Hey everybody, we need to start scanning for Macs on our subnets via port 3283. And we're not quite sure how to achieve this on the Mac we have ARD installed on. Its an iMac with 10.14.6 installed. ARD version 3.9.3. Any insight would be appreciated.
Launch ARD and in the left hand side bar click on 'Scanner'. From the pop-up menu on the right select Network Range. Type in the subnets you're interested in. Any Macs (as well as everything else, PCs, Printers etc) will show below.
A good way of finding Macs on network with multiple subnets is to 'sit' on each subnet in turn by connecting to a network port in the same office/classroom as the Macs and using the Bonjour Scanner instead. You'll see it listed on the pop-up menu. This will eliminate most if not all PCs from the scan results.
Launch ARD and in the left hand side bar click on 'Scanner'. From the pop-up menu on the right select Network Range. Type in the subnets you're interested in. Any Macs (as well as everything else, PCs, Printers etc) will show below.
A good way of finding Macs on network with multiple subnets is to 'sit' on each subnet in turn by connecting to a network port in the same office/classroom as the Macs and using the Bonjour Scanner instead. You'll see it listed on the pop-up menu. This will eliminate most if not all PCs from the scan results.
I'm fairly certain ARD uses both ports (and any other port it needs) automatically. Unless someone else knows there does not seem to be a way in ARD to specifically use a desired port. Perhaps 'arp' or 'netstat' via Terminal might help? If you're having trouble it's possible your network admin is allowing traffic from one VLAN to another on certain ports and 3283 is not one of them? In which case you should ask if that's the case and if it is, open whatever ports you need for you.
I suggested the other method of scanning for Macs using Bonjour on whichever VLAN (or VLANs) the Macs are on as this gets around having that potentially non-productive conversation.
In my experience some (actually a lot) network admins are 'touchy' about opening certain ports. In some situations with good reason. If you were not aware Apple have a full list of the ports it uses here:
https://support.apple.com/en-us/HT202944
Good luck
Thanks Antonio! We know how to scan, we just need to know how to make sure we are scanning for Macs via port 3283?
Any way of knowing this?
Scan for Macs on Port 3283
