Scanning loopback net on Win-XP

["Gisle Vanem" <giva () bgnett no>]

AFAICS, the winip code doesn't consider the netmask when searching
the iface-table. So this doesn't work:

> nmap -sT -p1-113 127.0.0.2

Starting nmap 3.70 ( http://www.insecure.org/nmap ) at 2004-09-01 15:22 GMT
Unable to determine what interface to route packets through to 127.0.0.2
QUITTING!

------

Not that it matter much. But, scanning 127.0.0.1 is handy. That doesn't
work without -P0 option on Windows because of the SIO_RCVALL option
in rawrecv.c. After disabling the SIO_RCVALL it worked, but this funny thing 
occured:

> nmap -d4 -sP -S127.0.0.1 127.0.0.1
...
SENT (0.0780s) ICMP 128.0.0.1 > 127.0.0.1 Echo request (type=8/code=0) ttl=42 id=7505 iplen=28

Where does the 128.0.0.1 comes from?

--gv


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