I have a map with only switches added and want to know if there is a way to interrogate them to see what devices are connected to what port by IP address.

I know there are plenty of tools out there, but I'm hoping I can acheive the same with Dude

It depends on the statistic your switch provides, if there is such information provided by SNMP (for example) you can get it for monitoring.

When I tested with some software it would show me port numbers and resolved IP/Domain name connected, so I guess it's possible but simply walking the units delivers nothing.

Ok, I'm still looking how I can track what domain PC/IP address is mapped to which switch port?

We are using this to track computer to switch port mapping. It is only good for Cisco devices...
http://sourceforge.net/projects/switchmap/

Yes I saw that but was put off by the amount of configuration so I've tried this today and it works a treat.

http://sourceforge.net/projects/switchminer/

The sample command line I use is this, which also maps all the chlid switches

sm -s 10.0.0.3 -c public -r 10.0.0.21 -e public -l

Where 10.0.0.3 is the parent switch and 10.0.0.21 is our DNS server

Yeah but you might find the search and web access to be useful.

There is another port tracker that gives a nice map based on snmp location info on sourceforge as well. Even more complex to setup since it uses both web and database.

For folks who setup the program I linked 2 messages ago... when you setup your cron jobs only schedule collections for times/days you know when most your computers are online. Otherwise the saved devices will fluctuate wildly.

Do you think it's something that is likely to be added to DUDE at some point, it would be an extremely useful facility?

Yes