Re: "dnet: Failed to open device" errors on AIX, as root

[Ben Lentz <ben.lentz () gmail com>]

On 11/11/12 11:44 AM, David Fifield wrote:
> On Sat, Nov 10, 2012 at 10:31:52AM -0500, Ben Lentz wrote:
> > I have downloaded and compiled Nmap 6.01 on AIX. Any time I perform
> > any type of scan, as root, on any IP address on the interface's
> > local network, I get the classic "dnet: Failed to open device"
> > error.
> >
> > However, when I perform a scan of an IP or network that's off
> > network, it works just fine.
> What's the output of these commands?
>         nmap --iflist
>         nmap --route-dst 10.0.17.1
>         nmap --route-dst 10.0.18.1
>
> David Fifield
W/root:

$ sudo nmap --iflist

Starting Nmap 6.01 ( http://nmap.org ) at 2012-11-11 12:10 EST
************************INTERFACES************************
DEV (SHORT) IP/MASK       TYPE     UP MTU   MAC
en2 (en2)   10.0.17.14/24 ethernet up 1500  9E:8B:F7:E6:00:0B
lo0 (lo0)   127.0.0.1/8   loopback up 16896
lo0 (lo0)   ::1/0         loopback up 16896

**************************ROUTES**************************
DST/MASK       DEV GATEWAY
10.0.17.255/32 en2 10.0.17.14
10.0.17.0/32   en2 10.0.17.14
10.0.17.14/32  lo0 127.0.0.1
10.0.17.0/24   en2 10.0.17.14
10.0.17.0/24   en2 10.0.17.14
127.0.0.0/8    lo0 127.0.0.1
0.0.0.0/0      en2 10.0.17.1

$ sudo nmap --route-dst 10.0.17.1
10.0.17.1
en2 en2 srcaddr 10.0.17.14 direct

Starting Nmap 6.01 ( http://nmap.org ) at 2012-11-11 12:10 EST
WARNING: No targets were specified, so 0 hosts scanned.
Nmap done: 0 IP addresses (0 hosts up) scanned in 0.11 seconds
$ sudo nmap --route-dst 10.0.18.1
10.0.18.1
en2 en2 srcaddr 10.0.17.14 nexthop 10.0.17.1

Starting Nmap 6.01 ( http://nmap.org ) at 2012-11-11 12:10 EST
WARNING: No targets were specified, so 0 hosts scanned.
Nmap done: 0 IP addresses (0 hosts up) scanned in 0.07 seconds
$

WO/root:

$ nmap --iflist

Starting Nmap 6.01 ( http://nmap.org ) at 2012-11-11 12:13 EST
************************INTERFACES************************
DEV (SHORT) IP/MASK       TYPE     UP MTU   MAC
en2 (en2)   10.0.17.14/24 ethernet up 1500  9E:8B:F7:E6:00:0B
lo0 (lo0)   127.0.0.1/8   loopback up 16896
lo0 (lo0)   ::1/0         loopback up 16896

ROUTES: NONE FOUND(!)
$ nmap --route-dst 10.0.17.1
10.0.17.1
route_dst_generic: Failed to obtain system routes: getsysroutes_dnet: 
route_open() failed
$ nmap --route-dst 10.0.18.1
10.0.18.1
route_dst_generic: Failed to obtain system routes: getsysroutes_dnet: 
route_open() failed
$
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