Nmap Development mailing list archives
Re: zenmap doesn't scan my user mode linux image
From: David Fifield <david () bamsoftware com>
Date: Thu, 11 Mar 2010 13:13:20 -0700
On Tue, Mar 09, 2010 at 09:41:12AM -0700, David Fifield wrote:
On Mon, Mar 08, 2010 at 10:34:32PM +0100, Toralf Förster wrote:David Fifield wrote at 18:49:00On Sun, Mar 07, 2010 at 10:09:12AM +0100, Toralf Förster wrote:And what is the output using your original command line? (Without --unprivileged.)n22 ~ # nmap -A n22_uml Starting Nmap 5.21 ( http://nmap.org ) at 2010-03-07 10:07 CET Note: Host seems down. If it is really up, but blocking our ping probes, try - PN Nmap done: 1 IP address (0 hosts up) scanned in 0.63 secondsIt looks like maybe the User Mode Linux isn't responding to ARP ping. Please run these commands and send their output. # nmap --send-ip -A n22_uml # nmap -PN -A n22_uml # nmap --iflist David Fifieldtfoerste@n22 ~ $ su - Password: n22 ~ # nmap --send-ip -A n22_uml Starting Nmap 5.21 ( http://nmap.org ) at 2010-03-08 22:32 CET Note: Host seems down. If it is really up, but blocking our ping probes, try - PN Nmap done: 1 IP address (0 hosts up) scanned in 3.50 seconds n22 ~ # nmap -PN -A n22_uml Starting Nmap 5.21 ( http://nmap.org ) at 2010-03-08 22:32 CET Nmap done: 1 IP address (0 hosts up) scanned in 0.59 seconds n22 ~ # nmap --iflist Starting Nmap 5.21 ( http://nmap.org ) at 2010-03-08 22:32 CET ************************INTERFACES************************ DEV (SHORT) IP/MASK TYPE UP MAC lo (lo) 127.0.0.1/8 loopback up eth0 (eth0) 192.168.0.254/24 ethernet up 00:24:7E:11:75:C4 ppp0 (ppp0) 85.177.125.95/32 point2point up tap0 (tap0) 192.168.0.253/32 ethernet up A2:56:17:FF:0C:5F **************************ROUTES************************** DST/MASK DEV GATEWAY 213.191.76.23/32 ppp0 192.168.0.50/32 tap0 192.168.0.0/0 eth0 127.0.0.0/0 lo 0.0.0.0/0 ppp0 213.191.76.23I think this is the same problem as "Nmap bug - Doesn't folow static route" http://seclists.org/nmap-dev/2010/q1/685 You must be scanning 192.168.0.253. That address happens to be inside the netmask for the eth0 device, so Nmap is choosing that device, without considering the more specific entry for tap0 that comes later. There's no solution for it yet. As a workaround, try changing the IP address of the User Mode Linux to something outside of the netmask of eth0, like 192.168.1.253.
If you are building from Subversion, please update to at least r16970 and try again. The routing problem should be fixed. See http://seclists.org/nmap-dev/2010/q1/845. David Fifield _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://seclists.org/nmap-dev/
Current thread:
- Re: zenmap doesn't scan my user mode linux image, (continued)
- Re: zenmap doesn't scan my user mode linux image Toralf Förster (Mar 07)
- Re: zenmap doesn't scan my user mode linux image David Fifield (Mar 08)
- Re: zenmap doesn't scan my user mode linux image Giuseppe D'Ippolito (Mar 08)
- Re: zenmap doesn't scan my user mode linux image Toralf Förster (Mar 09)
- Re: zenmap doesn't scan my user mode linux image David Fifield (Mar 09)
- Re: zenmap doesn't scan my user mode linux image Toralf Förster (Mar 10)
- Re: zenmap doesn't scan my user mode linux image David Fifield (Mar 09)
- Re: zenmap doesn't scan my user mode linux image Toralf Förster (Mar 11)
- Re: zenmap doesn't scan my user mode linux image Toralf Förster (Mar 11)
- Re: zenmap doesn't scan my user mode linux image Toralf Förster (Mar 11)
- Re: zenmap doesn't scan my user mode linux image David Fifield (Mar 11)
- Re: zenmap doesn't scan my user mode linux image Toralf Förster (Mar 11)