网络拓扑图如下:
组网说明:
本案例采用H3C HCL模拟器来模拟多vpn-instance实例ISIS典型组网配置,为了实现不同VLAN之间通过不同的vpn实例进行隔离,因此采用多vpn实例捆绑到相应的VLAN。
VLAN 400与用于在SW1 、SW2的vpn-rt互联使用,VLAN 500用于SW1、SW2的vpn-nrt互联使用。由于VLAN 400与VLAN 500绑定到了不同的VPN实例,因此可以共同使用10.0.0.0/30作为互联地址。
业务地址、互联地址、Loopback地址如拓扑图所示。其中VLAN 10、VLAN 100属于vpn-rt中,VLAN 20、VLAN 200属于vpn-nrt实例中,另外SW1与SW2之间的互联采用trunk,互联的VLAN使用VLAN 400(绑定到vpn-rt)和VLAN 500(绑定到vpn-nrt),全网采用多VPN实例IS-IS互联互通,不通VPN实例的业务地址不能互通。
vpn-rt规划如下:
RD:100:1
RT:100:1
vpn-nrt规划如下:
RD:200:1
RT:200:1
1、分别在SW1和SW2创建VPN实例
2、根据组网说明将各业务地址、互联地址、loopback绑定到vpn实例
3、创建多实例IS-IS,并发布业务地址实现互通
4、SW1与SW2之间的互联采用trunk,仅允许互联的VLAN互通。
SW1:
[H3C]sysname SW1
#创建vpn-rt实例,并配置RD值和RT值
[SW1]ip vpn-instance vpn-rt
[SW1-vpn-instance-vpn-rt]route-distinguisher 100:1
[SW1-vpn-instance-vpn-rt]vpn-target 100:1
[SW1-vpn-instance-vpn-rt]quit
#创建vpn-nrt实例,并配置RD值和RT值
[SW1]ip vpn-instance vpn-nrt
[SW1-vpn-instance-vpn-nrt]route-distinguisher 200:1
[SW1-vpn-instance-vpn-nrt]vpn-target 200:1
[SW1-vpn-instance-vpn-nrt]quit
[SW1]int LoopBack 0
[SW1-LoopBack0]ip binding vpn-instance vpn-rt //将Loopback0绑定到vpn-rt
Some configurations on the interface are removed.
[SW1-LoopBack0]ip address 1.1.1.1 32
[SW1-LoopBack0]quit
[SW1]int LoopBack 1
[SW1-LoopBack1]ip binding vpn-instance vpn-nrt //将Loopback1绑定到vpn-nrt
Some configurations on the interface are removed.
[SW1-LoopBack1]ip address 1.1.1.1 32
[SW1-LoopBack1]quit
[SW1]vlan 10
[SW1-vlan10]quit
[SW1]vlan 20
[SW1-vlan20]quit
[SW1]vlan 400
[SW1-vlan400]quit
[SW1]vlan 500
[SW1-vlan500]quit
[SW1]int vlan 10
[SW1-Vlan-interface10]ip binding vpn-instance vpn-rt //将VLAN 10绑定到vpn-rt
Some configurations on the interface are removed.
[SW1-Vlan-interface10]ip address 192.168.10.1 24
[SW1-Vlan-interface10]quit
[SW1]int vlan 20
[SW1-Vlan-interface20]ip binding vpn-instance vpn-nrt //将VLAN 20绑定到vpn-nrt
Some configurations on the interface are removed.
[SW1-Vlan-interface20]ip address 192.168.20.1 24
[SW1-Vlan-interface20]quit
[SW1]int vlan 400
[SW1-Vlan-interface400]ip binding vpn-instance vpn-rt //将VLAN400绑定到vpn-rt
Some configurations on the interface are removed.
[SW1-Vlan-interface400]description
[SW1-Vlan-interface400]ip address 10.0.0.1 30
[SW1-Vlan-interface400]quit
[SW1]int vlan 500
[SW1-Vlan-interface500]ip binding vpn-instance vpn-nrt //将VLAN 500绑定到vpn-nrt
Some configurations on the interface are removed.
