You are not logged in.
Are you running the cups-browsed service? Did you install https://aur.archlinux.org/packages/cups-bjnp/ ?
neither
A wild guess based upon seeing bjnp, but, do you have SANE installed?
Yes! It was a dependency for simple-scan, which I don't remember installing (my printer isn't a scanner), and when I uninstalled simple-scan it stopped all the traffic that occurs when I plug/unplug the USB.
Could this "USB triggered" communication have been the cause of her printer not working? I guess I'll let you know if it gets better.
Here are other packages I apparently installed. I know I didn't actually explicitly install all of them. At least the gnome ones.
> pacman -Qet
alsa-utils 1.2.1-1
amd-ucode 20191022.2b016af-3
arduino 1:1.8.9-3
autoconf 2.69-6
automake 1.16.1-2
baobab 3.34.0-1
bison 3.4.2-2
eog 3.34.1-1
epiphany 3.34.2-1
file-roller 3.32.3-1
firefox 71.0-1
flex 2.6.4-3
gdm 3.34.1-1
gedit 3.34.1-1
gnome-backgrounds 3.34.0-1
gnome-books 3.34.0-1
gnome-boxes 3.34.2-1
gnome-calculator 3.34.1-1
gnome-calendar 3.34.2-1
gnome-characters 3.32.1-1
gnome-clocks 3.34.0-1
gnome-contacts 3.34-1
gnome-dictionary 3.26.1-1
gnome-disk-utility 3.34.0-2
gnome-documents 3.33.90+7+gcc19ed47-1
gnome-font-viewer 3.34.0-1
gnome-getting-started-docs 3.34.1-1
gnome-logs 3.34.0-1
gnome-maps 3.34.2-1
gnome-music 1:3.34.2-1
gnome-photos 3.34.0-1
gnome-screenshot 3.34.0-1
gnome-shell-extensions 3.34.1-1
gnome-software 3.34.2-1
gnome-system-monitor 3.32.1-1
gnome-terminal 3.34.2-1
gnome-todo 3.28.1+22+gd56e14e-1
gnome-user-docs 3.34.1-1
gnome-weather 3.34.0-1
gnucash 3.7-3
gvim 8.1.2268-2
inetutils 1.9.4-8
inkscape 0.92.4-9
iputils 20190709-2
jfsutils 1.1.15-7
licenses 20191011-2
linux 5.4.1.arch1-1
lshw B.02.18-3
make 4.2.1-4
man-db 2.9.0-1
man-pages 5.04-2
mousetweaks 3.32.0-1
nano 4.6-1
nautilus 3.34.2-1
netctl 1.20-2
nmap 7.80-1
orca 3.34.1-1
pacman-contrib 1.2.0-3
patch 2.7.6-8
pkgconf 1.6.3-3
pwgen 2.08-1
python-matplotlib 3.1.1-4
python-scipy 1.3.1-2
python-sortedcontainers 2.1.0-4
reiserfsprogs 3.6.27-3
rsync 3.1.3-1
sushi 3.34.0-1
thunderbird 68.2.2-2
totem 3.34.1-1
usbutils 012-2
vi 1:070224-4
vino 3.22.0+60+gd29a4f2-1
wireshark-qt 3.0.7-1
xdg-user-dirs-gtk 0.10+9+g5b7efc6-2
The talk to the Epson printer is likely what gets it active, but you'd need to post the traffic
If this is still relevent
2257 293.562110681 192.168.1.77 192.168.1.255 BJNP 60 Scanner Command: Discover
2258 293.562121791 192.168.1.77 192.168.1.255 BJNP 60 Scanner Command: Discover
2259 293.562139521 2600:1702:fe1:3180::2c ff02::1 BJNP 80 Scanner Command: Discover
2260 293.562143551 2600:1702:fe1:3180::2c ff02::1 BJNP 80 Scanner Command: Discover
2261 293.562146851 2600:1702:fe1:3180:53f:9352:7aba:f251 ff02::1 BJNP 80 Scanner Command: Discover
2262 293.562150151 2600:1702:fe1:3180:53f:9352:7aba:f251 ff02::1 BJNP 80 Scanner Command: Discover
