Nmap Development mailing list archives
Patch/Feature req.: Multiple ports when doing raw tcp ping
From: "Gabriel L. Somlo" <somlo () acns colostate edu>
Date: Thu, 19 Dec 2002 09:58:43 -0700
Hi, I've been using nmap to check a few of my subnets where firewalls block icmp echoes, and some range of TCP ports. There's lots of them, so using "-P0" is not really an option, but then again I'm missing a lot of machines because some of them are likely to block wahtever TCP port I use to do TCP pings. I'm wondering if it may not be worth allowing for *several* tcp ports to use when doing tcp pings. I've whipped up a patch to 3.10ALPHA6 which implements this. The usage would be something like this: nmap -sS -PT22,80,55555 <aaa.bbb.ccc.0> When doing this as non-root via TCP connect, only the first specified port (22) would be used. However, when doing it as root, raw tcp pings would be sent to all ports, thus improving the chances of correctly predicting whether any individual host is up or down. Let me know what you guys think about this... Thanks, Gabriel -- ----------------------------------------------------------------------- Gabriel L. Somlo Academic Computing & Networking Services Colorado State University Tel: (970)297-3707 Cell: (970)567-1017 601 Howes St., Room 612A Fax: (970)491-1958 Fort Collins, CO 80523-2028 e-mail: somlo () acns colostate edu -----------------------------------------------------------------------
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nmap-3.10ALPHA6-multipletcp.diff
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Current thread:
- Patch/Feature req.: Multiple ports when doing raw tcp ping Gabriel L. Somlo (Dec 19)
- Re: Patch/Feature req.: Multiple ports when doing raw tcp ping R Anderson (Dec 19)
- Re: Patch/Feature req.: Multiple ports when doing raw tcp ping Fyodor (Dec 24)