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Operation Steps
One: Configure IP
A:ifconfig Ens33 172.100.0.100/16
Route add default GW 172.100.0.1
R1:ifconfig eth0 172.100.0.1/16
Ifconfig eth1 14.0.0.1/8
R2:ifconfig eth0 14.0.0.2/8
Ifconfig eth1 10.0.0.1/8
R3:ifconfig eth0 10.0.0.2/8
Ifconfig eth1192.168.0.1/24
B:ifconfig Ens33 192.168.0.100/24
Route add default GW 192.168.0.1
Two: Shut down the firewall of all machines
Iptables-f
Three: Open the R1 R2 machine routing function
Echo 1 >/PROC/SYS/NET/IPV4/IP_FORWD
Four: Add Route records
R1:route add-net 192.168.0.0/24 GW 14.0.0.2
Route add-net 10.0.0.0/8 GW 14.0.0.2
R2:route add-net 172.100.0.0/16 GW 14.0.0.2
Route add-net 192.168.0.1/24 GW 10.0.0.2
R3:route add-net 172.100.0.1/16 GW 10.0.0.1
Route add-net 14.0.0.0/8 GW 10.0.0.1
Note: Ifconfig added IP address may be lost, after the experiment if aping do not pass B please pingR1 R2 R3 each port, query the problem.
The case of AB Unicom
Route table for a
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R1
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R2
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R3
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B
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After everything is OK, a can ping B.
This article is from the "12726013" blog, please be sure to keep this source http://12736013.blog.51cto.com/12726013/1908805
Simulation experiment of three-route Unicom