2263 293.562153281 fe80::2009:e1b6:a31f:ace3 ff02::1 BJNP 80 Scanner Command: Discover
2264 293.562156261 fe80::2009:e1b6:a31f:ace3 ff02::1 BJNP 80 Scanner Command: Discover
2265 293.572686897 192.168.1.77 192.168.1.255 BJNP 60 Scanner Command: Discover
2266 293.572703587 192.168.1.77 192.168.1.255 BJNP 60 Scanner Command: Discover
2267 293.572728827 2600:1702:fe1:3180::2c ff02::1 BJNP 80 Scanner Command: Discover
2268 293.572736507 2600:1702:fe1:3180::2c ff02::1 BJNP 80 Scanner Command: Discover
2269 293.572743447 2600:1702:fe1:3180:53f:9352:7aba:f251 ff02::1 BJNP 80 Scanner Command: Discover
2270 293.572749967 2600:1702:fe1:3180:53f:9352:7aba:f251 ff02::1 BJNP 80 Scanner Command: Discover
2271 293.572759567 fe80::2009:e1b6:a31f:ace3 ff02::1 BJNP 80 Scanner Command: Discover
2272 293.572766887 fe80::2009:e1b6:a31f:ace3 ff02::1 BJNP 80 Scanner Command: Discover
2273 293.860583827 ArrisGro_83:7a:d2 0x7373 120 Broadcast
2274 293.860766307 ArrisGro_83:7a:d2 0x7373 120 Broadcast
2275 294.109459197 192.168.1.77 255.255.255.255 SNMP 117 get-request 1.3.6.1.2.1.1.1.0 1.3.6.1.2.1.1.2.0 1.3.6.1.2.1.2.2.1.6.1
2276 294.243814982 SamsungE_62:ad:5f ARP 62 Who has 192.168.1.77? Tell 192.168.1.186
2277 294.243874312 Micro-St_58:67:05 ARP 44 192.168.1.77 is at 00:d8:61:58:67:05
2278 294.247820465 192.168.1.186 192.168.1.77 SNMP 251 get-response 1.3.6.1.2.1.1.1.0 1.3.6.1.2.1.1.2.0 1.3.6.1.2.1.2.2.1.6.1
2279 294.402077219 ArrisGro_83:7a:d0 ARP 62 Who has 192.168.1.76? Tell 192.168.1.254
2280 294.860056719 ArrisGro_83:7a:d2 0x7373 120 Broadcast
2281 294.860067579 ArrisGro_83:7a:d2 0x7373 120 Broadcast
2282 295.10965452 192.168.1.77 255.255.255.255 SNMP 117 get-request 1.3.6.1.2.1.1.1.0 1.3.6.1.2.1.1.2.0 1.3.6.1.2.1.2.2.1.6.1
2283 295.167250047 192.168.1.186 192.168.1.77 SNMP 251 get-response 1.3.6.1.2.1.1.1.0 1.3.6.1.2.1.1.2.0 1.3.6.1.2.1.2.2.1.6.1
2284 295.402767231 ArrisGro_83:7a:d0 ARP 62 Who has 192.168.1.76? Tell 192.168.1.254
2285 295.767155357 192.168.1.77 255.255.255.255 UDP 59 33121 > 3289 Len=15
2286 295.859453511 ArrisGro_83:7a:d2 0x7373 120 Broadcast
2287 295.859978972 ArrisGro_83:7a:d2 0x7373 120 Broadcast
2288 296.092898143 192.168.1.68 192.168.1.77 UDP 120 3289 > 33121 Len=76
2289 296.093059453 Micro-St_58:67:05 ARP 44 Who has 192.168.1.68? Tell 192.168.1.77
2290 296.389587745 SeikoEps_45:e7:eb ARP 62 192.168.1.68 is at ac:18:26:45:e7:eb
2291 296.389604605 192.168.1.77 192.168.1.68 TCP 76 47504 > 1865 [SYN] Seq=0 Win=64240 Len=0 MSS=1460 SACK_PERM=1 TSval=3716184372 TSecr=0 WS=128
2292 296.391731117 192.168.1.68 192.168.1.77 TCP 72 "1865 > 47504 [SYN ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 SACK_PERM=1 TSval=373490710 TSecr=3716184372"
2293 296.391761497 192.168.1.77 192.168.1.68 TCP 68 47504 > 1865 [ACK] Seq=1 Ack=1 Win=64240 Len=0 TSval=3716184671 TSecr=373490710
