Hi all, I have network with few win 95/xp machines and suse 9.3 prof server. On every win client is installed RealPopup (RealPopup homepage: www.realpopup.it). I can send popup message from my xp computer to win 95, and I can get reply on new message addressed from win 95 computer, so looks like popup communication works well. If I use: server:~ # echo "test" | smbclient -M bane added interface ip=192.168.1.1 bcast=192.168.1.255 nmask=255.255.255.0 added interface ip=192.168.2.1 bcast=192.168.2.255 nmask=255.255.255.0 Got a positive name query response from 192.168.2.247 ( 192.168.2.247 ) error connecting to 192.168.2.247:445 (Connection refused) Connected. Type your message, ending it with a Control-D sent 29 bytes server:~ # Computer "bane" receives message. Again everything works well. If I commit: server:~ # nmap -sU zoran Starting nmap 3.81 ( http://www.insecure.org/nmap/ ) at 2006-03-22 09:28 CET Interesting ports on zoran.evident.hr (192.168.1.253): (The 1470 ports scanned but not shown below are in state: closed) PORT STATE SERVICE 123/udp open|filtered ntp 137/udp open|filtered netbios-ns 138/udp open|filtered netbios-dgm 162/udp open|filtered snmptrap 445/udp open|filtered microsoft-ds 500/udp open|filtered isakmp 1900/udp open|filtered UPnP 4500/udp open|filtered sae-urn MAC Address: 00:11:95:5F:F2:70 (Alpha Networks) Nmap finished: 1 IP address (1 host up) scanned in 1.635 seconds server:~ # echo "test" | smbclient -M zoran added interface ip=192.168.1.1 bcast=192.168.1.255 nmask=255.255.255.0 added interface ip=192.168.2.1 bcast=192.168.2.255 nmask=255.255.255.0 Connection to zoran failed server:~ # Message can't get through. On my xp computer I am using Norton Antivirus. I think it uses some kind of firewall. Why my xp machine can't get winpopup message? Zoran