Nmap Development: Re: Strange 3.59ALPHA3

[eric <eric-list-nmap () catastrophe net>]

On Wed, 2004-08-25 at 00:46:41 -0700, Fyodor proclaimed...

> Would you try 3.59ALPHA4 and see if that helps?  Some hosts were
> taking far longer than they should due to an algorithm problem.  A few
> hosts that take a very long time can really hurt the overall times.
Greetings,

I see alot of this.

Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
ICMP type 0 code 0 packet is only 46 bytes

ICMP type 0 code 0 packet is only 46 bytes

Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Finished block: srtt: -1 rttvar: -1 timeout: 500000 block_tries: 2 up_this_block: 0 down_this_block: 0 group_sz: 35
Got ICMP response to a packet which was not TCP, UDP, or ICMP
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Bogus trynum -32753
Bogus trynum -32753
Bogus trynum -32753
Bogus trynum -32753
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send
Got ICMP error referring to UDP msg which we did not send


This is with 3.59ALPHA4 doing a

sudo nmap -A -T4 -v -d -p '1-65535' -oA prefix -i targets.txt

on FreeBSD 4.10-RELEASE. The targets file contains 5 /25's and one
/24.

If I let it run, it will come back with no hosts up. However, if I
don't use a synscan (i.e. don't prepend the above with `sudo') and
use a connect() scan, it will scan and give results.

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