Re: help regarding IP address spoofing (when using nmap)
Date: Thu, 02 Feb 2023 10:49:57 UTC
Hi All I am a relatively newbie to FreeBSD (earlier was running Linux). I am running FreeBSD 13.1. I am trying to run nmap with source IP address spoofing (for some academic purposes). It works fine with Linux but on FreeBSD I get the following error: # nmap -e re0 -S 192.168.17.92 -sS 143.110.249.18 -p 8080 -Pn Starting Nmap 7.93 ( https://nmap.org ) at 2023-02-02 16:04 IST NSOCK ERROR [0.0170s] mksock_bind_addr(): Bind to 192.168.17.92:0 failed (IOD #1): Can't assign requested address (49) NSOCK ERROR [0.0170s] mksock_bind_addr(): Bind to 192.168.17.92:0 failed (IOD #2): Can't assign requested address (49) It works fine without the source spoofing but doesn't when I use it. I can however use my own machine's source IP address with the '-S' option. -- best, sambuddho