Hello,
We are new in lora servers, We choose chirpstack for our projects, and We start with a gateway Mikrotik Knot LR8, this gateway is very simple to configuring, so We set the ip address of our chirpstack server and the 1700 udp port
And after that We select the server and the region on the lora configuration of the server
Now on the side of chirpstack We set on chirpstack-gateway-bridge.toml the Gateway backend configuration like We read in this forum
And after that the gateway cannot connect to Chirpstack
We try make a tcp dump and seems that everything ok
tcpdump -AUq -vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv port 1700
tcpdump: listening on enp1s0, link-type EN10MB (Ethernet), snapshot length 262144 bytes
19:31:06.909329 IP (tos 0x0, ttl 64, id 49610, offset 0, flags [DF], proto UDP (17), length 40)
172.20.3.75.33146 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 12
E…(…@.@…;…K…L.z…P.X<.P19S~hGP…
19:31:19.868683 IP (tos 0x0, ttl 64, id 50894, offset 0, flags [DF], proto UDP (17), length 144)
172.20.3.75.52860 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 116
E…@.@…K…L.|…|…P19S~hGP{“stat”:{“ackr”:0.000000,“dwnb”:0,“rxfw”:0,“rxnb”:0,“rxok”:0,“time”:“2023-07-07 17:31:19 GMT”,“txnb”:0}}
19:31:21.664592 IP (tos 0x0, ttl 64, id 51070, offset 0, flags [DF], proto UDP (17), length 347)
172.20.3.75.52860 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 319
E…[.~@.@…T…K…L.|…G’y…P19S~hGP{“rxpk”:[{“chan”:8,“codr”:“4/5”,“data”:“J7ht1X35s5eSWIUxKeAxcH04XgA+YyGqeGyDmBmP508SYhe86lQbnd6Q+TlPrFN6eXcW5fx8DStXcNoCzU7byKUnuruFv4Z0sefL”,“datr”:“SF7BW250”,“freq”:868.300000,“lsnr”:-11.750000,“modu”:“LORA”,“rfch”:1,“rssi”:-112,“size”:75,“stat”:-1,“time”:“2023-07-07T17:31:21.558612Z”,“tmst”:456955122}]}
19:31:21.908806 IP (tos 0x0, ttl 64, id 51082, offset 0, flags [DF], proto UDP (17), length 40)
172.20.3.75.42623 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 12
E…(…@.@…{…K…L…"…P19S~hGP…
19:31:36.912145 IP (tos 0x0, ttl 64, id 52469, offset 0, flags [DF], proto UDP (17), length 40)
172.20.3.75.43241 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 12
E…(…@.@…K…L…D…P19S~hGP…
19:31:49.879266 IP (tos 0x0, ttl 64, id 53459, offset 0, flags [DF], proto UDP (17), length 144)
172.20.3.75.52860 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 116
E…@.@.
…K…L.|…|…L.P19S~hGP{“stat”:{“ackr”:0.000000,“dwnb”:0,“rxfw”:1,“rxnb”:1,“rxok”:0,“time”:“2023-07-07 17:31:49 GMT”,“txnb”:0}}
19:31:51.914396 IP (tos 0x0, ttl 64, id 53603, offset 0, flags [DF], proto UDP (17), length 40)
172.20.3.75.58425 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 12
E…(.c@.@.
…K…L.9…|…*…P19S~hGP…
19:32:06.916070 IP (tos 0x0, ttl 64, id 54813, offset 0, flags [DF], proto UDP (17), length 40)
172.20.3.75.59931 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 12
E…(…@.@…K…L…m…k.P19S~hGP…
19:32:14.050345 IP (tos 0x0, ttl 64, id 55037, offset 0, flags [DF], proto UDP (17), length 275)
172.20.3.75.52860 > chirpstack.chirpstack.1700: [udp sum ok] UDP, length 247
E…@.@…K…L.|…P19S~hGP{“rxpk”:[{“chan”:0,“codr”:“OFF”,“data”:“8u8P4EE+Fh2pkHrmChWXXxMLyvg=”,“datr”:“SF7BW125”,“freq”:868.100000,“lsnr”:-11.750000,“modu”:“LORA”,“rfch”:1,“rssi”:-117,“size”:20,“stat”:-1,“time”:“2023-07-07T17:32:13.944486Z”,“tmst”:509342043}]}
And also We check the gateway traffic and seems that the gateways doenot receive nothing, because only shows errors on Join accept
Please, do you Know why the gateway cannot connect with chirpstack?
Thank you