% mich(1) Mich User Manual % Stamatin Cristina dear.volgk@gmail.com % January 6, 2019

NAME

mich - MAC/IP changer

SYNOPSIS

mich [-h] [-i [IFACE]] [-a [IPMASK]] [-m [MAC]]

DESCRIPTION

Mich is a program for manipulating MAC and IP addresses. It's written for Linux and uses iputils for that. Also, it uses arp-scan to resolve conflicts due to setting IP/MAC addresses which exists in the local network.

Mich can get the current interfaces/IP/MAC and set like specified IP/MAC to the interface, and a random one.

See EXAMPLES for more usage info.

OPTIONS

-i [IFACE] : Without an argument, displays a list of interfaces. If the argument IFACE is specified, all further steps to set the IP/MAC addresses will be performed on this interface.

-a [IPMASK] : For this option the interface must be specified: -i IFACE. Without an argument, displays the current IP address on the specified interface. If the argument is an IP (192.168.0.7), then this IP will be set. If the argument is a MASK (192.168.0.0/24), then will be set a random IP in the corresponding range.

-m [MAC] : For this option the interface must be specified: -i IFACE. Without an argument, displays the current MAC address on the specified interface. If the argument is 0, then will be set a random MAC.

Before setting of IP and MAC addresses, mich checks if the chosen IP/MAC is unique in the LAN (via arp-scan).

For setting IP/MAC addresses the program must be run with root privileges. Try sudo or run in root shell.

EXAMPLES

Get the list of network interfaces

$ mich -i
lo
enp1s0f1
wlp2s0

Get current IP address

$ mich -i wlp2s0 -a
192.168.0.102

Get current MAC address

$ mich -i wlp2s0 -m
00:11:22:33:44:55:66

Save current IP and MAC to file

$ mich -i wlp2s0 -a -m > /tmp/ipmac

Set IP address

$ sudo mich -i wlp2s0 -a 192.168.0.105

Set random IP address

$ sudo mich -i wlp2s0 -a 192.168.0.0/24
Will set an IP from range: 192.168.0.[1-254]

Set random IP and MAC addresses every minute

$ sudo watch -n 60 ./mich -i wlp2s0 -a 192.168.0.0/24 -m 0

Set MAC address

$ sudo mich -i wlp2s0 -m XX:XX:XX:XX:XX:XX

Set random MAC address

$ sudo mich -i wlp2s0 -m 0

Restore previous IP and MAC from saved file

$ sudo mich -i wlp2s0 -a $(head -1 /tmp/ipmac) \
  -m $(tail -1 /tmp/ipmac)

LICENSE

GPLv3

LINKS

https://github.com/volgk/mich

SEE ALSO

ip(8), arp-scan(1)