Article Directory
1. Experimental environment
6 routers
2. Experimental purpose
Interoperability throughout the network
Three, experimental steps
R1
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R1
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 16.0.0.1 30
[R1-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R1-GigabitEthernet0/0/0]int g0/0/1
[R1-GigabitEthernet0/0/1]ip add 12.0.0.1 30
[R1-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[R1-GigabitEthernet0/0/1]int loo 0
[R1-LoopBack0]ip add 1.1.1.1 32
[R1-LoopBack0]q
[R1]isis
[R1-isis-1]network-entity 49.0001.0010.0100.1001.00
[R1-isis-1]is-level level-1
Info: IS Level Changed, Resetting ISIS...
[R1-isis-1]int g0/0/1
[R1-GigabitEthernet0/0/1]isis enable
[R1-GigabitEthernet0/0/1]q
[R1]int loo 0
[R1-LoopBack0]isis enable
[R1-LoopBack0]q
[R1]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 14 Routes : 14
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 ISIS-L1 15 10 D 12.0.0.2 GigabitEthernet
0/0/1
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.2/32 ISIS-L1 15 10 D 12.0.0.2 GigabitEthernet
0/0/1
12.0.0.0/30 Direct 0 0 D 12.0.0.1 GigabitEthernet
0/0/1
12.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
12.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
16.0.0.0/30 Direct 0 0 D 16.0.0.1 GigabitEthernet
0/0/0
16.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
16.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/30 ISIS-L1 15 20 D 12.0.0.2 GigabitEthernet
0/0/1
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[R1]rip
[R1-rip-1]v 2
[R1-rip-1]un summary
[R1-rip-1]network 16.0.0.0
[R1-rip-1]q
[R1]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 15 Routes : 15
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 ISIS-L1 15 10 D 12.0.0.2 GigabitEthernet
0/0/1
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.2/32 ISIS-L1 15 10 D 12.0.0.2 GigabitEthernet
0/0/1
6.6.6.6/32 RIP 100 1 D 16.0.0.2 GigabitEthernet
0/0/0
12.0.0.0/30 Direct 0 0 D 12.0.0.1 GigabitEthernet
0/0/1
12.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
12.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
16.0.0.0/30 Direct 0 0 D 16.0.0.1 GigabitEthernet
0/0/0
16.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
16.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/30 ISIS-L1 15 20 D 12.0.0.2 GigabitEthernet
0/0/1
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[R1]isis
[R1-isis-1]import-route rip 1 level-1
[R1-isis-1]q
[R1]rip
[R1-rip-1]import-route isis 1 cost 5
[R1-rip-1]q
[R1]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 17 Routes : 17
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 ISIS-L1 15 10 D 12.0.0.2 GigabitEthernet
0/0/1
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.2/32 ISIS-L1 15 10 D 12.0.0.2 GigabitEthernet
0/0/1
6.6.6.6/32 RIP 100 1 D 16.0.0.2 GigabitEthernet
0/0/0
12.0.0.0/30 Direct 0 0 D 12.0.0.1 GigabitEthernet
0/0/1
12.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
12.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
16.0.0.0/30 Direct 0 0 D 16.0.0.1 GigabitEthernet
0/0/0
16.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
16.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/30 ISIS-L1 15 20 D 12.0.0.2 GigabitEthernet
0/0/1
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
203.0.0.0/24 RIP 100 1 D 16.0.0.2 GigabitEthernet
0/0/0
203.0.1.0/24 RIP 100 1 D 16.0.0.2 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[R1]isis
[R1-isis-1]summary 203.0.0.0 255.255.254.0 level-1
[R1-isis-1]q
[R1]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 23 Routes : 23
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 ISIS-L1 15 10 D 12.0.0.2 GigabitEthernet
0/0/1
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.2/32 ISIS-L1 15 10 D 12.0.0.2 GigabitEthernet
0/0/1
3.3.3.3/32 ISIS-L1 15 20 D 12.0.0.2 GigabitEthernet
0/0/1
4.4.4.4/32 ISIS-L1 15 30 D 12.0.0.2 GigabitEthernet
0/0/1
5.5.5.5/32 ISIS-L1 15 40 D 12.0.0.2 GigabitEthernet
0/0/1
6.6.6.6/32 RIP 100 1 D 16.0.0.2 GigabitEthernet
0/0/0
12.0.0.0/30 Direct 0 0 D 12.0.0.1 GigabitEthernet
0/0/1
12.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
12.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
16.0.0.0/30 Direct 0 0 D 16.0.0.1 GigabitEthernet
0/0/0
16.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
16.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/30 ISIS-L1 15 20 D 12.0.0.2 GigabitEthernet
0/0/1
34.0.0.0/30 ISIS-L1 15 30 D 12.0.0.2 GigabitEthernet
0/0/1
45.0.0.0/30 ISIS-L1 15 40 D 12.0.0.2 GigabitEthernet
0/0/1
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
202.0.0.0/23 ISIS-L1 15 40 D 12.0.0.2 GigabitEthernet
0/0/1
203.0.0.0/24 RIP 100 1 D 16.0.0.2 GigabitEthernet
0/0/0
203.0.1.0/24 RIP 100 1 D 16.0.0.2 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
R2
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R2
[R2]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 12.0.0.2 30
[R2-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[R2-GigabitEthernet0/0/1]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 23.0.0.1 30
[R2-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R2-GigabitEthernet0/0/0]int loo 0
[R2-LoopBack0]ip add 2.2.2.2 32
[R2-LoopBack0]q
[R2]isis
[R2-isis-1]network-entity 49.0001.0020.0200.2002.00
[R2-isis-1]is-level level-1-2
[R2-isis-1]int g0/0/1
[R2-GigabitEthernet0/0/1]isis enable
[R2-GigabitEthernet0/0/1]int g0/0/0
[R2-GigabitEthernet0/0/0]isis enable
[R2-GigabitEthernet0/0/0]q
[R2]int loo 0
[R2-LoopBack0]isis enable
[R2-LoopBack0]q
[R2]isis
[R2-isis-1]import-route isis level-2 into level-1
[R2-isis-1]q
R3
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R3
[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 23.0.0.3 30
Error: The specified IP address is invalid.
