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davidrenne opened this issue Dec 20, 2018 · 3 comments
Closed

Dropped mdns results #47

davidrenne opened this issue Dec 20, 2018 · 3 comments

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@davidrenne
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The latest package for us is always giving us inconsistent results from our devices.

Whereas this package:

https://github.com/hashicorp/mdns

This works every single time.

For anyone reading this, I would just choose to use hashicorp's library over this library until this is fixed. I dont mind recompiling a new build and re-running on my mdns devices shown here. Essentially I should get 5 unique models of omnistream shown which hashicorp's library consistently returns 5 items for us.

Here are my logs:

$ go run mdnsDiscover.go 


192.168.1.202 velocity.local.
192.168.1.252 model=at-omni-121
192.168.1.232 model=at-omni-521

192.168.1.253 model=at-omni-111
192.168.1.248 model=at-omni-122







Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.232 model=at-omni-521
192.168.1.230 model=at-omni-512
192.168.1.253 model=at-omni-111



Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.232 model=at-omni-521
192.168.1.230 model=at-omni-512
192.168.1.253 model=at-omni-111

Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.232 model=at-omni-521
192.168.1.253 model=at-omni-111
192.168.1.230 model=at-omni-512
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.230 model=at-omni-512
192.168.1.252 model=at-omni-121
192.168.1.232 model=at-omni-521
192.168.1.253 model=at-omni-111
192.168.1.248 model=at-omni-122
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.252 model=at-omni-121
192.168.1.232 model=at-omni-521
192.168.1.253 model=at-omni-111
192.168.1.248 model=at-omni-122
192.168.1.230 model=at-omni-512


Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.252 model=at-omni-121
192.168.1.232 model=at-omni-521
192.168.1.230 model=at-omni-512
192.168.1.248 model=at-omni-122
192.168.1.253 model=at-omni-111

Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.252 model=at-omni-121
192.168.1.232 model=at-omni-521
192.168.1.248 model=at-omni-122
192.168.1.253 model=at-omni-111
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.230 model=at-omni-512
192.168.1.248 model=at-omni-122
192.168.1.232 model=at-omni-521
192.168.1.253 model=at-omni-111
192.168.1.252 model=at-omni-121

Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.230 model=at-omni-512
192.168.1.232 model=at-omni-521
192.168.1.253 model=at-omni-111



Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
192.168.1.202 velocity.local.
192.168.1.230 model=at-omni-512
192.168.1.248 model=at-omni-122
192.168.1.232 model=at-omni-521
192.168.1.252 model=at-omni-121
Davids-MacBook-Pro:Downloads davidrenne$ go get github.com/hashicorp/mdns
Davids-MacBook-Pro:Downloads davidrenne$ vim mdnsDiscover.go 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
# command-line-arguments
./mdnsDiscover.go:12:9: undefined: fmt
Davids-MacBook-Pro:Downloads davidrenne$ vim mdnsDiscover.go 
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:52:21 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:52:22 [INFO] mdns: Closing client {0xc42000e030 0xc42000e038 0xc42000e040 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:52:22 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:61268: use of closed network connection
2018/12/20 15:52:22 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:52:41 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{VelocityGateway._ajows._tcp.local. velocity.local. 192.168.1.202 <nil> 42424 txtv=0|lo=1|la=2 [txtv=0 lo=1 la=2] 192.168.1.202 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:52:42 [INFO] mdns: Closing client {0xc42000e030 0xc42000e038 0xc42000e040 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:52:42 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:63117: use of closed network connection
2018/12/20 15:52:42 [ERR] mdns: Failed to read packet: read udp6 [::]:63118: use of closed network connection
2018/12/20 15:52:42 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:52:47 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:52:48 [INFO] mdns: Closing client {0xc4200ba020 0xc4200ba028 0xc4200ba030 <nil> true 0xc4200981e0 {1 0}}
2018/12/20 15:52:48 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:64006: use of closed network connection
2018/12/20 15:52:48 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
2018/12/20 15:52:48 [ERR] mdns: Failed to read packet: read udp6 [::]:64007: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:03 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
Got new entry: &{amzn\.dmgr:1E8EA5E8B62252574495D8E11427F98D:BtOSCVJEPv:922114._amzn-wplay._tcp.local. 192-168-1-12.local. 192.168.1.12 <nil> 40682 s=0|at=RCpejAcaXTm+|n=Fire TV|tr=tcp|sp=39759|pv=1|mv=2|v=2|a=0|u=1E8EA5E8B62252574495D8E11427F98D|ad=A2LWARUGJLBYEW|dpv=1|t=8|f=0 [s=0 at=RCpejAcaXTm+ n=Fire TV tr=tcp sp=39759 pv=1 mv=2 v=2 a=0 u=1E8EA5E8B62252574495D8E11427F98D ad=A2LWARUGJLBYEW dpv=1 t=8 f=0] 192.168.1.12 true true}
2018/12/20 15:53:04 [INFO] mdns: Closing client {0xc4200ac020 0xc4200ac028 0xc4200ac030 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:53:04 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:53944: use of closed network connection
2018/12/20 15:53:04 [ERR] mdns: Failed to read packet: read udp6 [::]:53945: use of closed network connection
2018/12/20 15:53:04 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:06 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:53:07 [INFO] mdns: Closing client {0xc4200ba020 0xc4200ba028 0xc4200ba030 <nil> true 0xc4200981e0 {1 0}}
2018/12/20 15:53:07 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:50376: use of closed network connection
2018/12/20 15:53:07 [ERR] mdns: Failed to read packet: read udp6 [::]:50377: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:09 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:53:10 [INFO] mdns: Closing client {0xc42000e030 0xc42000e038 0xc42000e040 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:53:10 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:64024: use of closed network connection
2018/12/20 15:53:10 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:13 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{VelocityGateway._ajows._tcp.local. velocity.local. 192.168.1.202 <nil> 42424 txtv=0|lo=1|la=2 [txtv=0 lo=1 la=2] 192.168.1.202 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
Got new entry: &{amzn\.dmgr:1E8EA5E8B62252574495D8E11427F98D:BtOSCVJEPv:922114._amzn-wplay._tcp.local. 192-168-1-12.local. 192.168.1.12 <nil> 40682 s=0|at=RCpejAcaXTm+|n=Fire TV|tr=tcp|sp=39759|pv=1|mv=2|v=2|a=0|u=1E8EA5E8B62252574495D8E11427F98D|ad=A2LWARUGJLBYEW|dpv=1|t=8|f=0 [s=0 at=RCpejAcaXTm+ n=Fire TV tr=tcp sp=39759 pv=1 mv=2 v=2 a=0 u=1E8EA5E8B62252574495D8E11427F98D ad=A2LWARUGJLBYEW dpv=1 t=8 f=0] 192.168.1.12 true true}
2018/12/20 15:53:14 [INFO] mdns: Closing client {0xc4200b2020 0xc4200b2028 0xc4200b2030 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:53:14 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:55832: use of closed network connection
2018/12/20 15:53:14 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:15 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{VelocityGateway._ajows._tcp.local. velocity.local. 192.168.1.202 <nil> 42424 txtv=0|lo=1|la=2 [txtv=0 lo=1 la=2] 192.168.1.202 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:53:16 [INFO] mdns: Closing client {0xc42000e030 0xc42000e038 0xc42000e040 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:53:16 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:49407: use of closed network connection
2018/12/20 15:53:16 [ERR] mdns: Failed to read packet: read udp6 [::]:49408: use of closed network connection
2018/12/20 15:53:16 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:18 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:53:19 [INFO] mdns: Closing client {0xc42000e030 0xc42000e038 0xc42000e040 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:53:19 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:51138: use of closed network connection
