<html dir="ltr"><head></head><body style="text-align:left; direction:ltr;"><div>On Sat, 2019-04-13 at 14:48 -0400, Sasha Kacanski wrote:</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Hi,<div>I have deb 9.1 and I did install sane-back-end and front-end and everything worked for a while just fine.</div><div>I have latest drivers for sane at least latest from debian prospective...</div><div><br></div><div><br></div><div>One day scanner stopped working and aside from usb I can't scan over network no matter what ...<br clear="all"><div><br></div><div><div>export SANE_DEBUG_PIXMA=20</div><div>xport SANE_DEBUG_BJNP=20</div></div><div><br></div><div>scanimage -L 2> /tmp/log<br></div><div><br></div><div><div>bjnp_allocate_device(bjnp://new-host-3.home:8612) 1</div><div>[bjnp] get_scanner_name: Forward lookup for new-host-3.home succeeded, using as hostname</div><div>[bjnp] setup_udp_socket: Setting up a UDP socket, dest: 192.168.1.4 port 8612</div><div>[bjnp] bjnp_get_scanner_mac_address: Discover response:</div><div>[bjnp] 00000000:42 4a 4e 50 82 01 00 00 00 00 00 00 00 00 00 10 </div><div>[bjnp] 00000010:00 01 08 00 06 04 f8 0d 60 cc 7f fa c0 a8 01 04 </div><div>[bjnp] add_scanner: Scanner at bjnp://new-host-3.home:8612 was added before, good!</div><div>[bjnp] sanei_find_devices: scanner discovery finished...</div><div>[pixma] pixma_collect_devices() found Canon PIXMA MX920 Series at bjnp://new-host-3.home:8612</div><div>[pixma] pixma_find_scanners() found 2 devices</div></div><div><br></div><div><div>scanimage -L</div><div>device `pixma:MX920_new-host-3.home' is a CANON Canon PIXMA MX920 Series multi-function peripheral</div><div>device `pixma:04A9176B_239673' is a CANON Canon PIXMA MX920 Series multi-function peripheral</div></div><div><br></div><div>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 <i>bjnp-timeout=5000</i></div><div><i>I still get </i></div><div><i>Error during read: Invalid argument ....</i></div><div><br></div><div><div>14:43:50.725652 ARP, Request who-has new-host-3.home tell openrg.home, length 46</div><div>14:44:03.168722 ARP, Request who-has venus.home tell new-host-3.home, length 46</div><div>14:44:03.168743 ARP, Reply venus.home is-at d0:50:99:76:17:eb (oui Unknown), length 28</div><div>14:44:03.169115 IP new-host-3.home.8612 > venus.home.8612: UDP, length 32</div><div>14:44:03.172898 IP new-host-3.home.8612 > venus.home.8612: UDP, length 32</div><div>14:44:03.189756 IP venus.home.53994 > new-host-3.home.8612: UDP, length 16</div><div>14:44:03.192539 IP new-host-3.home.8612 > venus.home.53994: UDP, length 32</div><div>14:44:03.192649 IP venus.home.45336 > new-host-3.home.8612: UDP, length 16</div><div>14:44:03.196669 IP new-host-3.home.8612 > venus.home.45336: UDP, length 117</div><div>14:44:03.215539 IP venus.home.40091 > new-host-3.home.8612: UDP, length 16</div><div>14:44:03.218627 IP new-host-3.home.8612 > venus.home.40091: UDP, length 32</div><div>14:44:08.192337 ARP, Request who-has new-host-3.home tell venus.home, length 28</div><div>14:44:08.192792 ARP, Reply new-host-3.home is-at f8:0d:60:cc:7f:fa (oui Unknown), length 46</div><div>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=<a href="http://mx920.local">http://mx920.local</a>." "ty=Canon MX920 series" "mfg=Canon" "mdl=MX920 series" "uuid=239673" "scannerAvailable=1" (181)</div><div>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)</div><div>14:44:20.709221 ARP, Request who-has new-host-3.home tell openrg.home, length 46</div><div>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=<a href="http://mx920.local">http://mx920.local</a>." "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)</div></div><div><br></div></div></div></div></div></div></div></div></blockquote><div>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... </div><div><br></div><div>/Louis</div></body></html>