[R3-GigabitEthernet0/0/0]ip add 23.0.0.2 30
[R3-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R3-GigabitEthernet0/0/0]int g0/0/1
[R3-GigabitEthernet0/0/1]ip add 34.0.0.1 30
[R3-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[R3-GigabitEthernet0/0/1]int loo 0
[R3-LoopBack0]ip add 3.3.3.3 32
[R3-LoopBack0]q
[R3]isis
[R3-isis-1]network-entity 49.0000.0030.0300.3003.00
[R3-isis-1]is-level level-2
Info: IS Level Changed, Resetting ISIS...
[R3-isis-1]int g0/0/0
[R3-GigabitEthernet0/0/0]isis enable
[R3-GigabitEthernet0/0/0]int g0/0/1
[R3-GigabitEthernet0/0/1]isis enable
[R3-GigabitEthernet0/0/1]int loo 0
[R3-LoopBack0]isis enable
[R3-LoopBack0]q
R4
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R4
[R4]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 34.0.0.2 30
[R4-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[R4-GigabitEthernet0/0/1]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 45.0.0.1 30
[R4-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R4-GigabitEthernet0/0/0]int loo 0
[R4-LoopBack0]ip add 4.4.4.4 32
[R4-LoopBack0]q
[R4]isis
[R4-isis-1]network-entity 49.0002.0040.0400.4004.00
[R4-isis-1]is-level level-1-2
[R4-isis-1]int g0/0/1
[R4-GigabitEthernet0/0/1]isis enable
[R4-GigabitEthernet0/0/1]int g0/0/0
[R4-GigabitEthernet0/0/0]isis enable
[R4-GigabitEthernet0/0/0]q
[R4]int loo 0
[R4-LoopBack0]isis enable
[R4-LoopBack0]q
[R4]isis
[R4-isis-1]import-route isis level-2 into level-1
[R4]isis
[R4-isis-1]summary 202.0.0.0 255.255.254.0 level-1-2
[R4-isis-1]q
R5
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R5
[R5]int g0/0/0
[R5-GigabitEthernet0/0/0]ip add 45.0.0.2 30
[R5-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R5-GigabitEthernet0/0/0]int loo 0
[R5-LoopBack0]ip add 5.5.5.5 32
[R5-LoopBack0]int loo 1
[R5-LoopBack1]ip add 202.0.0.1 24
[R5-LoopBack1]int loo 2
[R5-LoopBack2]ip add 202.0.1.1 24
[R5-LoopBack2]q
[R5]isis
[R5-isis-1]network-entity 49.0002.0050.0500.5005.00
[R5-isis-1]is-level level-1
Info: IS Level Changed, Resetting ISIS...
