Do you ever have that incessant feeling of debugging your sane config?

[snowycoder@a.junimo.party]

Do you ever have that incessant feeling of debugging your sane config?
Like, your new scanner worked in NAPS2, but now it only works in SkanLite, scanimage -L doesn't detect it but airscan-discover works fine...

WELL I DID, EVERYTHING IS WORKING NOW.

And the problem was??????
IPv6

[steffo@a.junimo.party]

@snowycoder WHAT

[snowycoder@a.junimo.party]

@steffo I tried to run SANE_DEBUG_AIRSCAN=true scanimage -L and I saw something interesting:

WSDD: HTTP POST http://192.168.1.88:80/WebServices/Device: 200 OK
WSDD: HTTP POST http://192.168.1.88:80/WebServices/Device: OK
WSDD: "Brother MFC-L3740CDW series": IPv6 address expected but not yet discovered
WSDD: "Brother MFC-L3740CDW series": IPv6 address expected but not yet discovered
WSDD: "Brother MFC-L3740CDW series": IPv6 address expected but not yet discovered
...

I guess that sane-airscan saw the IPv4 printer and somehow tried to contact it in IPv6, and it just failed