[sane-devel] Looking for help with scanner
John Oliver
joliver at john-oliver.net
Fri Mar 16 17:07:54 UTC 2018
On Ubuntu 16.04.04, using "Simple Scan" which is, apparently, SANE.
I bought a Canon imageCLASS MF416dw and had to jump through some hoops
to get it printing. It's on the network, wired, local subnet. I'm
using the PIXMA backend.
joliver at blinky:~$ sudo nmap -sU -p 8610-8612 192.168.0.20
Starting Nmap 7.01 ( https://nmap.org ) at 2018-03-16 09:56 PDT
Nmap scan report for 192.168.0.20
Host is up (0.038s latency).
PORT STATE SERVICE
8610/udp open|filtered unknown
8611/udp closed canon-bjnp1
8612/udp closed canon-bjnp2
MAC Address: F4:81:39:E5:85:CE (Canon)
Nmap done: 1 IP address (1 host up) scanned in 1.74 seconds
joliver at blinky:~$ sudo nmap -sT -p 8610-8612 192.168.0.20
Starting Nmap 7.01 ( https://nmap.org ) at 2018-03-16 09:56 PDT
Nmap scan report for 192.168.0.20
Host is up (0.0017s latency).
PORT STATE SERVICE
8610/tcp open unknown
8611/tcp closed unknown
8612/tcp closed unknown
MAC Address: F4:81:39:E5:85:CE (Canon)
Nmap done: 1 IP address (1 host up) scanned in 0.32 seconds
So, I tried mfnp://192.168.0.20 but simple-scan quickly bombs out with
"No scanners detected" So I sniffed traffic while starting sane:
joliver at blinky:~$ sudo tcpdump -vvv host 192.168.0.20
tcpdump: listening on wlp2s0, link-type EN10MB (Ethernet), capture size
262144 bytes
10:04:03.030738 IP (tos 0x0, ttl 64, id 41990, offset 0, flags [DF],
proto UDP (17), length 44)
192.168.0.15.44468 > 192.168.0.20.8610: [udp sum ok] UDP, length 16
10:04:03.032672 IP (tos 0x0, ttl 64, id 6518, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.44468: [udp sum ok] UDP, length 32
10:04:03.032757 IP (tos 0x0, ttl 64, id 41991, offset 0, flags [DF],
proto UDP (17), length 44)
192.168.0.15.48892 > 192.168.0.20.8610: [udp sum ok] UDP, length 16
10:04:03.036182 IP (tos 0x0, ttl 64, id 17032, offset 0, flags [none],
proto UDP (17), length 126)
192.168.0.20.8610 > 192.168.0.15.48892: [udp sum ok] UDP, length 98
10:04:03.040416 IP (tos 0x0, ttl 64, id 23405, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.8612: [udp sum ok] UDP, length 32
10:04:03.050893 IP (tos 0x0, ttl 64, id 11420, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.8612: [udp sum ok] UDP, length 32
10:04:03.082441 IP (tos 0x0, ttl 64, id 41994, offset 0, flags [DF],
proto UDP (17), length 44)
192.168.0.15.41346 > 192.168.0.20.8610: [udp sum ok] UDP, length 16
10:04:03.083924 IP (tos 0x0, ttl 64, id 7595, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.41346: [udp sum ok] UDP, length 32
10:04:03.104825 IP (tos 0x0, ttl 64, id 41998, offset 0, flags [DF],
proto UDP (17), length 44)
192.168.0.15.42059 > 192.168.0.20.8610: [udp sum ok] UDP, length 16
10:04:03.106075 IP (tos 0x0, ttl 64, id 46684, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.42059: [udp sum ok] UDP, length 32
10:04:05.956867 IP (tos 0x0, ttl 255, id 7957, offset 0, flags [none],
proto UDP (17), length 343)
192.168.0.20.mdns > 224.0.0.251.mdns: [udp sum ok] 0- [0q] 1/0/5
_scanner._tcp.local. [4m15s] PTR Canon MF410 Series._scanner._tcp.local.
ar: Canone585ce.local. (Cache flush) [4m15s] A 192.168.0.20, Canon MF410
Series._scanner._tcp.local. (Cache flush) [4m15s] SRV
Canone585ce.local.:8610 0 0, Canon MF410 Series._scanner._tcp.local.
