Re: nping command line parsing: set source IP address

[David Fifield <david () bamsoftware com>]

On Fri, May 17, 2013 at 04:36:48PM +0000, Perry Hooker wrote:
> Yes, I built Nping from source.  "make distclean" followed by rebuild
> had no effect.  FWIW, this behavior also manifests on our servers
> running RHEL Server release 6.2 Beta (Santiago).  Please let me know
> what details I can provide to help reproduce this behavior.

It might help if you can find another machine that does not exhibit the
behavior, and see what's different about it. I still suspect something
in the local configuration. This is the output I see with 0.6.25 on
Debian 7:

$ ./nping -c 1 -S 192.168.1.1 127.0.0.1

Starting Nping 0.6.25 ( http://nmap.org/nping ) at 2013-05-17 10:46 PDT
SENT (0.0017s) Starting TCP Handshake > 127.0.0.1:80
RECV (0.0018s) Possible TCP RST received from 127.0.0.1:80 --> Connection refused

Max rtt: N/A | Min rtt: N/A | Avg rtt: N/A
TCP connection attempts: 1 | Successful connections: 0 | Failed: 1 (100.00%)
Tx time: 0.00121s | Tx bytes/s: 66115.70 | Tx pkts/s: 826.45
Rx time: 0.00131s | Rx bytes/s: 0.00 | Rx pkts/s: 0.00
Nping done: 1 IP address pinged in 0.00 seconds

$ ./nping -c 1 -S random 127.0.0.1

Starting Nping 0.6.25 ( http://nmap.org/nping ) at 2013-05-17 10:46 PDT
SENT (0.0016s) Starting TCP Handshake > 127.0.0.1:80
RECV (0.0017s) Possible TCP RST received from 127.0.0.1:80 --> Connection refused

Max rtt: N/A | Min rtt: N/A | Avg rtt: N/A
TCP connection attempts: 1 | Successful connections: 0 | Failed: 1 (100.00%)
Tx time: 0.00123s | Tx bytes/s: 64935.06 | Tx pkts/s: 811.69
Rx time: 0.00128s | Rx bytes/s: 0.00 | Rx pkts/s: 0.00
Nping done: 1 IP address pinged in 0.00 seconds

$ sudo ./nping -c 1 -S 192.168.1.1 127.0.0.1

Starting Nping 0.6.25 ( http://nmap.org/nping ) at 2013-05-17 10:46 PDT
SENT (0.0602s) ICMP 192.168.1.1 > 127.0.0.1 Echo request (type=8/code=0) ttl=64 id=11543 iplen=28
nping_event_handler(): READ-PCAP killed: Resource temporarily unavailable

Max rtt: N/A | Min rtt: N/A | Avg rtt: N/A
Raw packets sent: 1 (28B) | Rcvd: 0 (0B) | Lost: 1 (100.00%)
Tx time: 0.00122s | Tx bytes/s: 23007.40 | Tx pkts/s: 821.69
Rx time: 1.00120s | Rx bytes/s: 0.00 | Rx pkts/s: 0.00
Nping done: 1 IP address pinged in 1.06 seconds

$ sudo ./nping -c 1 -S random 127.0.0.1

Starting Nping 0.6.25 ( http://nmap.org/nping ) at 2013-05-17 10:46 PDT
SENT (0.0586s) ICMP 88.131.55.162 > 127.0.0.1 Echo request (type=8/code=0) ttl=64 id=54569 iplen=28
nping_event_handler(): READ-PCAP killed: Resource temporarily unavailable

Max rtt: N/A | Min rtt: N/A | Avg rtt: N/A
Raw packets sent: 1 (28B) | Rcvd: 0 (0B) | Lost: 1 (100.00%)
Tx time: 0.00127s | Tx bytes/s: 22134.39 | Tx pkts/s: 790.51
Rx time: 1.00075s | Rx bytes/s: 0.00 | Rx pkts/s: 0.00
Nping done: 1 IP address pinged in 1.06 seconds

David Fifield
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