[Discuss] CUPS Remote Printer

[Ray L. Bon]

On Sat, 15 Mar 2008 13:50:11 -0700
Murray Strome <wmstrome at shaw.ca> wrote:

> My main printer is an Okidata OL600e B&W LED printer which is
> physically connected to my wife's printer.  Through new installs,
> upgrades, etc. I have never really had to do much to have it
> accessible to all my computers.  However, since re-installing Kubuntu
> on my wife's computer, I cannot no longer access it.  I imagine that
> it has something to do with my ability to access her computer. I have
> not changed any settings in my routers. The simplified configuration
> is:
> 
> 
>     --------                   ---------------
> ----------------- | router|------------------|  Computer 1
> |----------|Okidata Printer| |       |----
> ---------------          ----------------- --------     |
>                 |       
>            --------------      ---------------
>            |  router #2 |------|  Computer 2 |
>            --------------      ---------------
>                              
> 
> Of course, there are other computers connected to router & router 2,
> and other printers on both Computer 1 and Computer 2. The first
> router is connected to a cable modem box, then to Shaw cable.
> 
> All the computers used DHCP to get their addresses, as do the
> routers. I have changed Computer 1 to fixed address (one the router
> originally assigned to it), but that did not make any difference.
> 
>  From Computer 2, I can ping router or Computer 1 (or anything else 
> connected on that router) from Computer 2. I can ping router 2 from 
> Computer 1 using the address "leased" to it by router, but I cannot
> ping to Computer 2 from Computer 1.  I can connect to the internet
> from everywhere without any problem.  If I try to add a network CUPS
> printer in Computer 2, it cannot access Port 631 on the address
> assigned to Computer 1 by router.
> 
> As mentioned, I really did not have to do anything after previous 
> reinstallations to have access to all the printers on all the
> computers from every computer.  I don't know what has changed. I seem
> to remember some security advice a while ago which recommended that
> UPNP should be disabled, which I did on both routers, but CUPS was
> still working OK long after I did that.
> 
> Any suggestions?
> 
> Thanks.
> 
> Murray
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could it be as simple as sharing the printer?