nmapper

A tool to scan and list local network hosts. Useful for quick network discovery of new connected devices.

Installation:

pip install nmapper

Requirements:

This tool requires nmap to be available in the system. On Debian/Ubuntu:

apt install nmap

Usage:

nmapper hosts
nmapper hosts 1       # for 1 scan pass, instead of 3 (default)
nmapper config list   # to show all configuration options
nmapper config --help # for more configuration commands, including edition of defaults
nmapper alias list    # to show all MAC address aliases
nmapper alias --help  # for more alias commands, including adding and removing aliases

Retrieving MAC addresses can only be done when application is run with elevated privileges

Getting your IP address to scan for hosts on the same network

$ hostname -I

Examples

Scan for hosts including MAC addresses

$ sudo nmapper hosts
Getting hosts in 192.168.1.0/24, 3 passes...
Number of hosts found: 8

+---------------+----------------------+-------------------+-------------------+--------+
|          Host |             Hostname |               MAC |             Alias | Status |
+---------------+----------------------+-------------------+-------------------+--------+
|   192.168.1.1 |             _gateway | 00:07:4F:C5:1E:72 |            router |   up   |
|  192.168.1.64 |                      | 50:31:D4:8A:10:D6 |       quicksilver |   up   |
|  192.168.1.66 |                      | 19:5B:2D:3C:44:74 |       black-widow |   up   |
| 192.168.1.148 |                      | 18:C9:A2:F9:1E:9A |           ant-man |   up   |
| 192.168.1.175 |                      | F9:73:75:DB:63:82 |         wolverine |   up   |
| 192.168.1.177 |   foobar-ragnar-5490 | 9C:ED:6B:4C:08:60 |            vision |   up   |
| 192.168.1.182 |                      | 5D:21:F0:15:68:1D |         iron-fist |   up   |
| 192.168.1.235 |                      | A5:7E:B1:15:04:28 |      juan-tastico |   up   |
+---------------+----------------------+-------------------+-------------------+--------+

New hosts since last scan:
192.168.1.148

Removed hosts since last scan:
192.168.1.150

Scan for hosts no MAC addresses

$ nmapper hosts
Getting hosts in 192.168.1.0/24, 3 passes...
Number of hosts found: 8

+---------------+----------------------+------+-------+--------+
|          Host |             Hostname |  MAC | Alias | Status |
+---------------+----------------------+------+-------+--------+
|   192.168.1.1 |             _gateway | None |  None |   up   |
|  192.168.1.64 |                      | None |  None |   up   |
|  192.168.1.66 |                      | None |  None |   up   |
| 192.168.1.148 |                      | None |  None |   up   |
| 192.168.1.175 |                      | None |  None |   up   |
| 192.168.1.177 |   foobar-ragnar-5490 | None |  None |   up   |
| 192.168.1.182 |                      | None |  None |   up   |
| 192.168.1.235 |                      | None |  None |   up   |
+---------------+----------------------+------+-------+--------+

New hosts since last scan:
192.168.1.175

Removed hosts since last scan:
192.168.1.133

Scan for hosts, 5 passes, on 172.17.0.xxx network

$ nmapper hosts 5 172.17.0.0/24
...

Show configuration parameters

$ nmapper config list

+--------------+-------------+
|          Key |       Value |
+--------------+-------------+
| NUM_ATTEMPTS |           3 |
| BASE_IP_NMAP | 192.168.1.0 |
+--------------+-------------+

Show MAC addresses alias list

$ nmapper alias list

+-------+-------------------+--------------------+
| Index |               Key |              Value |
+-------+-------------------+--------------------+
|     0 | 50:31:D4:8A:10:D6 |        quicksilver |
|     1 | F9:73:75:DB:63:82 |          wolverine |
|     2 | 19:5B:2D:3C:44:74 |        black-widow |
|     3 | 00:07:4F:C5:1E:72 |             router |
|     4 | 18:C9:A2:F9:1E:9A |            ant-man |
|     5 | 5D:21:F0:15:68:1D |          iron-fist |
|     6 | A5:7E:B1:15:04:28 |       juan-tastico |
|     7 | 9C:ED:6B:4C:08:60 |             vision |
+-------+-------------------+--------------------+

Add new MAC address alias

$ nmapper alias add D0:32:87:B1:73:86 loki

+-------+-------------------+--------------------+
| Index |               Key |              Value |
+-------+-------------------+--------------------+
|     0 | 50:31:D4:8A:10:D6 |        quicksilver |
|     1 | F9:73:75:DB:63:82 |          wolverine |
|     2 | 19:5B:2D:3C:44:74 |        black-widow |
|     3 | 00:07:4F:C5:1E:72 |             router |
|     4 | 18:C9:A2:F9:1E:9A |            ant-man |
|     5 | 5D:21:F0:15:68:1D |          iron-fist |
|     6 | A5:7E:B1:15:04:28 |       juan-tastico |
|     7 | 9C:ED:6B:4C:08:60 |             vision |
|     8 | D0:32:87:B1:73:86 |               loki |
+-------+-------------------+--------------------+