[SW1-Vlan-interface500]description
[SW1-Vlan-interface500]ip address 10.0.0.1 30
[SW1-Vlan-interface500]quit
[SW1]
[SW1]int gi 1/0/2
[SW1-GigabitEthernet1/0/2]port link-type access
[SW1-GigabitEthernet1/0/2]port access vlan 10
[SW1-GigabitEthernet1/0/2]quit
[SW1]int gi 1/0/3
[SW1-GigabitEthernet1/0/3]port link-type access
[SW1-GigabitEthernet1/0/3]port access vlan 20
[SW1-GigabitEthernet1/0/3]quit
[SW1]
[SW1]int gi 1/0/1
[SW1-GigabitEthernet1/0/1]description
[SW1-GigabitEthernet1/0/1]port link-type trunk
[SW1-GigabitEthernet1/0/1]undo port trunk permit vlan 1
[SW1-GigabitEthernet1/0/1]port trunk permit vlan 400 500
[SW1-GigabitEthernet1/0/1]quit
创建IS-IS进程,并绑定到VPN实例中
[SW1]isis 10 vpn-instance vpn-rt
[SW1-isis-10]network-entity 10.0000.0000.0001.00
[SW1-isis-10]is-level level-1
[SW1-isis-10]quit
[SW1]isis 20 vpn-instance vpn-nrt
[SW1-isis-20]network-entity 10.0000.0000.0001.00
[SW1-isis-20]is-level level-1
[SW1-isis-20]quit
将各业务地址、接口地址使能IS-IS(注意不同的VPN实例使能不同的IS-IS进程)
[SW1]interface LoopBack 0
[SW1-LoopBack0]isis enable 10
[SW1-LoopBack0]quit
[SW1]int vlan 400
[SW1-Vlan-interface400]isis enable 10
[SW1-Vlan-interface400]quit
[SW1]int vlan 10
[SW1-Vlan-interface10]isis enable 10
[SW1-Vlan-interface10]quit
[SW1]int LoopBack 1
[SW1-LoopBack1]isis enable 20
[SW1-LoopBack1]quit
[SW1]int vlan 20
[SW1-Vlan-interface20]isis enable 20
[SW1-Vlan-interface20]quit
[SW1]int vlan 500
[SW1-Vlan-interface500]isis enable 20
[SW1-Vlan-interface500]quit
[SW1]
SW2:
[H3C]sysname SW2
[SW2]ip vpn-instance vpn-rt
[SW2-vpn-instance-vpn-rt]route-distinguisher 100:1
[SW2-vpn-instance-vpn-rt]vpn-target 100:1
[SW2-vpn-instance-vpn-rt]quit
[SW2]ip vpn-instance vpn-nrt
[SW2-vpn-instance-vpn-nrt]route-distinguisher 200:1
[SW2-vpn-instance-vpn-nrt]vpn-target 200:1
[SW2-vpn-instance-vpn-nrt]quit
[SW2]int LoopBack 0
[SW2-LoopBack0]ip binding vpn-instance vpn-rt
Some configurations on the interface are removed.
[SW2-LoopBack0]ip address 2.2.2.2 32
[SW2-LoopBack0]quit
[SW2]int LoopBack 1
[SW2-LoopBack1]ip binding vpn-instance vpn-nrt
Some configurations on the interface are removed.
[SW2-LoopBack1]ip address 2.2.2.2 32
[SW2-LoopBack1]quit
[SW2]vlan 100
[SW2-vlan100]quit
[SW2]vlan 200
[SW2-vlan200]quit
[SW2]vlan 400
[SW2-vlan400]quit
[SW2]vlan 500
[SW2-vlan500]quit
[SW2]int vlan 100
[SW2-Vlan-interface100]ip binding vpn-instance vpn-rt
Some configurations on the interface are removed.
[SW2-Vlan-interface100]ip address 172.16.20.1 24
[SW2-Vlan-interface100]quit
[SW2]int vlan 200
[SW2-Vlan-interface200]ip binding vpn-instance vpn-nrt
Some configurations on the interface are removed.
