On Sat, 2019-04-13 at 14:48 -0400, Sasha Kacanski wrote: > Hi,I have deb 9.1 and I did install sane-back-end and front-end and > everything worked for a while just fine. > I have latest drivers for sane at least latest from debian > prospective... > > > One day scanner stopped working and aside from usb I can't scan over > network no matter what ... > > export SANE_DEBUG_PIXMA=20 > xport SANE_DEBUG_BJNP=20 > > scanimage -L 2> /tmp/log > > bjnp_allocate_device(bjnp://new-host-3.home:8612) 1 > [bjnp] get_scanner_name: Forward lookup for new-host-3.home > succeeded, using as hostname > [bjnp] setup_udp_socket: Setting up a UDP socket, dest: 192.168.1.4 > port 8612 > [bjnp] bjnp_get_scanner_mac_address: Discover response: > [bjnp] 00000000:42 4a 4e 50 82 01 00 00 00 00 00 00 00 00 00 10 > [bjnp] 00000010:00 01 08 00 06 04 f8 0d 60 cc 7f fa c0 a8 01 04 > [bjnp] add_scanner: Scanner at bjnp://new-host-3.home:8612 was added > before, good! > [bjnp] sanei_find_devices: scanner discovery finished... > [pixma] pixma_collect_devices() found Canon PIXMA MX920 Series at > bjnp://new-host-3.home:8612 > [pixma] pixma_find_scanners() found 2 devices > > scanimage -L > device `pixma:MX920_new-host-3.home' is a CANON Canon PIXMA MX920 > Series multi-function peripheral > device `pixma:04A9176B_239673' is a CANON Canon PIXMA MX920 Series > multi-function peripheral > > I am not sure if the ARP cache is somehow messed up, or something > else is wrong on the network but no matter what I do including > increasing a timeout for bjnp-timeout=5000 > I still get > Error during read: Invalid argument .... > > 14:43:50.725652 ARP, Request who-has new-host-3.home tell > openrg.home, length 46 > 14:44:03.168722 ARP, Request who-has venus.home tell new-host-3.home, > length 46 > 14:44:03.168743 ARP, Reply venus.home is-at d0:50:99:76:17:eb (oui > Unknown), length 28 > 14:44:03.169115 IP new-host-3.home.8612 > venus.home.8612: UDP, > length 32 > 14:44:03.172898 IP new-host-3.home.8612 > venus.home.8612: UDP, > length 32 > 14:44:03.189756 IP venus.home.53994 > new-host-3.home.8612: UDP, > length 16 > 14:44:03.192539 IP new-host-3.home.8612 > venus.home.53994: UDP, > length 32 > 14:44:03.192649 IP venus.home.45336 > new-host-3.home.8612: UDP, > length 16 > 14:44:03.196669 IP new-host-3.home.8612 > venus.home.45336: UDP, > length 117 > 14:44:03.215539 IP venus.home.40091 > new-host-3.home.8612: UDP, > length 16 > 14:44:03.218627 IP new-host-3.home.8612 > venus.home.40091: UDP, > length 32 > 14:44:08.192337 ARP, Request who-has new-host-3.home tell venus.home, > length 28 > 14:44:08.192792 ARP, Reply new-host-3.home is-at f8:0d:60:cc:7f:fa > (oui Unknown), length 46 > 14:44:11.464185 IP new-host-3.home.mdns > 224.0.0.251.mdns: 0*- [0q] > 1/0/0 (Cache flush) TXT "txtvers=1" "adminurl=http://mx920.local."; > "ty=Canon MX920 series" "mfg=Canon" "mdl=MX920 series" "uuid=239673" > "scannerAvailable=1" (181) > 14:44:11.472390 IP new-host-3.home.mdns > 224.0.0.251.mdns: 0*- [0q] > 3/0/0 (Cache flush) AAAA fe80::fa0d:60ff:fecc:7ffa, (Cache flush) A > 192.168.1.4, (Cache flush) SRV mx920.local.:8612 0 0 (120) > 14:44:20.709221 ARP, Request who-has new-host-3.home tell > openrg.home, length 46 > 14:44:28.098120 IP new-host-3.home.mdns > 224.0.0.251.mdns: 0*- [0q] > 5/0/0 (Cache flush) TXT "txtvers=1" "adminurl=http://mx920.local."; > "ty=Canon MX920 series" "mfg=Canon" "mdl=MX920 series" "uuid=239673" > "scannerAvailable=1", (Cache flush) AAAA fe80::fa0d:60ff:fecc:7ffa, > (Cache flush) A 192.168.1.4, (Cache flush) SRV mx920.local.:8612 0 0, > PTR Canon MX920 series._scanner._tcp.local. (265) > This reminds me of a case I looked into last week: can you please do a nslookup new-host-3.home and report back? Does it return more than one IP-address? I had some discussion with another gentlemen last week where it turned out that his modem got confused with DHCP and reported 2 IP-addresses for some new-host.home address... /Louis
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