2294 296.394836628 192.168.1.68 192.168.1.77 TCP 85 "1865 > 47504 [PSH ACK] Seq=1 Ack=1 Win=5792 Len=17 TSval=373490710 TSecr=3716184671"
2295 296.394849148 192.168.1.77 192.168.1.68 TCP 68 47504 > 1865 [ACK] Seq=1 Ack=18 Win=64223 Len=0 TSval=3716184674 TSecr=373490710
2296 296.394907879 192.168.1.77 192.168.1.68 TCP 68 "47504 > 1865 [RST ACK] Seq=1 Ack=18 Win=64223 Len=0 TSval=3716184674 TSecr=373490710"
2297 296.404753953 ArrisGro_83:7a:d0 ARP 62 Who has 192.168.1.76? Tell 192.168.1.254
2298 296.859854361 ArrisGro_83:7a:d2 0x7373 120 Broadcast
2299 296.859985841 ArrisGro_83:7a:d2 0x7373 120 Broadcast
2300 297.074465965 192.168.1.77 255.255.255.255 UDP 59 60406 > 3289 Len=15
2301 297.313506449 192.168.1.68 192.168.1.77 UDP 120 3289 > 60406 Len=76
2302 297.3136483 192.168.1.77 192.168.1.68 TCP 76 47506 > 1865 [SYN] Seq=0 Win=64240 Len=0 MSS=1460 SACK_PERM=1 TSval=3716185593 TSecr=0 WS=128
2303 297.31573096 192.168.1.68 192.168.1.77 TCP 72 "1865 > 47506 [SYN ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 SACK_PERM=1 TSval=373490800 TSecr=3716185593"
2304 297.31578987 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=1 Ack=1 Win=64240 Len=0 TSval=3716185595 TSecr=373490800
2305 297.319938892 192.168.1.68 192.168.1.77 TCP 85 "1865 > 47506 [PSH ACK] Seq=1 Ack=1 Win=5792 Len=17 TSval=373490801 TSecr=3716185595"
2306 297.319970812 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=1 Ack=18 Win=64223 Len=0 TSval=3716185599 TSecr=373490801
2307 297.320066702 192.168.1.77 192.168.1.68 TCP 80 "47506 > 1865 [PSH ACK] Seq=1 Ack=18 Win=64223 Len=12 TSval=3716185599 TSecr=373490801"
2308 297.321988453 192.168.1.68 192.168.1.77 TCP 68 1865 > 47506 [ACK] Seq=18 Ack=13 Win=5780 Len=0 TSval=373490801 TSecr=3716185599
2309 297.322016343 192.168.1.68 192.168.1.77 TCP 81 "1865 > 47506 [PSH ACK] Seq=18 Ack=13 Win=5780 Len=13 TSval=373490801 TSecr=3716185599"
2310 297.322030463 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=13 Ack=31 Win=64210 Len=0 TSval=3716185601 TSecr=373490801
2311 297.322108383 192.168.1.77 192.168.1.68 TCP 90 "47506 > 1865 [PSH ACK] Seq=13 Ack=31 Win=64210 Len=22 TSval=3716185601 TSecr=373490801"
2312 297.324225094 192.168.1.68 192.168.1.77 TCP 80 "1865 > 47506 [PSH ACK] Seq=31 Ack=35 Win=5758 Len=12 TSval=373490801 TSecr=3716185601"
2313 297.324265614 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=35 Ack=43 Win=64198 Len=0 TSval=3716185603 TSecr=373490801
2314 297.324437755 192.168.1.68 192.168.1.77 TCP 69 "1865 > 47506 [PSH ACK] Seq=43 Ack=35 Win=5758 Len=1 TSval=373490801 TSecr=3716185601"
2315 297.324443925 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=35 Ack=44 Win=64197 Len=0 TSval=3716185604 TSecr=373490801
2316 297.324470025 192.168.1.77 192.168.1.68 TCP 90 "47506 > 1865 [PSH ACK] Seq=35 Ack=44 Win=64197 Len=22 TSval=3716185604 TSecr=373490801"