[SW2-Vlan-interface200]ip address 172.16.10.1 24
[SW2-Vlan-interface200]quit
[SW2]int vlan 400
[SW2-Vlan-interface400]ip binding vpn-instance vpn-rt
Some configurations on the interface are removed.
[SW2-Vlan-interface400]description
[SW2-Vlan-interface400]ip address 10.0.0.2 30
[SW2-Vlan-interface400]quit
[SW2]int vlan 500
[SW2-Vlan-interface500]ip binding vpn-instance vpn-nrt
Some configurations on the interface are removed.
[SW2-Vlan-interface500]description
[SW2-Vlan-interface500]ip address 10.0.0.2 30
[SW2-Vlan-interface500]quit
[SW2]int gi 1/0/2
[SW2-GigabitEthernet1/0/2]port link-type access
[SW2-GigabitEthernet1/0/2]port access vlan 100
[SW2-GigabitEthernet1/0/2]quit
[SW2]int gi 1/0/3
[SW2-GigabitEthernet1/0/3]port link-type access
[SW2-GigabitEthernet1/0/3]port access vlan 200
[SW2-GigabitEthernet1/0/3]quit
[SW2]int gi 1/0/1
[SW2-GigabitEthernet1/0/1]description
[SW2-GigabitEthernet1/0/1]port link-type trunk
[SW2-GigabitEthernet1/0/1]undo port trunk permit vlan 1
[SW2-GigabitEthernet1/0/1]port trunk permit vlan 400 500
[SW2-GigabitEthernet1/0/1]quit
创建IS-IS进程,并绑定到VPN实例中
[SW2]isis 20 vpn-instance vpn-nrt
[SW2-isis-20]network-entity 10.0000.0000.0002.00
[SW2-isis-20]is-level level-1
[SW2-isis-20]quit
将各业务地址、接口地址使能IS-IS(注意不同的VPN实例使能不同的IS-IS进程)
[SW2]int LoopBack 0
[SW2-LoopBack0]isis enable 10
[SW2-LoopBack0]quit
[SW2]int vlan 100
[SW2-Vlan-interface100]isis enable 10
[SW2-Vlan-interface100]quit
[SW2]int vlan 400
[SW2-Vlan-interface400]isis enable 10
[SW2-Vlan-interface400]quit
[SW2]int LoopBack 1
[SW2-LoopBack1]isis enable 20
[SW2-LoopBack1]quit
[SW2]int vlan 200
[SW2-Vlan-interface200]isis enable 20
[SW2-Vlan-interface200]quit
[SW2]int vlan 500
[SW2-Vlan-interface500]isis enable 20
[SW2-Vlan-interface500]quit
查看各VPN路由表确认已学习到对端VPN发布的路由
[SW1]dis ip routing-table vpn-instance vpn-rt
Destinations : 19 Routes : 19
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
1.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
2.2.2.2/32 IS_L1 15 10 10.0.0.2 Vlan400
10.0.0.0/30 Direct 0 0 10.0.0.1 Vlan400
10.0.0.0/32 Direct 0 0 10.0.0.1 Vlan400
10.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
10.0.0.3/32 Direct 0 0 10.0.0.1 Vlan400
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
172.16.20.0/24 IS_L1 15 20 10.0.0.2 Vlan400
192.168.10.0/24 Direct 0 0 192.168.10.1 Vlan10
192.168.10.0/32 Direct 0 0 192.168.10.1 Vlan10
192.168.10.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.10.255/32 Direct 0 0 192.168.10.1 Vlan10
224.0.0.0/4 Direct 0 0 0.0.0.0 NULL0
224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0
255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
[SW1]
[SW1]dis ip routing-table vpn-instance vpn-nrt
Destinations : 19 Routes : 19
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
1.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
2.2.2.2/32 IS_L1 15 10 10.0.0.2 Vlan500
10.0.0.0/30 Direct 0 0 10.0.0.1 Vlan500
10.0.0.0/32 Direct 0 0 10.0.0.1 Vlan500
10.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
10.0.0.3/32 Direct 0 0 10.0.0.1 Vlan500
