I'm trying to find a free IP address on a network that doesn't use DHCP. I decided to run an intense scan using Nmap from 10.0.5.0 to 10.0.5.255. (I know this isn't the best way to find an unused IP address, but it's good enough for this scenario. I am open to suggestions though.) I'm on a different subnet, and I'm not 100% sure what my scan is going through (firewalls, NAT, etc).
Every single IP address is showing me port 113/tcp is closed, including unused IPs/dead hosts. This is making my results ugly and a pain to pick through.
- Is there a way to skip scanning this port in Nmap?
- Why is this shown even on dead hosts?