Can anyone explain this? Nmap, when run with -n -sP as a non-privalged user results in correct output. But when run as root... it shows every node on the subnet as up.
huh?
[asmith@vnb01 ~]$ nmap -nsP 10.15.59.0/24
Starting Nmap 4.11 (
http://www.insecure.org/nmap/ ) at 2013-05-23 08:36 EDT
Host 10.15.59.1 appears to be up.
Host 10.15.59.8 appears to be up.
Host 10.15.59.9 appears to be up.
Host 10.15.59.12 appears to be up.
Host 10.15.59.13 appears to be up.
Host 10.15.59.14 appears to be up.
Host 10.15.59.201 appears to be up.
Host 10.15.59.205 appears to be up.
Host 10.15.59.207 appears to be up.
Nmap finished: 256 IP addresses (
9 hosts up) scanned in 4.369 seconds
[asmith@vnb01 ~]$ sudo nmap -nsP 10.15.59.0/24 | tail
Host 10.15.59.247 appears to be up.
Host 10.15.59.248 appears to be up.
Host 10.15.59.249 appears to be up.
Host 10.15.59.250 appears to be up.
Host 10.15.59.251 appears to be up.
Host 10.15.59.252 appears to be up.
Host 10.15.59.253 appears to be up.
Host 10.15.59.254 appears to be up.
Host 10.15.59.255 appears to be up.
Nmap finished: 256 IP addresses (
256 hosts up) scanned in 1.836 seconds
[asmith@vnb01 ~]$