#43 0 host up

[Anonymous]

I have installed nmap and the newest version of winpcap.
Each time I start a scan I get the following message:

Starting nmap V. 3.00 ( www.insecure.org/nmap )
Note: Host seems down. If it is really up, but blocking our ping probes, try -P0
Nmap run completed -- 1 IP address (0 hosts up) scanned in 37 seconds

Could someone tell me how to solve this problem?

[Nobody/Anonymous]

Logged In: NO

they could really be blocking you have you tried some ips
that are gaurenteed to have no serurity.

[Jens Vogt]

Logged In: YES
user_id=545266

Check whether the SimpleTCP service is up on the remote
machine. Otherwise it will refuse the ICMP ping, which is send
before the scan starts. Otherwise use -P0 (no pinging before
scanning) as written in the error message.