实验目录：
1.实现多区域多level之间的通信
2.路由渗透
3.ipv6 default-route-advertise 命令用来设置默认路由器
4.配置IS-IS链路度量值
5.配置isis路由的优先级
6.配置接口网络类型（同ipv4实验）
7.配置IS-IS引入外部路由
8.配置IS-IS最大等价路由条数
9.配置IS-IS路由聚合（路由汇总）
一.实现多区域多level之间的通信（ipv6）
配置ipv6地址
[R1]ipv6
[R1]int lo0
[R1-LoopBack0]ipv6 add 1::1/128
[R1-LoopBack0]q
[R1]int s0/2/0
[R1-Serial0/2/0]ipv6 add 2001::1/64
[R1-Serial0/2/0]q
[R2]ipv6
[R2]int lo0
[R2-LoopBack0]ipv6 add 2::2/128
[R2-LoopBack0]int s0/2/0
[R2-Serial0/2/0]ipv6 add 2001::2/64
[R2-Serial0/2/0]int s0/2/2
[R2-Serial0/2/2]ipv6 add 2002::1/64
[R2-Serial0/2/2]q
[R3]ipv6
[R3]int lo0
[R3-LoopBack0]ipv6 add 3::3/128
[R3-LoopBack0]q
[R3]int s0/2/0
[R3-Serial0/2/0]ipv6 add 2002::2/64
[R3-Serial0/2/0]q
[R3]int s0/2/2
[R3-Serial0/2/2]ipv6 add 2003::1/64
[R3-Serial0/2/2]q
[R4]ipv6
[R4]int lo0
[R4-LoopBack0]ipv6 add 4::4/128
[R4-LoopBack0]q
[R4]int s0/2/0
[R4-Serial0/2/0]ipv6 add 2003::2/64
[R4-Serial0/2/0]q
[R4]int s0/2/2
[R4-Serial0/2/2]ipv6 add 2004::1/64
[R4-Serial0/2/2]q
[R5]ipv6
[R5]int lo0
[R5-LoopBack0]ipv6 add 5::5/128
[R5-LoopBack0]q
[R5]int s0/2/2
[R5-Serial0/2/2]ipv6 add 2004::2/64
[R5-Serial0/2/2]q
开启ipv6的isis功能
[R1]isis
[R1-isis-1]network-entity 01.0000.0000.0001.00
[R1-isis-1]is-level level-1
[R1-isis-1]ipv6 ?
default-route-advertise Control the advertisement of the default route
enable Enable IPV6 Processing
filter-policy Set route filtering policy
import-route Import routes from other protocols into ISIS
maximum Set number of equal cost routes (paths)
preference Set ISIS route preference
summary Configure Summary Address for IPv6
[R1-isis-1]ipv6 enable 开启ipv6功能，如果这不开启，在接口下就不能开启ISIS的功能。
[R1-isis-1]q
[R1]int lo0
[R1-LoopBack0]isis ipv6 enable
[R1-LoopBack0]q
[R1]int s0/2/0
[R1-Serial0/2/0]isis ipv6 enable
[R1-Serial0/2/0]q
[R2]isis
[R2-isis-1]network-entity 01.0000.0000.0002.00
[R2-isis-1]is-level level-1-2
[R2-isis-1]ipv6 enable
[R2-isis-1]q
[R2]int lo0
[R2-LoopBack0]isis ipv6 enable
[R2-LoopBack0]int s0/2/2
[R2-Serial0/2/2]isis ipv6 enable
[R2-Serial0/2/2]q
[R2]int s0/2/0
[R2-Serial0/2/0]isis ipv6 enable
[R2-Serial0/2/0]q
[R3]isis
[R3-isis-1]network-entity 02.0000.0000.0001.00
[R3-isis-1]is-level level-2
[R3-isis-1]ipv6 enable
[R3-isis-1]q
[R3]int lo0
[R3-LoopBack0]isis ipv6 enable
[R3-LoopBack0]q
[R3]int s0/2/0
[R3-Serial0/2/0]isis ipv6 enable
[R3-Serial0/2/0]q
[R3]int s0/2/2
[R3-Serial0/2/2]isis ipv6 enable
[R3-Serial0/2/2]q
[R4]isis
[R4-isis-1]network-entity 03.0000.0000.0003.00
[R4-isis-1]is-level level-1-2
[R4-isis-1]ipv6 enable
[R4-isis-1]q
[R4]int lo0
[R4-LoopBack0]isis ipv6 enable
[R4-LoopBack0]q
[R4]int s0/2/0
[R4-Serial0/2/0]isis ipv6 enable
[R4-Serial0/2/0]q
[R4]int s0/2/2
[R4-Serial0/2/2]isis ipv6 enable
[R4-Serial0/2/2]q
[R5]isis
[R5-isis-1]network-entity 03.0000.0000.0002.00
[R5-isis-1]is-level level-1
[R5-isis-1]ipv6 enable
[R5-isis-1]q
[R5]int lo0
[R5-LoopBack0]isis ipv6 enable
[R5-LoopBack0]int s0/2/2
[R5-Serial0/2/2]isis ipv6 enable
[R5-Serial0/2/2]q
查看ipv6的isis路由表的命令寥寥无几啊
[R1]display ipv6 routing-table protocol isisv6
ISISv6 Routing Table :
Summary Count : 3
ISISv6 Routing Table's Status : < Active >
Summary Count : 3
Destination: ::/0 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 10
Destination: 2::2/128 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 10
