spoofing source address and ICMP pinging (Re: Nmap 3.84ALPHA1: Call For Testers)

[Martin Mačok <martin.macok () underground cz>]

When I use -S and -e to spoof IP address Nmap does it correctly for
TCP pinging and scanning but does not spoof the IP with ICMP pinging.
Packet-trace option prints 0.0.0.0 as a source address of ICMP packets
(echo, time or netmask) and sniffing shows the default IP of the
scanning machine (not the spoofed one).

(Looking at source for a while resulted in a headache ... I'm sorry ;-)

Martin Mačok
ICT Security Consultant


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