2317 297.360772122 192.168.1.68 192.168.1.77 TCP 68 1865 > 47506 [ACK] Seq=44 Ack=57 Win=5736 Len=0 TSval=373490805 TSecr=3716185604
2318 297.363337614 192.168.1.68 192.168.1.77 TCP 80 "1865 > 47506 [PSH ACK] Seq=44 Ack=57 Win=5736 Len=12 TSval=373490805 TSecr=3716185604"
2319 297.363360354 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=57 Ack=56 Win=64185 Len=0 TSval=3716185642 TSecr=373490805
2320 297.366902206 192.168.1.68 192.168.1.77 TCP 72 "1865 > 47506 [PSH ACK] Seq=56 Ack=57 Win=5736 Len=4 TSval=373490805 TSecr=3716185642"
2321 297.366933686 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=57 Ack=60 Win=64181 Len=0 TSval=3716185646 TSecr=373490805
2322 297.367018636 192.168.1.77 192.168.1.68 TCP 90 "47506 > 1865 [PSH ACK] Seq=57 Ack=60 Win=64181 Len=22 TSval=3716185646 TSecr=373490805"
2323 297.368822487 192.168.1.68 192.168.1.77 TCP 68 1865 > 47506 [ACK] Seq=60 Ack=79 Win=5714 Len=0 TSval=373490805 TSecr=3716185646
2324 297.368857747 192.168.1.68 192.168.1.77 TCP 80 "1865 > 47506 [PSH ACK] Seq=60 Ack=79 Win=5714 Len=12 TSval=373490805 TSecr=3716185646"
2325 297.370360058 192.168.1.68 192.168.1.77 TCP 148 "1865 > 47506 [PSH ACK] Seq=72 Ack=79 Win=5714 Len=80 TSval=373490806 TSecr=3716185646"
2326 297.370440358 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=79 Ack=152 Win=64089 Len=0 TSval=3716185649 TSecr=373490805
2327 297.370500758 192.168.1.77 192.168.1.68 TCP 90 "47506 > 1865 [PSH ACK] Seq=79 Ack=152 Win=64089 Len=22 TSval=3716185650 TSecr=373490805"
2328 297.372058689 192.168.1.68 192.168.1.77 TCP 80 "1865 > 47506 [PSH ACK] Seq=152 Ack=101 Win=5692 Len=12 TSval=373490806 TSecr=3716185650"
2329 297.373793279 192.168.1.68 192.168.1.77 TCP 84 "1865 > 47506 [PSH ACK] Seq=164 Ack=101 Win=5692 Len=16 TSval=373490806 TSecr=3716185650"
2330 297.373812249 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=101 Ack=180 Win=64061 Len=0 TSval=3716185653 TSecr=373490806
2331 297.373839039 192.168.1.77 192.168.1.68 TCP 90 "47506 > 1865 [PSH ACK] Seq=101 Ack=180 Win=64061 Len=22 TSval=3716185653 TSecr=373490806"
2332 297.37591059 192.168.1.68 192.168.1.77 TCP 80 "1865 > 47506 [PSH ACK] Seq=180 Ack=123 Win=5670 Len=12 TSval=373490806 TSecr=3716185653"
2333 297.377595671 192.168.1.68 192.168.1.77 TCP 69 "1865 > 47506 [PSH ACK] Seq=192 Ack=123 Win=5670 Len=1 TSval=373490806 TSecr=3716185653"
2334 297.377659481 192.168.1.77 192.168.1.68 TCP 68 47506 > 1865 [ACK] Seq=123 Ack=193 Win=64061 Len=0 TSval=3716185657 TSecr=373490806
2335 297.377682921 192.168.1.77 192.168.1.68 TCP 80 "47506 > 1865 [PSH ACK] Seq=123 Ack=193 Win=64061 Len=12 TSval=3716185657 TSecr=373490806"
2336 297.377691961 192.168.1.77 192.168.1.68 TCP 68 "47506 > 1865 [FIN ACK] Seq=135 Ack=193 Win=64061 Len=0 TSval=3716185657 TSecr=373490806"
2337 297.379215842 192.168.1.68 192.168.1.77 TCP 80 [TCP Dup ACK 2332#1] 1865 > 47506 [ACK] Seq=193 Ack=123 Win=5670 Len=0 TSval=373490806 TSecr=3716185653 SLE=135 SRE=136
