Re: help regarding IP address spoofing (when using nmap)
Date: Thu, 02 Feb 2023 14:38:46 UTC
It was running as root only... Also, no the address didn't belong to the interface, and I was spoofing it... So is there no way to spoof packet IP addresses ? On Thu, 2 Feb 2023, 18:59 J. Hellenthal, <jhellenthal@dataix.net> wrote: > On Thu, Feb 02, 2023 at 04:19:57PM +0530, Sambuddho Chakravarty wrote: > > 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 > > sudo(8) or su(1) ? > > An address should also be assigned to a interface for it to be bound to. > > -- > The fact that there's a Highway to Hell but only a Stairway to Heaven says > a lot about anticipated traffic volume. >