(Cache flush) [4m15s] TXT "txtvers=1" "note="
"adminurl=http://Canone585ce.local/airprint.html" "ty=Canon MF410
Series" "UUID=f48139e585ce" "mfg=Canon" "mdl=MF410 Series"
"scannerAvailable=0", Canone585ce.local. (Cache flush) [4m15s] NSEC,
Canon MF410 Series._scanner._tcp.local. (Cache flush) [4m15s] NSEC (315)
10:04:07.186519 IP (tos 0x0, ttl 64, id 42873, offset 0, flags [DF],
proto UDP (17), length 44)
192.168.0.15.41949 > 192.168.0.20.8610: [udp sum ok] UDP, length 16
10:04:07.187775 IP (tos 0x0, ttl 64, id 41168, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.41949: [udp sum ok] UDP, length 32
10:04:07.187834 IP (tos 0x0, ttl 64, id 42874, offset 0, flags [DF],
proto UDP (17), length 44)
192.168.0.15.49897 > 192.168.0.20.8610: [udp sum ok] UDP, length 16
10:04:07.192040 IP (tos 0x0, ttl 64, id 8611, offset 0, flags [none],
proto UDP (17), length 126)
192.168.0.20.8610 > 192.168.0.15.49897: [udp sum ok] UDP, length 98
10:04:07.193488 IP (tos 0x0, ttl 64, id 43608, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.8612: [udp sum ok] UDP, length 32
10:04:07.203582 IP (tos 0x0, ttl 64, id 58366, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.8612: [udp sum ok] UDP, length 32
10:04:07.232969 IP (tos 0x0, ttl 64, id 42886, offset 0, flags [DF],
proto UDP (17), length 44)
192.168.0.15.57656 > 192.168.0.20.8610: [udp sum ok] UDP, length 16
10:04:07.238180 IP (tos 0x0, ttl 64, id 38127, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.57656: [udp sum ok] UDP, length 32
10:04:07.259478 IP (tos 0x0, ttl 64, id 42889, offset 0, flags [DF],
proto UDP (17), length 44)
192.168.0.15.54438 > 192.168.0.20.8610: [udp sum ok] UDP, length 16
10:04:07.260717 IP (tos 0x0, ttl 64, id 9572, offset 0, flags [none],
proto UDP (17), length 60)
192.168.0.20.8610 > 192.168.0.15.54438: [udp sum ok] UDP, length 32
10:04:08.264073 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has
192.168.0.20 tell 192.168.0.15, length 28
10:04:08.266137 ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.0.20
is-at f4:81:39:e5:85:ce (oui Unknown), length 46
10:04:10.013019 IP (tos 0x0, ttl 255, id 7850, offset 0, flags [none],
proto UDP (17), length 343)
192.168.0.20.mdns > 224.0.0.251.mdns: [udp sum ok] 0- [0q] 1/0/5
_scanner._tcp.local. [4m15s] PTR Canon MF410 Series._scanner._tcp.local.
ar: Canone585ce.local. (Cache flush) [4m15s] A 192.168.0.20, Canon MF410
Series._scanner._tcp.local. (Cache flush) [4m15s] SRV
Canone585ce.local.:8610 0 0, Canon MF410 Series._scanner._tcp.local.
(Cache flush) [4m15s] TXT "txtvers=1" "note="
"adminurl=http://Canone585ce.local/airprint.html" "ty=Canon MF410
Series" "UUID=f48139e585ce" "mfg=Canon" "mdl=MF410 Series"
"scannerAvailable=0", Canone585ce.local. (Cache flush) [4m15s] NSEC,
Canon MF410 Series._scanner._tcp.local. (Cache flush) [4m15s] NSEC (315)
^C
24 packets captured
24 packets received by filter
0 packets dropped by kernel
So I can tell there is some sort of comms going on, but not why it isn't
found.
Any ideas, ah-ha moments, suggestions to further troubleshoot?
--
***********************************************************************
* John Oliver, RHCE, LFCS http://www.john-oliver.net/ *
* *
***********************************************************************
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