Destination: 2002::/64 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 20
ISISv6 Routing Table's Status : < Inactive >
Summary Count : 0
[R1]ping 5::5
Error: Ping: Unknown host 5::5
[R1]ping ipv6 5::5
PING 5::5 : 56 data bytes, press CTRL_C to break
Reply from 5::5
bytes=56 Sequence=1 hop limit=61 time = 9 ms
Reply from 5::5
bytes=56 Sequence=2 hop limit=61 time = 10 ms
Reply from 5::5
bytes=56 Sequence=3 hop limit=61 time = 15 ms
Request time out
Reply from 5::5
bytes=56 Sequence=5 hop limit=61 time = 20 ms
--- 5::5 ping statistics ---
5 packet(s) transmitted
4 packet(s) received
20.00% packet loss
round-trip min/avg/max = 9/13/20 ms
此时就实现了多区域多leve之间的通信！
查看isis接口情况
[R1]display isis interface
Interface information for ISIS(1)
---------------------------------
Interface: LoopBack0
Id IPV4.State IPV6.State MTU Type DIS
001 Up Up 1536 L1/L2 --
Interface: Serial0/2/0
Id IPV4.State IPV6.State MTU Type DIS
002 Up Up 1500 L1/L2 --
查看数据库详细信息
[R1]display isis lsdb verbose
Database information for ISIS(1)
--------------------------------
Level-1 Link State Database
LSPID Seq Num Checksum Holdtime Length ATT/P/OL
-------------------------------------------------------------------------------
0000.0000.0001.00-00* 0x00000018 0xaf8d 1181 93 0/0/0
SOURCE 0000.0000.0001.00
NLPID IPV4
NLPID IPV6
AREA ADDR 01
INTF ADDR 1.1.1.1
INTF ADDR 192.168.1.1
INTF ADDR V6 1::1
INTF ADDR V6 2001::1
NBR ID 0000.0000.0002.00 COST: 10
0000.0000.0001.00-01* 0x00000013 0xdff7 1181 91 0/0/0
SOURCE 0000.0000.0001.00
IP-Internal 1.1.1.1 255.255.255.255 COST: 0
IP-Internal 192.168.1.0 255.255.255.0 COST: 10
IPV6 1::1/128 COST: 0
IPV6 2001::/64 COST: 10
0000.0000.0002.00-00 0x00000020 0x2857 1167 113 1/0/0
SOURCE 0000.0000.0002.00
NLPID IPV4
NLPID IPV6
AREA ADDR 01
INTF ADDR 192.168.1.2
INTF ADDR 192.168.2.1
INTF ADDR 2.2.2.2
INTF ADDR V6 2::2
INTF ADDR V6 2002::1
INTF ADDR V6 2001::2
NBR ID 0000.0000.0001.00 COST: 10
0000.0000.0002.00-01 0x00000018 0x103e 1167 117 0/0/0
SOURCE 0000.0000.0002.00
IP-Internal 192.168.1.0 255.255.255.0 COST: 10
IP-Internal 192.168.2.0 255.255.255.0 COST: 10
IP-Internal 2.2.2.2 255.255.255.255 COST: 0
IPV6 2::2/128 COST: 0
IPV6 2002::/64 COST: 10
IPV6 2001::/64 COST: 10
*-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload
[R2]display ipv6 routing-table protocol isisv6
ISISv6 Routing Table :
Summary Count : 6
ISISv6 Routing Table's Status : < Active >
Summary Count : 6
Destination: 1::1/128 Protocol : ISISv6
NextHop : FE80::886D:0:17A4:1 Preference: 15
Interface : S0/2/0 Cost : 10
Destination: 3::3/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 10
Destination: 4::4/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 5::5/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 30
Destination: 2003::/64 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 2004::/64 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 30
ISISv6 Routing Table's Status : < Inactive >
Summary Count : 0
二.路由渗透
实验拓扑同实验一
[R2]isis
[R2-isis-1]import-route ?
bgp4+ Border Gateway Protocol (BGP4+) routes
direct Direct routes
isisv6 Intermediate System to Intermediate System (ISISv6) routes
ospfv3 Open Shortest Path First Version 3 (OSPFv3) routes
ripng Routing Information Protocol for IPv6 (RIPng) routes
static Static routes
[R2-isis-1]ipv6 import-route isisv6 ?
