Connection Attack

Hi everybody,

I have a serius problem about trunk connections.

My sip provider blocking my server ip for connection attack.

I Checked full log file but i cant find reason why my asterisk doing connection attack.

My version is:
Asterisk 11.7.0 built by palosanto

[2014-04-07 04:05:04] NOTICE[2707] chan_sip.c: Peer '999' is now UNREACHABLE! Last qualify: 844 [2014-04-07 04:05:24] NOTICE[2707] chan_sip.c: Peer '101' is now UNREACHABLE! Last qualify: 395 [2014-04-07 04:05:29] NOTICE[2707] chan_sip.c: Peer '998' is now UNREACHABLE! Last qualify: 3084 [2014-04-07 04:06:11] ERROR[2707] netsock2.c: getaddrinfo("sip.verimor.com.tr", "(null)", ...): Name or service not known [2014-04-07 04:06:11] WARNING[2707] acl.c: Unable to lookup 'sip.verimor.com.tr' [2014-04-07 04:06:11] NOTICE[2707] chan_sip.c: -- Registration for '[email protected]' timed out, trying again (Attempt #2) [2014-04-07 04:06:13] VERBOSE[2707] chan_sip.c: -- Registered SIP '998' at 178.XXX.XXX.XXX:54242 [2014-04-07 04:06:17] NOTICE[2707] chan_sip.c: Peer '998' is now UNREACHABLE! Last qualify: 0 [2014-04-07 04:06:27] NOTICE[2707] chan_sip.c: Peer '101' is now UNREACHABLE! Last qualify: 2002 [2014-04-07 04:07:11] ERROR[2707] netsock2.c: getaddrinfo("sip.verimor.com.tr", "(null)", ...): Name or service not known [2014-04-07 04:07:11] WARNING[2707] acl.c: Unable to lookup 'sip.verimor.com.tr' [2014-04-07 04:07:11] NOTICE[2707] chan_sip.c: -- Registration for '[email protected]' timed out, trying again (Attempt #3) [2014-04-07 04:08:11] ERROR[2707] netsock2.c: getaddrinfo("sip.verimor.com.tr", "(null)", ...): Name or service not known