Nmap Development mailing list archives
Nmap scanning issue / pings?
From: "Joshua Perrymon" <josh.perrymon () purehacking com>
Date: Wed, 17 May 2006 17:03:30 +1000
Hey Guys, I'm setting up a test network for our lab.. I'm testing outbound scans using Nmap to verify device configuration so on... If I ping 1.1.1.1 for instance, I get a reply.. ( 1.1.1.1 is obfuscated ) C:\Documents and Settings\yo>ping 1.1.1.1 Pinging 1.1.1.1 with 32 bytes of data: Reply from 1.1.1.1: bytes=32 time=359ms TTL=238 If I nmap the device It says ports are filtered..( I know telnet is open) :\Documents and Settings\yo>nmap 1.1.1.1 -p 23 tarting Nmap 3.95 ( http://www.insecure.org/nmap ) at 2006-05-17 16:5 nteresting ports on 1.1.1.1 PORT STATE SERVICE 23/tcp filtered telnet nmap finished: 1 IP address (1 host up) scanned in 0.937 seconds However, if I do "nmap 1.1.1.1 -P0" it comes back as open.. I have tested this on 3 different boxes with the same results.. The network allows ICMP / traceroutes to the host with no problems. C:\Documents and Settings\yo>nmap 1.1.1.1-p 23 -P0 Starting Nmap 3.95 ( http://www.insecure.org/nmap ) at 2006-05-17 16:59 AUS Eastern Standard Ti Interesting ports on 1.1.1.1: PORT STATE SERVICE 23/tcp open telnet Nmap finished: 1 IP address (1 host up) scanned in 0.828 seconds Summary: So when I perform a standard nmap scan to the IP address it returns nothing open only "filtered". I can ping the device and I know telnet is open.. HOWEVER, when I add the -P0 it returns the port as open?? _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev
Current thread:
- Nmap scanning issue / pings? Joshua Perrymon (May 17)
- <Possible follow-ups>
- Re:Nmap scanning issue / pings? Ramy (May 18)
- RE: Nmap scanning issue / pings? Joshua Perrymon (May 18)