RE: nnamp question

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@xxxxxxxxxxxxxxx> 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@xxxxxxxxxxx
[mailto:owner-freebsd-security@xxxxxxxxxxx] 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@xxxxxxxxx> 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@xxxxxxxxx>

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
_______________________________________________
freebsd-security@xxxxxxxxxxx mailing list

http://lists.freebsd.org/mailman/listinfo/freebsd-security
To unsubscribe, send any mail to
"freebsd-security-unsubscribe@xxxxxxxxxxx"




__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
_______________________________________________
freebsd-security@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-security
To unsubscribe, send any mail to "freebsd-security-unsubscribe@xxxxxxxxxxx"

Relevant Pages

  • RE: nnamp question
    ... -> is a "Ping Scan however, and this does not require root privilages... ... Which seems to indicate that nmap is being told to look for an interface ...
    (FreeBSD-Security)
  • Re: nnamp question
    ... confusion. ... getinterfaces: Failed to open ethernet interface (em0) ... It has 4 interfacres but nmap just sticks with em0. ...
    (FreeBSD-Security)
  • nnamp question
    ... trying to force the nmap working only one interface. ... Do You Yahoo!? ... Mail has the best spam protection around ...
    (FreeBSD-Security)
  • Re: crack traces in /var ?
    ... > no unnecessary service listening to the outside interface. ... You're going to want to run nmap from a foreign host to test yourself. ... ::': proud Debian admin and user ...
    (Debian-User)
  • em(4) interface freezing on 6.2
    ... I have got Dell PowerEdge 750 with on-board emnetwork cards and I ... The interface em0 stops forwarding traffic from time ... Resetting the interface with ifconfig down & up fixes the ... had about 10 interface freezes on em0 interface but none on em1. ...
    (freebsd-stable)