alexpevzner
commented
1 week ago Please, rerun airscan-discover with the following option: airscan-discover -t
It will create the airscan-discover-zeroconf.log file. Please, attach it here.
Open Thanos808 opened 2 months ago
alexpevzner
commented
1 week ago Please, rerun airscan-discover with the following option: airscan-discover -t
It will create the airscan-discover-zeroconf.log file. Please, attach it here.
Failed when try to discover a Canon ImageCLASS MF4420n scanner with error message: "skipping, none of supported protocols discovered".
sane-airscan version: 0.99.29-1
airscan-discover -d MDNS: AVAHI_CLIENT_S_RUNNING WSDD: netif addresses update: WSDD: + 193.168.20.113@enp7s0, ifindex=2 WSDD: + fe80::a1fa:e5fb:de44:2652@enp7s0, ifindex=2 WSDD: 193.168.20.113: started discovery, UDP port=44939 WSDD: fe80::a1fa:e5fb:de44:2652: started discovery, UDP port=40995 zeroconf: zeroconf_device_list_get: requested zeroconf: device_list wait: requested zeroconf: device_list wait: DNS-SD not finished... MDNS: browse-ipv6@("_ipp._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED MDNS: browse-ipv6@("_ipps._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED MDNS: browse-ipv6@("_uscan._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED MDNS: browse-ipv6@("_uscans._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED MDNS: browse-ipv6@("_scanner._tcp"): AVAHI_BROWSER_CACHE_EXHAUSTED MDNS: browse-ipv6@("_ipp._tcp"): AVAHI_BROWSER_ALL_FOR_NOW MDNS: browse-ipv6@("_ipps._tcp"): AVAHI_BROWSER_ALL_FOR_NOW MDNS: browse-ipv6@("_uscan._tcp"): AVAHI_BROWSER_ALL_FOR_NOW zeroconf: ZEROCONF_USCAN_TCP: initial scan finished MDNS: browse-ipv6@("_uscans._tcp"): AVAHI_BROWSER_ALL_FOR_NOW zeroconf: ZEROCONF_USCANS_TCP: initial scan finished zeroconf: device_list wait: DNS-SD not finished... MDNS: browse-ipv6@("_scanner._tcp"): AVAHI_BROWSER_ALL_FOR_NOW zeroconf: ZEROCONF_MDNS_HINT: initial scan finished zeroconf: device_list wait: WSDD not finished... zeroconf: found urn:uuid:01c80000-fe7f-11de-8a39-001e8faed071 zeroconf: method: ZEROCONF_WSD zeroconf: interface: 2 (enp7s0) zeroconf: name: - zeroconf: model: - zeroconf: addresses: zeroconf: protocol: WSD zeroconf: endpoints: zeroconf: device: 0000 (created) zeroconf: device_list wait: WSDD not finished... WSDD: fe80::a1fa:e5fb:de44:2652: done discovery WSDD: 193.168.20.113: done discovery zeroconf: ZEROCONF_WSD: initial scan finished zeroconf: device_list wait: OK zeroconf: zeroconf_device_list_get: building list of devices zeroconf: urn:uuid:01c80000-fe7f-11de-8a39-001e8faed071 (0): can: none, use: none zeroconf: urn:uuid:01c80000-fe7f-11de-8a39-001e8faed071 (0): skipping, none of supported protocols discovered zeroconf: zeroconf_device_list_get: resulting list: [devices] zeroconf: device gone urn:uuid:01c80000-fe7f-11de-8a39-001e8faed071 zeroconf: method: ZEROCONF_WSD zeroconf: interface: 2 (enp7s0)
On the printer(with scanner ability), the "WSD Print Setting" has been setup as following lines: Use WSD Printing: On Use WSD Browsing: On Use Multicast Discovery: On
On the machine running airscan, I captured the UDP protocol packets during discovery, and find out that the scanner does return contents with xml stuff, but the machine running airscan only returns a ICMP message with Destination unreachable(Port unreachable).