Problem with remote printing through a two ethernet card machine to a local subnet

[Greg Ennis]

If this is not a bug please accept my apologies.  I have been posting inquiries on a Fedora User group and was persuaded by a user that what I wanted to do could not be done using cups.  When I evaluate the cups documentation it seems to me that the contingency described below should work.  I have been advised that I need to set up a VPN for this to work.  If this is a bug in cups then here is the report.  If this is not a bug then please advise... I am ready to pay the 299.00 for support if this is supposed to work.

I posted the note below on your user's group but have not received a reply

Thank you,

Greg Ennis



I posted a request last week on the Fedora list that I have not received much information about.  I am still not able to solve the problem and am hopeful that some of you might be able to help.  I am unable to broadcast cups remote printer information to a local subnet that is different than the external network card.

In looking at the cups examples I have not seen any example of this capability so I am wondering if anyone else has made this work or is
this a design limit of cups.

Here is the example ip address obviously have been changed

"Remote A" 70.69.68.67     <->     "Remote C" 64.35.30.18

"Remote B" 64.70.99.20     <->     "Remote C" 64,35,30,18


Remote A is a two ethernet card gateway to a local network
Remote B is a one ethernet card gateway to a local network
Remote C is a two ethernet card gateway to a local network

Remote B has only one card because it is attached to an isp's router
that has NAT translation to a local subnet of 10.0.0.0

I am able to get broadcasted printer information into the local network
of Remote  B, but not Remote A or Remote C.  The difference obviously
being the fact that A and C have an internal and external ethernet
cards.

When I look at the examples on the cups documentation or ESP
documentation I have not found any examples of a two network card
machine broadcasting to an internal subnet different than the external
subnet.  There are examples of broadcasting to an internal subnet that
has the same subnet as the external card.

I have used the following on Remote C
BrowseRelay RemoteA @IF(eth1)10.0.0.255
and when I use etheral to look at what is coming out of eth1 I am not seeing either Remote A or Remote B packets.

I would like to know if any of you have been able to make cups broadcast
remote printer information to an external ethernet card and then through
the internal ethernet card using a different subnet for a local network.
If this is possible I would sure like some help.

Thanks,

Greg Ennis