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
172.16.10.0/24 IS_L1 15 20 10.0.0.2 Vlan500
192.168.20.0/24 Direct 0 0 192.168.20.1 Vlan20
192.168.20.0/32 Direct 0 0 192.168.20.1 Vlan20
192.168.20.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.20.255/32 Direct 0 0 192.168.20.1 Vlan20
224.0.0.0/4 Direct 0 0 0.0.0.0 NULL0
224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0
255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
[SW1]
[SW2]dis ip routing-table vpn-instance vpn-rt
Destinations : 19 Routes : 19
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
1.1.1.1/32 IS_L1 15 10 10.0.0.1 Vlan400
2.2.2.2/32 Direct 0 0 127.0.0.1 InLoop0
10.0.0.0/30 Direct 0 0 10.0.0.2 Vlan400
10.0.0.0/32 Direct 0 0 10.0.0.2 Vlan400
10.0.0.2/32 Direct 0 0 127.0.0.1 InLoop0
10.0.0.3/32 Direct 0 0 10.0.0.2 Vlan400
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
172.16.20.0/24 Direct 0 0 172.16.20.1 Vlan100
172.16.20.0/32 Direct 0 0 172.16.20.1 Vlan100
172.16.20.1/32 Direct 0 0 127.0.0.1 InLoop0
172.16.20.255/32 Direct 0 0 172.16.20.1 Vlan100
192.168.10.0/24 IS_L1 15 20 10.0.0.1 Vlan400
224.0.0.0/4 Direct 0 0 0.0.0.0 NULL0
224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0
255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
[SW2]
[SW2]dis ip routing-table vpn-instance vpn-nrt
Destinations : 19 Routes : 19
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
1.1.1.1/32 IS_L1 15 10 10.0.0.1 Vlan500
2.2.2.2/32 Direct 0 0 127.0.0.1 InLoop0
10.0.0.0/30 Direct 0 0 10.0.0.2 Vlan500
10.0.0.0/32 Direct 0 0 10.0.0.2 Vlan500
10.0.0.2/32 Direct 0 0 127.0.0.1 InLoop0
10.0.0.3/32 Direct 0 0 10.0.0.2 Vlan500
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
172.16.10.0/24 Direct 0 0 172.16.10.1 Vlan200
172.16.10.0/32 Direct 0 0 172.16.10.1 Vlan200
172.16.10.1/32 Direct 0 0 127.0.0.1 InLoop0
172.16.10.255/32 Direct 0 0 172.16.10.1 Vlan200
192.168.20.0/24 IS_L1 15 20 10.0.0.1 Vlan500
224.0.0.0/4 Direct 0 0 0.0.0.0 NULL0
224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0
255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
[SW2]
查看IS-IS邻居的状态:
[SW1]dis isis peer
Peer information for IS-IS(vpn-rt-10)
-------------------------------------
System ID: 0000.0000.0002
Interface: Vlan400 Circuit Id: 0000.0000.0002.02
State: Up HoldTime: 8s Type: L1 PRI: 64
Peer information for IS-IS(vpn-nrt-20)
--------------------------------------
System ID: 0000.0000.0002
Interface: Vlan500 Circuit Id: 0000.0000.0002.02
State: Up HoldTime: 7s Type: L1 PRI: 64
[SW1]
[SW2]dis isis peer
Peer information for IS-IS(vpn-rt-10)
-------------------------------------
System ID: 0000.0000.0001
Interface: Vlan400 Circuit Id: 0000.0000.0002.02
State: Up HoldTime: 29s Type: L1 PRI: 64
Peer information for IS-IS(vpn-nrt-20)
--------------------------------------
System ID: 0000.0000.0001
Interface: Vlan500 Circuit Id: 0000.0000.0002.02
State: Up HoldTime: 21s Type: L1 PRI: 64
[SW2]
PC填写相应的IP地址,同VPN实例的可以PING通,不同VPN实例的不可以PING通
同VPN实例能互通,不同VPN实例不能PING通
至此,多VPN实例IS-IS典型组网配置案例已配置完成!
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