2018/12/20 15:53:19 [ERR] mdns: Failed to read packet: read udp6 [::]:51139: use of closed network connection
2018/12/20 15:53:19 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:27 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:53:28 [INFO] mdns: Closing client {0xc4200ac020 0xc4200ac028 0xc4200ac030 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:53:28 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:56674: use of closed network connection
2018/12/20 15:53:28 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:35 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{VelocityGateway._ajows._tcp.local. velocity.local. 192.168.1.202 <nil> 42424 txtv=0|lo=1|la=2 [txtv=0 lo=1 la=2] 192.168.1.202 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:53:36 [INFO] mdns: Closing client {0xc4200ba020 0xc4200ba028 0xc4200ba030 <nil> true 0xc4200981e0 {1 0}}
2018/12/20 15:53:36 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:65089: use of closed network connection
2018/12/20 15:53:36 [ERR] mdns: Failed to read packet: read udp6 [::]:65090: use of closed network connection
2018/12/20 15:53:36 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:53:53 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
Got new entry: &{amzn\.dmgr:1E8EA5E8B62252574495D8E11427F98D:BtOSCVJEPv:922114._amzn-wplay._tcp.local. 192-168-1-12.local. 192.168.1.12 <nil> 40682 s=0|at=RCpejAcaXTm+|n=Fire TV|tr=tcp|sp=39759|pv=1|mv=2|v=2|a=0|u=1E8EA5E8B62252574495D8E11427F98D|ad=A2LWARUGJLBYEW|dpv=1|t=8|f=0 [s=0 at=RCpejAcaXTm+ n=Fire TV tr=tcp sp=39759 pv=1 mv=2 v=2 a=0 u=1E8EA5E8B62252574495D8E11427F98D ad=A2LWARUGJLBYEW dpv=1 t=8 f=0] 192.168.1.12 true true}
2018/12/20 15:53:54 [INFO] mdns: Closing client {0xc42000e030 0xc42000e038 0xc42000e040 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:53:54 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:64112: use of closed network connection
2018/12/20 15:53:54 [ERR] mdns: Failed to read packet: read udp6 [::]:64113: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:54:21 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:54:22 [INFO] mdns: Closing client {0xc4200ba020 0xc4200ba028 0xc4200ba030 <nil> true 0xc4200981e0 {1 0}}
2018/12/20 15:54:22 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:59558: use of closed network connection
2018/12/20 15:54:22 [ERR] mdns: Failed to read packet: read udp6 [::]:59559: use of closed network connection
2018/12/20 15:54:22 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:55:12 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{VelocityGateway._ajows._tcp.local. velocity.local. 192.168.1.202 <nil> 42424 txtv=0|lo=1|la=2 [txtv=0 lo=1 la=2] 192.168.1.202 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:55:13 [INFO] mdns: Closing client {0xc4200b2020 0xc4200b2028 0xc4200b2030 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:55:13 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:50644: use of closed network connection
2018/12/20 15:55:13 [ERR] mdns: Failed to read packet: read udp6 [::]:50645: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:55:21 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:55:22 [INFO] mdns: Closing client {0xc4200ac020 0xc4200ac028 0xc4200ac030 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:55:22 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:61069: use of closed network connection
2018/12/20 15:55:22 [ERR] mdns: Failed to read packet: read udp6 [::]:61070: use of closed network connection
Davids-MacBook-Pro:Downloads davidrenne$ go run mdnsDiscover.go 
2018/12/20 15:55:27 [ERR] mdns: Failed to bind to udp6 port: listen udp6 [ff02::fb]:5353: setsockopt: can't assign requested address
Got new entry: &{at-omni-122-00487._ajows._tcp.local. at-omni-122-00487.local. 192.168.1.248 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-122|uniqueID=at-omni-122-00487 [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00487] 192.168.1.248 true true}
Got new entry: &{at-omni-121-00706._ajows._tcp.local. at-omni-121-00706.local. 192.168.1.252 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-121|uniqueID=at-omni-121-00706 [txtvers=1 ws=/wsapp/ model=at-omni-121 uniqueID=at-omni-121-00706] 192.168.1.252 true true}
Got new entry: &{at-omni-111-00459._ajows._tcp.local. at-omni-111-00459.local. 192.168.1.253 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-111|uniqueID=at-omni-111-00459 [txtvers=1 ws=/wsapp/ model=at-omni-111 uniqueID=at-omni-111-00459] 192.168.1.253 true true}
Got new entry: &{at-omni-512-00010._ajows._tcp.local. at-omni-512-00010.local. 192.168.1.230 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-512|uniqueID=at-omni-512-00010 [txtvers=1 ws=/wsapp/ model=at-omni-512 uniqueID=at-omni-512-00010] 192.168.1.230 true true}
Got new entry: &{at-omni-521-00046._ajows._tcp.local. at-omni-521-00046.local. 192.168.1.232 <nil> 80 txtvers=1|ws=/wsapp/|model=at-omni-521|uniqueID=at-omni-521-00046 [txtvers=1 ws=/wsapp/ model=at-omni-521 uniqueID=at-omni-521-00046] 192.168.1.232 true true}
Got new entry: &{ATL-UHD-CLSO-824._ahttp._tcp.local. ATL-UHD-CLSO-824.local. 192.168.1.99 <nil> 80  [] 192.168.1.99 true true}
2018/12/20 15:55:28 [INFO] mdns: Closing client {0xc4200b2020 0xc4200b2028 0xc4200b2030 <nil> true 0xc42008a1e0 {1 0}}
2018/12/20 15:55:28 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:58464: use of closed network connection
2018/12/20 15:55:28 [ERR] mdns: Failed to read packet: read udp6 [::]:58465: use of closed network connection
2018/12/20 15:55:28 [ERR] mdns: Failed to read packet: read udp4 0.0.0.0:5353: use of closed network connectio

