[sane-devel] Network detection fails to find Canon Scanner

[Harvey Nimmo]

On Wed, 2023-03-29 at 00:56 +0200, Thierry Huchard wrote:
> Le 2023-03-28 19:49, Harvey Nimmo a écrit :
> > I downloaded the rpm of sane-airscan and treid to install it.
> > Unfortunately, a library (libc.so.6 (GLIBC_2.34)/64 bit) is missing
> > so
> > that the installation could not be completed.
> > What could I do about that?
> > 
> Hi,
> 
> Can you try this, it is the scangearmp2 version which includes the
> sane 
> backend.
> you should be able to use simple-scan or xsane.
> 
> https://download.opensuse.org/repositories/home:/thierry1970/15.4/x86_64/
> 
> Thierry
Hi Thiery, 
scangearmp2-4.20-1 is installed. Neither simple-scan nor xsane find the
scanner.

simple-scan returns:
[12:27:50.038785] [bjnp] udp_command: ERROR - no data received (timeout
= 10000)
[12:27:50.038938] [bjnp] bjnp_init_device_structure: Cannot read mac
address, skipping this scanner
[12:27:51.941786] [bjnp] udp_command: ERROR - no data received (timeout
= 10000)
[12:27:51.941952] [bjnp] bjnp_init_device_structure: Cannot read mac
address, skipping this scanner
xsane returns:
[12:28:46.519643] [bjnp] udp_command: ERROR - no data received (timeout
= 10000)
[12:28:46.519814] [bjnp] bjnp_init_device_structure: Cannot read mac
address, skipping this scanner

These both fail, irrespective of whether my desktop firewall is running
or not.

scangearpm2 finds the scanner only if my desktop firewall is not
running. 

I wonder if there is a problem with port forwarding in my router? but
which ports apply?

Cheers
Harvey