[Cooker] [Bug 6053] [drakxtools] problem in detection routine for network printer

[[till]]

http://qa.mandrakesoft.com/show_bug.cgi?id=6053





------- Additional Comments From till@mandrakesoft.com  2003-10-30 14:20 -------
Perhaps your printers do not listen on port 9100 or any other port which
printerdrake is checking. Please do a simple

nmap 192.168.1.40

and

nmap 192.168.1.30

and post the output here. Then we can see whether your printers use another port
or the TCP/Socket protocol at all. Note that printers using only the LPD
protocol are not auto-detected.


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------- Reminder: -------
assigned_to: install@mandrakesoft.com
status: UNCONFIRMED
creation_date: 
description: 
I've got 2 network printers, a Konica 7830n ( 192.168.1.40 ) and a Lanier 5227 
( 192.168.1.30 ) with static IP. 
I noticed that when using autodetection, printerdrake is unable to detect them. I have 
to specify the IP adress manually, the same applies also sometimes for diskdrake 
concerning NFS server detection. 
 
So I dig a little in /usr/lib/libDrakX/printer/detect.pm 
 
Note : my broadcast is 192.168.1.255. 
 
1°/ Is the detection routine ( getIPsInLocalNetworks() ) is very right ? 
 
-> If I cut & paste it on shell, I have this : 
 
[root@admin3 admin]# ping -w 1 -b -n 192.168.1.255 | cut -f 4 -d ' ' | 
sed s/:// | egrep '^[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+' | uniq | sort 
WARNING: pinging broadcast address 
 
-> If I omit the \\ for \ 
 
[root@admin3 admin]# ping -w 1 -b -n 192.168.1.255 | cut -f 4 -d ' ' | 
sed s/:// | egrep '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | uniq | sort 
WARNING: pinging broadcast address 
192.168.1.10 
192.168.1.101 
192.168.1.102 
192.168.1.103 
192.168.1.104 
192.168.1.105 
192.168.1.151 
192.168.1.152 
192.168.1.153 
192.168.1.154 
192.168.1.160 
192.168.1.254 
192.168.1.40 
 
-> As the warning is annoying and should not appear : 
 
[root@admin3 admin]# ping -w 1 -b -n 192.168.1.255 2>/dev/null | cut -f 
4 -d ' ' | sed s/:// | egrep '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | uniq | 
sort 
192.168.1.10 
192.168.1.101 
192.168.1.102 
192.168.1.103 
192.168.1.104 
192.168.1.105 
192.168.1.151 
192.168.1.152 
192.168.1.153 
192.168.1.154 
192.168.1.160 
192.168.1.254 
192.168.1.40 
 
 
-> So this is fine. Now what's about the routine which scan the differents host 
( whatNetPrinter ) ? 
nmap -r -P0 --host_timeout 400 --initial_rtt_timeout 200 -p 9100 
192.168.1.40 
 
First time I test I had nothing and nmap failed with "skipping host 
192.168.1.40 due to host timeout" . When I removed --host_timeout 400, 
or If I do it a second time it works. So maybe host_timeout value should 
be increase ... Don't forget it's milliseconds ! 
 
But even by increasing these value, printerdrake still don't give me the 
list of network printer printers in my LAN. So what's wrong ? There's 
must be something wrong after ... 
I expect that printerdrake could give me the list of network printers in 
my LAN if I check autodetect printers and select TCP/IP/Socket printers 
... And from this list I choose a printer and then configure it ... AM