The version which is your library is:

package main

import (
	"context"
	"fmt"
	"runtime/debug"
	"time"

	"github.com/grandcat/zeroconf"
)

// Runs the MDNS Scan once, waiting for 10 seconds for any MDNS packets to come in before closing
func queryMDNS() {
	// for i := 0; i < 1; i++ {
	resolver, err := zeroconf.NewResolver(nil)
	if err != nil {
		fmt.Println("drivers.go->queryMDNS", "Failed to initialize mdns resolver:"+err.Error())
	}

	if resolver == nil { //On a machine that cannot resolve a network interface.
		return
	}

	ajowsTCP := make(chan int)

	ajowsEntries := make(chan *zeroconf.ServiceEntry)
	go processMDNSResults(ajowsEntries, ajowsTCP)
	// go processMDNSResults(ajowsEntries)

	ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*5000)
	// ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	err = resolver.Browse(ctx, "_ajows._tcp", "local.", ajowsEntries)
	if err != nil {
		fmt.Println("drivers.go->queryMDNS", "Failed to browse:"+err.Error())
		ajowsTCP <- 0
	}

	<-ajowsTCP
	// time.Sleep(time.Millisecond * 2000)
	// }

}

// Process the responses from the mdns scan
// func processMDNSResults(results <-chan *zeroconf.ServiceEntry) {
func processMDNSResults(results <-chan *zeroconf.ServiceEntry, wait chan int) {

	defer func() {
		if r := recover(); r != nil {
			fmt.Println("\n\nPanic Stack: " + string(debug.Stack()))
			return
		}
	}()

	// for omni latest firmwares, it has more than 3 Text fields including the model
	// and unique id fields
	for entry := range results {
		if len(entry.Text) > 3 {
			// entry.Text: [txtvers=1 ws=/wsapp/ model=at-omni-122 uniqueID=at-omni-122-00381]
			// entry.Text[2]: model=at-omni-122
			fmt.Println(entry.AddrIPv4[0], entry.Text[2])
		} else {
			fmt.Println(entry.AddrIPv4[0], entry.HostName)
		}
	}

	wait <- 0
}

func main() {

	queryMDNS()

}

And then I swapped the example with this better library:

package main

import (
	"fmt"
	"github.com/hashicorp/mdns"
)

func main() {

entriesCh := make(chan *mdns.ServiceEntry, 4)
go func() {
    for entry := range entriesCh {
        fmt.Printf("Got new entry: %v\n", entry)
    }
}()

// Start the lookup
mdns.Lookup("_ajows._tcp", entriesCh)
close(entriesCh)

}
@grandcat
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Owner

Actually, I started with repository as hashicorp/mdns had unreliability issues I tested it for.
This was the reason why this repo exists.

As it is mDNS, it highly depends on the environment and configuration.
The only thing I can imagine why it might vary is that it supports both IPv4 and IPv6, but handles incoming packets on a FCFS basis. There is an open issue for that: #27 .

Otherwise, feel free to use whatever library which works better. And: PRs welcome.

@davidrenne
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Author

Cool thanks for the intel. I might try a third library too!

@davidrenne
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The first round of testing for us using the other library is showing that at first scan we get all our results but subsequently (without recompile of a go main) we get less and less resulting coming back from the channel.

Is this why you started zerconf?

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@davidrenne @grandcat