1st Net Scanner is a very useful IP Finder and Port Finder. It builds IP finder, port finder, IP scanner, port scanner and IP tracer, IP tracker, IP camera in one software. It can find IP address, search IP address, trace IP address and scan IP address. And it also can find port, search port and scan port. It's easy and fast!
1st Net Scanner allows for testing whether a remote computer is alive with three types: ICMP, SYN and UDP and testing whether a TCP port is being listened with two types: CONNECT and SYN.
1st Net Scanner reverse lookup IP address into hostname and read responses from connected TCP Port.
1st Net Scanner allows for testing the UDP port's status based on "ICMP Destination Port Unreachable" message. Because the Linux kernel limits destination unreachable message generation to 80 per 4 seconds, with a 1/4 second penalty if that is exceeded, the speed or the number of ports should be limited in this situation.
1st Net Scanner can obtains all Routers from the local host to the remote host with three types: ICMP, SYN and UDP. We suggest Trace Route and Ping use the same type.