asterisk users - Sep 2017 - dnsmgr - lots of entries for the same host

Hello everybody,

I am seeing a strange problem on Asterisk 1.8 with dnsmgr.

The number of entries in DNS Manager seems to be growing steadily and all are
pointing to the sama host - a SIP trunk to a local provider, which uses SRV
lookup.

So, when DNS manager refreshes, there are 6000+ messages like that:

ast_get_srv: SRV lookup for '_sip._udp.pbx.<provider>.ee' mapped
to host proxy1a.pbx.<provider>.ee, port 5060
ast_get_srv: SRV lookup for '_sip._udp.pbx.<provider>.ee' mapped
to host proxy1a.pbx.<provider>.ee, port 5060
ast_get_srv: SRV lookup for '_sip._udp.pbx.<provider>.ee' mapped
to host proxy1a.pbx.<provider>.ee, port 5060
ast_get_srv: SRV lookup for '_sip._udp.pbx.<provider>.ee' mapped
to host proxy1a.pbx.<provider>.ee, port 5060

'dnsmgr status' shows:

DNS Manager: enabled
Refresh Interval: 300 seconds
Number of entries: 6718

dnsmgr.conf is just 

[general]
enable=yes

Any ideas what could be wrong?

-- 
Greetings,


marie