@black Thanks! That works really well on my N810 - already proved to be useful this evening. I find it to be much easier to use than nmap - but will keep nmap for the quick command line (uninstalled zenmap) check. Questions: 1)In the lower right corner it tells me that there is an update available but I can't seem to find where that may reside. Any ideas? 2) Is this by the way kept in a repo somewhere or just available from their homepage? 3) On the NIT screenshots on your blog you have an icon at top named 'View' which I don't have. It also seems like you can view the devices in a tree-form which I can't.. I got version 1.40. 4) Is there any app that can show me what is happening on a certain port. In particular, can I see what website is being active on 80 for instance? (I tried using netcat but am never able to get any information to show. Maybe my parameters are wrong) Update: Maybe I can use telnet for this. Will try tomorrow. Thanks again, this is by far the best, simple to use network/intrusion detection tool I've seen on the N810. Btw, you should post more on your blog (linked to in your post) there is some very good info there.