Creates a new virtual network interface on linux

create_new_virt_net_interface.sh

# Add a static route to a server on a separate lan
# duplicate

route add -net 172.17.0.0 netmask 255.255.255.0 gw 172.16.15.246
route
netstat -rn

# setup a virtual network interfece here
ifconfig eth0:0 123.123.22.22

[root@bjlinux054 tactic_vm]# sudo service network restart
Shutting down interface eth0:                              [  OK  ]
Shutting down loopback interface:                          [  OK  ]
Bringing up loopback interface:                            [  OK  ]
Bringing up interface eth0:                                [  OK  ]
[root@bjlinux054 tactic_vm]# ping 172.16.16.221
PING 172.16.16.221 (172.16.16.221) 56(84) bytes of data.
64 bytes from 172.16.16.221: icmp_seq=1 ttl=64 time=0.033 ms
64 bytes from 172.16.16.221: icmp_seq=2 ttl=64 time=0.033 ms
^C
--- 172.16.16.221 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1397ms
rtt min/avg/max/mdev = 0.033/0.033/0.033/0.000 ms

# Access it from another network by routing -- 172.16.15.246

abhishek@bjlinux068 /server/share_folder/Abhishek> sudo route add -net 172.16.16.0 netmask 255.255.255.0 gw 172.16.15.246

abhishek@bjlinux068 /server/share_folder/Abhishek> route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
172.16.226.0    *               255.255.255.0   U     0      0        0 vmnet8
172.16.113.0    *               255.255.255.0   U     0      0        0 vmnet1
172.16.16.0     172.16.15.246   255.255.255.0   UG    0      0        0 eth0
172.16.15.0     *               255.255.255.0   U     0      0        0 eth0
172.16.11.0     *               255.255.255.0   U     0      0        0 eth0
192.168.122.0   *               255.255.255.0   U     0      0        0 virbr0
link-local      *               255.255.0.0     U     1002   0        0 eth0
172.17.0.0      *               255.255.0.0     U     0      0        0 docker0
default         172.16.15.1     0.0.0.0         UG    0      0        0 eth0

abhishek@bjlinux068 /server/share_folder/Abhishek> ping 172.16.16.221
PING 172.16.16.221 (172.16.16.221) 56(84) bytes of data.
64 bytes from 172.16.16.221: icmp_seq=1 ttl=64 time=1.76 ms
64 bytes from 172.16.16.221: icmp_seq=2 ttl=64 time=0.496 ms
64 bytes from 172.16.16.221: icmp_seq=3 ttl=64 time=0.361 ms