Need Tool to Discover Ubiquiti Antennas on Different IP Range in LAN

Networking & Firewalls
1

Hello ,

I have a network with many Ubiquiti antennas. Unfortunately, we lost the documentation along with the IP addresses of the antennas. I need to add a new antenna and I’m looking for a tool that can help me discover all the Ubiquiti antennas on the local network, similar to SADP for Hikvision. The antennas are not in the same IP range as my LAN; they are connected to a trunk port on Cisco switches.

I tried WiFiman, but it seems to only work for devices on the same LAN.

Any help would be greatly appreciated!

Thank you!

2

You could dig up all the MAC prefixes that match Ubiquiti MAC_Find: Search results for "Ubiquiti" (Vendor/Ethernet/Bluetooth MAC Address Lookup and Search) from the DHCP tables or use a a tool such as https://www.runzero.com/

3

already knows to address through the ARP table but cannot find the IPs

4

Take a look at the arp-scan manual.

Start by scanning the smallest plausible subnets first and go up from there.

# assuming debian/ubuntu
apt install arp-scan

# scan configured interface & subnet
arp-scan --localnet

# scan particular range on specified interface
arp-scan --interface=eth0 192.168.0.0/24

Just just over 4 minutes to scan a /16 here, you’ve been warned :grin:.

Net Bits Block Size
/24 256
/20 4096
/16 65K
/12 1M
/8 16M
5

Here is a free tool I use a lot for this kind of thing:

6

Hello,

Thanks for helping and providing so much insight into my problem.

I finally solved it by unplugging the cable that goes from one of the PoE injector antennas to the switch port, connecting my PC to the LAN port of Poe injector, and scanning the LAN’s IP range (192.168.1.0).

The antennas were configured with the same IP ranges as other devices on the local network. A network scan can discover them using Advanced IP Scanner, as suggested. Each antenna is connected to a trunk port, forwarding every VLAN (CCTV, Prod), but it won’t show the IP address of the device connected to it.

Once connected to the LAN port of one of the antennas, I was able to discover every antenna. However, only the antennas were discovered—even if other devices that the antennas forward are in the same IP range, they won’t be detected.

My new problem is that I was able to add the new antenna to the PtMtP network, and it is connected to an unmanaged switch port with 2 cameras connected to it. However, the new antenna can’t forward devices as the others do (IP cameras in the 10.0.0.X range and Prod devices in the 192.168.1.X range).

I’m unsure if this is because it’s the only one not connected to a trunk port or because the switch does not handle VLANs.