Nmap Development mailing list archives
Re: Fragscan not working?
From: Ron <ron () skullsecurity net>
Date: Wed, 7 Apr 2010 18:45:06 -0500
From further tests, I can tell that -f works fine, but that something on my network was blocking it (it seems like it was the switch, because I wasn't going through the firewall).
My bad, false alarm :) And for what it's worth, a great backup way to test is using hping3 -f, which Brandon suggested to me. On Wed, 7 Apr 2010 09:30:01 -0500 Ron <ron () skullsecurity net> wrote:
My friend reported fragscan (-f) not working on the latest version of Nmap. I tried a couple experiments (both against hosts on the local network and off the local network) and got absolutely no responses (ie, 'no ports open'). $ sudo ./nmap -f x.x.x.250 Starting Nmap 5.30BETA1 ( http://nmap.org ) at 2010-04-07 09:39 CDT Nmap scan report for x.x.x.250 Host is up (0.00045s latency). All 1000 scanned ports on x.x.x.250 are filtered MAC Address: 00:0B:DB:94:12:58 (Dell ESG Pcba Test) Nmap done: 1 IP address (1 host up) scanned in 21.59 seconds ron@IPCNESSUS02P:~/tools/nmap$ sudo ./nmap x.x.x.250 Starting Nmap 5.30BETA1 ( http://nmap.org ) at 2010-04-07 09:40 CDT Nmap scan report for x.x.x.250 Host is up (0.00034s latency). Not shown: 990 closed ports PORT STATE SERVICE 135/tcp open msrpc 139/tcp open netbios-ssn 445/tcp open microsoft-ds 1025/tcp open NFS-or-IIS 2161/tcp open apc-agent 3052/tcp open powerchute 3389/tcp open ms-term-serv 13722/tcp open netbackup 13782/tcp open netbackup 13783/tcp open netbackup MAC Address: 00:0B:DB:94:12:58 (Dell ESG Pcba Test) -- Ron Bowes http://www.skullsecurity.org http://www.twitter.com/iagox86
-- Ron Bowes http://www.skullsecurity.org http://www.twitter.com/iagox86
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Current thread:
- Fragscan not working? Ron (Apr 07)
- Re: Fragscan not working? David Fifield (Apr 07)
- Re: Fragscan not working? Ron (Apr 07)
- Re: Fragscan not working? Brandon Enright (Apr 07)
- Re: Fragscan not working? Michael Pattrick (Apr 07)
- Re: Fragscan not working? Kris Katterjohn (Apr 07)
- Re: Fragscan not working? Fyodor (Apr 07)
- Re: Fragscan not working? Michael Pattrick (Apr 07)
- Re: Fragscan not working? Fyodor (Apr 08)
- Re: Fragscan not working? Ron (Apr 07)
- Re: Fragscan not working? David Fifield (Apr 07)
- <Possible follow-ups>
- RE: Fragscan not working? Derek (Apr 09)