INTEGER<1-65535> Process ID
cost Cost of imported routes
level-1 Import into level-1 area
level-1-2 Import into level-1 and level-2 area
level-2 Import into level-2 area or set Route Leaking
route-policy Apply the specified route policy to filter route
tag Set tag for routes imported into ISIS
<cr>
[R2-isis-1]ipv6 import-route isisv6 level-2 into level-1
R1可以学到R5的路由，以及level2的路由
[R1]display ipv6 routing-table protocol isisv6
ISISv6 Routing Table :
Summary Count : 8
ISISv6 Routing Table's Status : < Active >
Summary Count : 8
Destination: ::/0 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 10
Destination: 2::2/128 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 10
Destination: 3::3/128 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 20
Destination: 4::4/128 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 30
Destination: 5::5/128 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 40
Destination: 2002::/64 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 20
Destination: 2003::/64 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 30
Destination: 2004::/64 Protocol : ISISv6
NextHop : FE80::8D1B:0:22FE:1 Preference: 15
Interface : S0/2/0 Cost : 40
ISISv6 Routing Table's Status : < Inactive >
Summary Count : 0
三.Ipv6 default-route-advertise 命令用设置默认路由器
实验拓扑同实验一
[R4]isis
[R4-isis-1]ipv6 default-route-advertise
下面的查看时没有默认路由的，level-2默认没有默认路由
[R2]display ipv6 routing-table protocol isisv6
ISISv6 Routing Table :
Summary Count : 6
ISISv6 Routing Table's Status : < Active >
Summary Count : 6
Destination: 1::1/128 Protocol : ISISv6
NextHop : FE80::886D:0:17A4:1 Preference: 15
Interface : S0/2/0 Cost : 10
Destination: 3::3/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 10
Destination: 4::4/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 5::5/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 30
Destination: 2003::/64 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 2004::/64 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 30
ISISv6 Routing Table's Status : < Inactive >
Summary Count : 0
使用Ipv6 default-route-advertise命令后，就可以向level-2存放默认路由
[R2]display ipv6 routing-table protocol isisv6
ISISv6 Routing Table :
Summary Count : 7
ISISv6 Routing Table's Status : < Active >
Summary Count : 7
Destination: ::/0 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 1::1/128 Protocol : ISISv6
NextHop : FE80::886D:0:17A4:1 Preference: 15
Interface : S0/2/0 Cost : 10
Destination: 3::3/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 10
Destination: 4::4/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 5::5/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 30
Destination: 2003::/64 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 2004::/64 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 30
ISISv6 Routing Table's Status : < Inactive >
Summary Count : 0
四.配置IS-IS链路度量值（同ipv4）
做法和ipv4一样，下面的全局的也和ipv4相同！
详细情况请看ipv4
实验拓扑同实验一
我只做了一下基于端口的cost
[R4]int s0/2/2
[R4-Serial0/2/2]isis cost 21
[R2]display ipv6 routing-table protocol isisv6
ISISv6 Routing Table :
Summary Count : 6
ISISv6 Routing Table's Status : < Active >
Summary Count : 6
Destination: 1::1/128 Protocol : ISISv6
NextHop : FE80::886D:0:17A4:1 Preference: 15
Interface : S0/2/0 Cost : 10
Destination: 3::3/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 10
Destination: 4::4/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 5::5/128 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 41
Destination: 2003::/64 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 20
Destination: 2004::/64 Protocol : ISISv6
NextHop : FE80::D50:0:20E2:1 Preference: 15
Interface : S0/2/2 Cost : 41
ISISv6 Routing Table's Status : < Inactive >
Summary Count : 0
五.配置isis路由的优先级
[R5]isis
[R5-isis-1]ipv6 preference 25
[R5-isis-1]q
六.配置接口网络类型（同ipv4）
下面是ipv6在isis所可以做的实验
七.配置IS-IS引入外部路由
八.配置IS-IS最大等价路由条数
九.配置IS-IS路由聚合（路由汇总）
[R5-isis-1]ipv6 ?
default-route-advertise Control the advertisement of the default route
enable Enable IPV6 Processing
filter-policy Set route filtering policy
import-route Import routes from other protocols into ISIS
maximum Set number of equal cost routes (paths)
preference Set ISIS route preference
summary Configure Summary Address for IPv6
[R5]int s0/2/2
[R5-Serial0/2/2]isis ipv6 ?
enable Enable IPV6 Processing
在接口视图下只能开启ipv6的isis功能
来源：https://www.cnblogs.com/niezhongle/p/11213392.html