I have been using colasoft capsa to monitor our network traffic at work. I would like the log to show computer names instead of their IP address. is there an easy way to make this happen? a few of the computers show the names but most of them just show up as an IP address. they are all set up the same way as far as naming them goes. I would really appreciate some help. Thank You. I have already read this. but i really don't understand what it is telling me. there is nothing in the host file that says what the computer name is. Some of the Host Names are not being displayed properly. Do you have idea why it only gives us IP addresses and not find the computer names? Colasoft Capsa resolves IP addresses in the following sequences: • Checks the host file for a match address entry, e.g. C:\WINDOWS\system32\drivers\etc\hosts. • Sends a resolution request if a DNS server is configured. • Sends a NetBIOS adapter status request to the IP address being requested, and then parses the IP address to the computer name if it responds with a list of NetBIOS names registered for the adapter. However, if the target host is behind a firewall or NAT, Colasoft Capsa can not get the NetBIOS response packets. In this case, you can try to open the port 137 on the target host 's firewall.