Thanks a lot, Helmut. It was really iptables blocking access to the linux machine and spawning the ICMP unreachable host messages.
Actually what happened is that I've just known today that the front-end(GUI) for the firewall in fedora 9 has a bug of not really disabling the firewall when it's disabled from within the GUI.
smbclient acted completely well and could access the windows machine seamlessly when I disabled the iptables service from the command line. I'll handle the issue of these IP filters later.


----- Original Message ----
From: Helmut Hullen
To: samba@lists.samba.org
Sent: Thursday, July 3, 2008 11:55:00 AM
Subject: Re: [Samba] smbclient sending ICMP unreachable destination host(administratively prohibited)

Hallo, Mohammed,

Du meintest am 03.07.08 zum Thema Re: [Samba] smbclient sending ICMP unreachable destination host(administratively prohibited):


>>> 9 0.057171 192.168.1.101 -> 192.168.1.100 ICMP Destination
>>> unreachable (Host administratively prohibited)


>> Why is "ICMP Destination unreachable" - sounds like a silly firewall
>> rule.


> Actually
> my windows box is running windows xp sp2. Besides, I don't understand
> why, in any case, I would need nmbd. My linux box is acting as a
> client, so actually my windows box is responding (as a server) to my
> linux broadcast request.


"firewall" is neither a single device nor is it a single program - it is
a bundle of measures.
On Linux machines "ICMP" may be blocked by "iptables". On windows
machines it may be blocked by "personal firewalls" or by virus scanners.

And there may be other "things".

Viele Gruesse!
Helmut
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