[R5-isis-1]int g0/0/0
[R5-GigabitEthernet0/0/0]isis enable
[R5-GigabitEthernet0/0/0]int loo 0
[R5-LoopBack0]isis enable
[R5-LoopBack0]q
[R5-LoopBack0]int loo 1
[R5-LoopBack1]isis enable
[R5-LoopBack1]int loo 2
[R5-LoopBack2]isis enable
[R5-LoopBack2]q
[R5]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 25 Routes : 25
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 ISIS-L1 15 10 D 45.0.0.1 GigabitEthernet
0/0/0
1.1.1.1/32 ISIS-L1 15 40 D 45.0.0.1 GigabitEthernet
0/0/0
2.2.2.2/32 ISIS-L1 15 30 D 45.0.0.1 GigabitEthernet
0/0/0
3.3.3.3/32 ISIS-L1 15 20 D 45.0.0.1 GigabitEthernet
0/0/0
4.4.4.4/32 ISIS-L1 15 10 D 45.0.0.1 GigabitEthernet
0/0/0
5.5.5.5/32 Direct 0 0 D 127.0.0.1 LoopBack0
6.6.6.6/32 ISIS-L1 15 104 D 45.0.0.1 GigabitEthernet
0/0/0
12.0.0.0/30 ISIS-L1 15 40 D 45.0.0.1 GigabitEthernet
0/0/0
16.0.0.0/30 ISIS-L1 15 104 D 45.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/30 ISIS-L1 15 30 D 45.0.0.1 GigabitEthernet
0/0/0
34.0.0.0/30 ISIS-L1 15 20 D 45.0.0.1 GigabitEthernet
0/0/0
45.0.0.0/30 Direct 0 0 D 45.0.0.2 GigabitEthernet
0/0/0
45.0.0.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
45.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
202.0.0.0/24 Direct 0 0 D 202.0.0.1 LoopBack1
202.0.0.1/32 Direct 0 0 D 127.0.0.1 LoopBack1
202.0.0.255/32 Direct 0 0 D 127.0.0.1 LoopBack1
202.0.1.0/24 Direct 0 0 D 202.0.1.1 LoopBack2
202.0.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack2
202.0.1.255/32 Direct 0 0 D 127.0.0.1 LoopBack2
203.0.0.0/23 ISIS-L1 15 104 D 45.0.0.1 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
R6
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R6
[R6]int g0/0/0
[R6-GigabitEthernet0/0/0]ip add 16.0.0.2 30
[R6-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R6-GigabitEthernet0/0/0]int loo 0
[R6-LoopBack0]ip add 6.6.6.6 32
[R6-LoopBack0]int loo 1
[R6-LoopBack1]ip add 203.0.0.1 24
[R6-LoopBack1]int loo 2
[R6-LoopBack2]ip add 203.0.1.1 24
[R6-LoopBack2]q
[R6]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 14 Routes : 14
Destination/Mask Proto Pre Cost Flags NextHop Interface
6.6.6.6/32 Direct 0 0 D 127.0.0.1 LoopBack0
16.0.0.0/30 Direct 0 0 D 16.0.0.2 GigabitEthernet
0/0/0
16.0.0.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
16.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
203.0.0.0/24 Direct 0 0 D 203.0.0.1 LoopBack1
203.0.0.1/32 Direct 0 0 D 127.0.0.1 LoopBack1
203.0.0.255/32 Direct 0 0 D 127.0.0.1 LoopBack1
203.0.1.0/24 Direct 0 0 D 203.0.1.1 LoopBack2
203.0.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack2
203.0.1.255/32 Direct 0 0 D 127.0.0.1 LoopBack2
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[R6]rip
[R6-rip-1]v 2
[R6-rip-1]un summary
[R6-rip-1]network 6.0.0.0
[R6-rip-1]network 16.0.0.0
[R6-rip-1]network 203.0.0.0
[R6-rip-1]network 203.0.1.0
[R6-rip-1]q
[R6]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 18 Routes : 18
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.1/32 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
2.2.2.2/32 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
6.6.6.6/32 Direct 0 0 D 127.0.0.1 LoopBack0
12.0.0.0/30 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
16.0.0.0/30 Direct 0 0 D 16.0.0.2 GigabitEthernet
0/0/0
16.0.0.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
16.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/30 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
203.0.0.0/24 Direct 0 0 D 203.0.0.1 LoopBack1
203.0.0.1/32 Direct 0 0 D 127.0.0.1 LoopBack1
203.0.0.255/32 Direct 0 0 D 127.0.0.1 LoopBack1
203.0.1.0/24 Direct 0 0 D 203.0.1.1 LoopBack2
203.0.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack2
203.0.1.255/32 Direct 0 0 D 127.0.0.1 LoopBack2
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[R6]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 25 Routes : 25
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.1/32 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
2.2.2.2/32 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
3.3.3.3/32 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
4.4.4.4/32 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
5.5.5.5/32 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
6.6.6.6/32 Direct 0 0 D 127.0.0.1 LoopBack0
12.0.0.0/30 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
16.0.0.0/30 Direct 0 0 D 16.0.0.2 GigabitEthernet
0/0/0
16.0.0.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
16.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/30 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
34.0.0.0/30 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
45.0.0.0/30 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
202.0.0.0/24 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
202.0.1.0/24 RIP 100 6 D 16.0.0.1 GigabitEthernet
0/0/0
203.0.0.0/24 Direct 0 0 D 203.0.0.1 LoopBack1
203.0.0.1/32 Direct 0 0 D 127.0.0.1 LoopBack1
203.0.0.255/32 Direct 0 0 D 127.0.0.1 LoopBack1
203.0.1.0/24 Direct 0 0 D 203.0.1.1 LoopBack2
203.0.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack2
203.0.1.255/32 Direct 0 0 D 127.0.0.1 LoopBack2