nnamp question

[gahn]

Thanks Tim:

well, the real interface is rl0...:) sorry for the
confusion.

the problem is that the nmap seems to have mind of its
own and stick with em0:

sis# nmap -e rl0 -v -sP 192.168.126.0/23

Starting Nmap 3.95 ( http://www.insecure.org/nmap/ )
at 2006-02-08 12:01 CST
getinterfaces: Failed to open ethernet interface (em0)
QUITTING!

It has 4 interfacres but nmap just sticks with em0. i
am lost ...

Thanks



--- "Arneaud, Tim" <TArneaud at verisign.com.au> wrote:

> 
> nmap -e fx0 -v -sP 192.168.128.0/23
> 
> -> is a "Ping Scan however, and this does not
> require root privilages...
> 
> -sP (Ping Scan)
> -v (Increase verbosity level)
> -e <iface>: Use specified interface 
> 
> Error:
> > getinterfaces: Failed to open ethernet interface
> (el0) QUITTING!
> 
> Which seems to indicate that nmap is being told to
> look for an interface
> that can't/doesn't exist...
> el is an old 3Com ISA card
> 
> You mentioned using ethernet device "fx0" - did you
> mean "fxp0", the
> Intel Intel EtherExpress Pro/100 style cards?
> ...or you may have already discovered this ;)
> 
> It might be worth checking exactly what interfaces
> and hardware you do
> have on this system...
> ...and you could also try running the command
> without specifying the
> interface directly and rely on the routing table to
> sort it out. Nmap
> does not require the "-e" flag to run a "Ping Scan".
> 
> nmap -v -sP 192.168.128.0/23
> 
> Hope this helps!
> 
> Kind Regards,
> Tim Arneaud
> 
> 
> 
> -----Original Message-----
> From: owner-freebsd-security at freebsd.org
> [mailto:owner-freebsd-security at freebsd.org] On
> Behalf Of Pietro Cerutti
> Sent: Sunday, 5 February 2006 9:42 PM
> To: gahn
> Cc: freebsd security
> Subject: Re: nnamp question
> 
> On 2/4/06, gahn <ipfreak at yahoo.com> wrote:
> > Hi:
> 
> Hi,
> 
> > nmap -e fx0 -v -sP 192.168.128.0/23
> >
> > Starting Nmap 3.95 ( http://www.insecure.org/nmap/
> ) at 2006-02-04 
> > 14:04 CST
> > getinterfaces: Failed to open ethernet interface
> (el0) QUITTING!
> >
> > What did I do wrong?
> 
> Are you running nmap as root? If not, you should.
> Only root can put
> interfaces in promiscuous mode.
> 
> >
> > Thanks
> 
> Hope this helps,
> regards
> 
> --
> Pietro Cerutti
> <pietro.cerutti at gmail.com>
> 
>    Non lasciar calpestare i TUOI diritti!
>    Don't let 'em take YOUR rights!
> 
>    NO al Trusted Computing!
>    Say NO to Trusted Computing!
> 
>    www.no1984.org
>    www.againsttcpa.com
> _______________________________________________
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>
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> 


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