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can't print over vlan

Posted on 2013-05-13
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Last Modified: 2013-07-08
Can anyone help me figure out what's missing? We have a vlan setup and are not able to print from one network to the other. I am able to ping the desired address but cannot print to a network printer. The address of the printer is 192.168.100.100 and my pc's ip is. 192.168.168.23. And I am able map drives across the two networks also. So any ideas?
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Question by:johnpatbullock
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7 Comments
 
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Expert Comment

by:Skyler Kincaid
ID: 39163575
Are you able to map the printer from the PC to the other subnet using the IP?
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Expert Comment

by:Mohammed Rahman
ID: 39163604
Ping the IP address of the printer. If you are able to ping, then this might be an issue with mapping or printer setting. Need to check printer settings from Control Panel.

If not able to ping the printer, then the printer is experiencing network issues.

"I am able to ping the desired address but cannot print to a network printer." If I assume that you are able to ping the printer; make sure that the printer is set to default.

If its already set to default, try remove and add it again via the Add a printer wizard.

Make sure that the TCP/IP port is checked under printer properties "ports" tab.
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by:Bokis
ID: 39163844
Please answer the following questions to clarify:-
a) What is the gateway for 192.168.168.23? What Device is the gateway?
b) What is the gateway for 192.168.100.100? What device is the gateway? same as in (a)?
c) Can you print to the printer from any other device on network 192.168.100.0? I assumed a /24 for all your networks.
d) Is the printer installed locally (as a network printer) on the devices OR there is a computer/server serving as "Print Server"?
e) Do you have a diagram depicting your setup? Just a sketch would do.
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Expert Comment

by:172pilotSteve
ID: 39164401
When you say you can ping from one network to the other, are you pinging the actual printer?  If not, it could be that the printer doesn't have a default gateway configured, so even though it's working on that subnet, it can't get back to you.   Can you do:
telnet <printerip> 515

Port 515 is the LPR port, used by TCPIP printing - if you can TELNET to port 515 on the printer you should be fine, although if the printer is actually on a Windows box with the printer shared, then the mapping a drive is a better test.

Also, I second the question about what is doing the routing.  

Are you doing just plain routing, or is there a NAT involved?  Any firewall / ACLs in that router?
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LVL 7

Expert Comment

by:eerwalters
ID: 39167663
As most have mentioned, the default gateway setting on the printer is probably the best thing to check first.

Next would be:
 Can you connect to the printer via a web browser?   http://PrinterIP
 Does the printer have any restrictions enabled for connectivity/protocols?
 Is there a firewall between the VLANs?
 Did the previously suggested Telnet test work?
 What printer make/model are you using?
 

 Re: Telnet to port 515
    That is good for troubleshooting, but it is not the default port used for Windows standard TCP/IP printing. (That is port 9100.)
    Thus, if there is a firewall between the VLANs and you test port 515 successfully, you may still not be able to print using standard TCP/IP printing, ...unless you change the Windows printer's port setting to use LPR.  (No offense intended to 172pilotSteve, just trying to qualify the results of that step to cover the troubleshooting bases.)
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Accepted Solution

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johnpatbullock earned 0 total points
ID: 39298463
It turns out that it wasn't a networking issue after all.  Apparently, these printers do not support printing from an foreign subnet.  As a workaround, we simply shared the printer from a server that is on the same subnet as the printer.
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Author Closing Comment

by:johnpatbullock
ID: 39306619
According to the sales rep, the Canon ir5050 MFP in question does not support what we were trying to do, so we used this workaround to resolve this issue.
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