2338 297.379759732 192.168.1.68 192.168.1.77 TCP 80 "1865 > 47506 [PSH ACK] Seq=193 Ack=136 Win=5657 Len=12 TSval=373490806 TSecr=3716185657"
2339 297.379789812 192.168.1.77 192.168.1.68 TCP 56 47506 > 1865 [RST] Seq=136 Win=0 Len=0
2340 297.379802512 192.168.1.68 192.168.1.77 TCP 68 "1865 > 47506 [FIN ACK] Seq=205 Ack=136 Win=5657 Len=0 TSval=373490806 TSecr=3716185657"
2341 297.379809532 192.168.1.77 192.168.1.68 TCP 56 47506 > 1865 [RST] Seq=136 Win=0 Len=0
Offline
It's possible that GNOME with simple-scan triggers a rediscovery of scanners (including network ones) when a USB device is attached. I have no idea why it would do that if simple-scan is not running.
Does this happen without simple-scan, but with the sane package installed?
Offline
Can you disable snmp in the Epson printer? It might cause the printer to appear offline all the time, but if it doesn't it should stop the interruptions from CUPS. I'm unfamiliar with this approach for a printer, but use it to harden data-loggers.
∞ hard times make the strong, the strong make good times, good times make the weak, the weak make hard times ∞
Offline
So the Epson has stopped making the noise, but the other printer still intermittently prints error pages.
Does this happen without simple-scan, but with the sane package installed?
I haven't tried. If you're still interested I can check for you.
Can you disable snmp in the Epson printer?
Is that for stopping the noise on the Epson printer? Because the epson noise has stopped by uninstalling gnome packages. And the Epson noise wasn't the original problem - it was just a clue. But the Samsung is still having errors so maybe it had nothing to do with it.
Can my computer function perfectly fine with no local network traffic? Can I set up a firewall to block myself from everything but the outside internet? Or setup wireshark to monitor for any traffic I send out locally? If I have no outgoing network traffic then does that mean it's impossible to be my fault that the printer is not working? Is this a reasonable approach?
Before post edit: I realized that I may not have restarted my computer between uninstalling simple scan and getting an error page. So I don't know for sure that it's not fixed by uninstalling simple-scan.
Thanks
Last edited by boehmp (2019-12-14 00:17:22)
Offline
Inspect iptables:
sudo iptables -nvL
Block all outbound traffic to the printer
sudo iptables -I OUTPUT -d 192.168.1.186 -j REJECT -m comment --comment "Notmyfault
Check whether it worked:
sudo iptables -nvL
Ultimately delete the rule
sudo iptables -D OUTPUT -d 192.168.1.186 -j REJECT -m comment --comment "Notmyfault
Edit: those entries will not survive a reboot, you've to re-apply them!
My gut fealing was that this problem isn't related to your system.
Last edited by seth (2019-12-14 08:54:26)
Offline