On 4/25/22 17:38, Torfinn Ingolfsen wrote:
On Mon, Apr 25, 2022 at 4:51 PM AG via sane-devel
<[email protected]> wrote:
Thanks Ralph, I do not quite understand the technical explanation but I will
try editing the pixma.conf file and see if that does the trick.
Alf
Generally, many devices today use multicast dns (aka mdns, avahi,
zeroconf, bonjour) for _discovery_ of services on a network. This type
of discovery only works on the local (ip) subnet (there are
exceptions, but this usually requires setting up some sort of gateway
between two networks).
So while sane works nicely with an ip address or hostname as long as
you can reach it, discovery of services might not work outside of the
local ip subnet.
Thanks Torfinn. The family home LAN1, 192.168.1.X, is connected with
gateway directly out to the public internet. The printer-scanner is
connected to this LAN and accessible from it. Then there is a separate
second LAN2, 192.168.0.X, with gateway out to the first LAN1 and the
Linux computer is connected to this second LAN and from there to the
Internet through LAN1.
I will try specifying the IP address directly in pixma.conf but it would
be nice if I could tell SANE to also search the 192.168.1.X range or,
maybe, it would be possible to set up a virtual (fictitious) IP address
in LAN2, say 192.168.0.333 which the router would convert and redirect
to LAN1, say 192.168.1.333.
I am just playing around with ideas because I am no expert with
networking or anything else. Until now I just connected the computer to
LAN1 when I needed to scan which is infrequently. If I can specify the
IP address directly in the pixma.conf file that would solve the issue
but I just like kicking ideas around and maybe learning a bit.
When I set up the printer part I just put the IP address in the printer
properties configuration and it worked right away. It would be nice if
the scanner part was just as easy.
Alf
