problem on nmap.

bruse · 08-12-2005, 05:28 AM

mandrake 10.0
nmap dpoing wrong at some time.

see the last two output they are taken at the same time.
but different ouput of 10.1.1.50

[student@localhost student]$ nmap -sP 10.1.1.*

Starting nmap 3.50 ( http://www.insecure.org/nmap/ ) at 2005-08-12 15:49 IST
Host 10.1.1.7 appears to be up.
Host 10.1.1.34 appears to be up.
Host 10.1.1.35 appears to be up.
Host 10.1.1.63 appears to be up.
Host 10.1.1.64 appears to be up.
Host 10.1.1.71 appears to be up.
Host 10.1.1.75 appears to be up.
Host 10.1.1.100 appears to be up.
Nmap run completed -- 256 IP addresses (8 hosts up) scanned in 7.376 seconds
[student@localhost student]$ nmap -sP 10.1.1.*

Starting nmap 3.50 ( http://www.insecure.org/nmap/ ) at 2005-08-12 15:50 IST
Host 10.1.1.7 appears to be up.
Host 10.1.1.34 appears to be up.
Host 10.1.1.35 appears to be up.
Host 10.1.1.50 appears to be up.-------------------------->extra at the IP
Host 10.1.1.63 appears to be up.
Host 10.1.1.64 appears to be up.
Host 10.1.1.71 appears to be up.
Host 10.1.1.75 appears to be up.
Host 10.1.1.100 appears to be up.
Nmap run completed -- 256 IP addresses (9 hosts up) scanned in 9.088 seconds
[student@localhost student]$

Ephracis · 08-12-2005, 05:37 AM

Do a ping 10.1.1.50, the host may be unstable so check if it responds every time. If you get some time-outs: there's your problem.