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From: | Erik Ekman |
Subject: | Re: [lwip-users] mDNS strange behavior using "dig" |
Date: | Tue, 17 Apr 2018 14:43:25 +0200 |
Hi All,
I have a small problem.
I am sending queries to my MDNS REsponder using *dig*. However, the behavior
is strange to me
1) dig @10.10.0.10 -p5353 myssh._ssh._tcp.local srv, HERE I get a correct
answer.
PROBLEM
2)dig @224.0.0.251 -p5353 myssh._ssh._tcp.local srv HERE I GET
NOTHING..Timeout.
I use the last command to query a MDNS service on other machine and I get an
answer..
Am I missing something? Why when MCAST addr is specified my service does not
respond ?
Logs..
dig @10.10.0.10 -p5353 myssh._ssh._tcp.local srv
CORRECT...
; <<>> DiG 9.10.3-P4-Ubuntu <<>> @10.10.0.10 -p5353 myssh._ssh._tcp.local
srv
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53108
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; QUESTION SECTION:
;myssh._ssh._tcp.local. IN SRV
;; ANSWER SECTION:
myssh._ssh._tcp.local. 3600 IN SRV 0 0 22 lwip.local.
;; ADDITIONAL SECTION:
lwip.local. 3600 IN A 10.10.0.10
;; Query time: 27 msec
;; SERVER: 10.10.0.10#5353(10.10.0.10)
;; WHEN: Tue Apr 17 12:03:25 CEST 2018
;; MSG SIZE rcvd: 116
TIMEOUT..
dig @224.0.0.251 -p5353 myssh._ssh._tcp.local srv
; <<>> DiG 9.10.3-P4-Ubuntu <<>> @224.0.0.251 -p5353 myssh._ssh._tcp.local
srv
; (1 server found)
;; global options: +cmd
;; connection timed out; no servers could be reached
--
Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html
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