(config-router-af)#redistribute connected route-map con
（2）在R2上查看重分布进IPv6 BGP的剩余网段
r2#show bgp all
For address family: IPv6 Unicast
BGP table version is 11, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 2022:2:2:22::/64 :: 0 32768 i
*>i3001:1:1:11::/64 2012:1:1:11::1 0 100 0 i
*>i3002:1:1:11::/64 2012:1:1:11::1 0 100 0 ?
*>i3003:1:1:11::/64 2012:1:1:11::1 0 100 0 ?
r2#
说明：可以看到，R1上的剩余网段成功被重分布进RIPng。
6.过滤IPv6路由
说明：在R2上过滤掉IPv6路由，只留想要的网段，使用distribute-list对指定邻居进行过滤
（1）配置只留3002:1:1:11::/64网段
r2(config)#ipv6 prefix-list abc permit 3002:1:1:11::/64
r2(config)#router bgp 100
r2(config-router)#address-family ipv6
r2(config-router-af)#neighbor 2012:1:1:11::1 prefix-list abc in
（2）查看过滤后的路由表情况
r2#clear bgp ipv6 unicast *
r2#sh bgp all
For address family: IPv6 Unicast
BGP table version is 3, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 2022:2:2:22::/64 :: 0 32768 i
*>i3002:1:1:11::/64 2012:1:1:11::1 0 100 0 ?
r2#
说明：路由表中只剩想要的网段，说明过滤成功。
7.使用链路本地地址建立IPv6 BGP邻居
说明：正常情况下，IPv6 BGP使用全局地址建立邻居，也可以配置使用链路本地地址建立邻居。
（1）在R1上配置IPv6 BGP用链路本地地址建立邻居
r1(config)#router bgp 100
r1(config-router)#neighbor FE80::C200:DFF:FEC8:0 remote-as 100
r1(config-router)#neighbor FE80::C200:DFF:FEC8:0 update-source f0/0
r1(config-router)#address-family ipv6
r1(config-router-af)#neighbor FE80::C200:DFF:FEC8:0 activate
r1(config-router-af)#
（2）在R2上配置IPv6 BGP用链路本地地址建立邻居
r2(config)#router bgp 100
r2(config-router)#neighbor FE80::C200:8FF:FE10:0 remote-as 100
r2(config-router)#neighbor FE80::C200:8FF:FE10:0 update-source f0/0
r2(config-router)#address-family ipv6
r2(config-router-af)#neighbor FE80::C200:8FF:FE10:0 activate
r2(config-router-af)#
（3）查看邻居建立情况
r1#show bgp sum
BGP router identifier 1.1.1.1, local AS number 100
BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVerInQ OutQ Up/DownState/PfxRcd
FE80::C200:DFF:FEC8:0
4 100 6 7 1 0 0 00:01:30 0
r1#
r2#show bgp sum
BGP router identifier 2.2.2.2, local AS number 100
BGP table version is 1, main routing table version 1
Neighbor V AS MsgRcvd MsgSent TblVerInQ OutQ Up/DownState/PfxRcd
FE80::C200:8FF:FE10:0
4 100 8 7 1 0 0 00:02:20 0
r2#
说明：从结果中看出，双方IPv6 BGP已成功使用链路本地地址建立邻居
（4）查看路由学习情况
r1#sh bgp all
For address family: IPv6 Unicast
BGP table version is 14, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i2022:2:2:22::/64 FE80::C200:DFF:FEC8:0
0 100 0 i
*> 3001:1:1:11::/64 :: 0 32768 i
*> 3002:1:1:11::/64 :: 0 32768 ?
*> 3003:1:1:11::/64 :: 0 32768 ?
r1#
r2#show bgp all
For address family: IPv6 Unicast
BGP table version is 6, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 2022:2:2:22::/64 :: 0 32768 i
*>i3001:1:1:11::/64 FE80::C200:8FF:FE10:0
0 100 0 i
*>i3002:1:1:11::/64 FE80::C200:8FF:FE10:0
0 100 0 ?
*>i3003:1:1:11::/64 FE80::C200:8FF:FE10:0
0 100 0 ?
r2#
说明：从结果中看出，双方IPv6 BGP已成功学习到相互的IPv6路由条目。
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