1 0.000000 192.168.100.66 192.168.100.254 DNS 70 Standard query 0xfe74 NAPTR cz.domain.tld Frame 1: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 16485, Dst Port: 53 Domain Name System (query) 2 0.004000 192.168.100.254 192.168.100.66 DNS 132 Standard query response 0xfe74 NAPTR cz.domain.tld SOA router.domain.tld Frame 2: 132 bytes on wire (1056 bits), 132 bytes captured (1056 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 16485 Domain Name System (response) 3 0.008000 192.168.100.66 192.168.100.254 DNS 81 Standard query 0xd5d0 SRV _sips._TCP.cz.domain.tld Frame 3: 81 bytes on wire (648 bits), 81 bytes captured (648 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 62765, Dst Port: 53 Domain Name System (query) 4 0.010000 192.168.100.254 192.168.100.66 DNS 143 Standard query response 0xd5d0 No such name SRV _sips._TCP.cz.domain.tld SOA router.domain.tld Frame 4: 143 bytes on wire (1144 bits), 143 bytes captured (1144 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 62765 Domain Name System (response) 5 0.011000 192.168.100.66 192.168.100.254 DNS 89 Standard query 0xec8b SRV _sips._TCP.cz.domain.tld.domain.tld Frame 5: 89 bytes on wire (712 bits), 89 bytes captured (712 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 56929, Dst Port: 53 Domain Name System (query) 6 0.015000 192.168.100.254 192.168.100.66 DNS 151 Standard query response 0xec8b SRV _sips._TCP.cz.domain.tld.domain.tld SOA router.domain.tld Frame 6: 151 bytes on wire (1208 bits), 151 bytes captured (1208 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 56929 Domain Name System (response) 7 0.016000 192.168.100.66 192.168.100.254 DNS 80 Standard query 0xb96f SRV _sip._TCP.cz.domain.tld Frame 7: 80 bytes on wire (640 bits), 80 bytes captured (640 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 27963, Dst Port: 53 Domain Name System (query) 8 0.017000 192.168.100.254 192.168.100.66 DNS 142 Standard query response 0xb96f No such name SRV _sip._TCP.cz.domain.tld SOA router.domain.tld Frame 8: 142 bytes on wire (1136 bits), 142 bytes captured (1136 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 27963 Domain Name System (response) 9 0.018000 192.168.100.66 192.168.100.254 DNS 88 Standard query 0xf067 SRV _sip._TCP.cz.domain.tld.domain.tld Frame 9: 88 bytes on wire (704 bits), 88 bytes captured (704 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 32592, Dst Port: 53 Domain Name System (query) 10 0.020000 192.168.100.254 192.168.100.66 DNS 150 Standard query response 0xf067 SRV _sip._TCP.cz.domain.tld.domain.tld SOA router.domain.tld Frame 10: 150 bytes on wire (1200 bits), 150 bytes captured (1200 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 32592 Domain Name System (response) 11 0.021000 192.168.100.66 192.168.100.254 DNS 80 Standard query 0x164a SRV _sip._UDP.cz.domain.tld Frame 11: 80 bytes on wire (640 bits), 80 bytes captured (640 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 41719, Dst Port: 53 Domain Name System (query) 12 0.022000 192.168.100.254 192.168.100.66 DNS 142 Standard query response 0x164a No such name SRV _sip._UDP.cz.domain.tld SOA router.domain.tld Frame 12: 142 bytes on wire (1136 bits), 142 bytes captured (1136 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 41719 Domain Name System (response) 13 0.023000 192.168.100.66 192.168.100.254 DNS 88 Standard query 0x8ba6 SRV _sip._UDP.cz.domain.tld.domain.tld Frame 13: 88 bytes on wire (704 bits), 88 bytes captured (704 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 46204, Dst Port: 53 Domain Name System (query) 14 0.024000 192.168.100.254 192.168.100.66 DNS 150 Standard query response 0x8ba6 SRV _sip._UDP.cz.domain.tld.domain.tld SOA router.domain.tld Frame 14: 150 bytes on wire (1200 bits), 150 bytes captured (1200 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 46204 Domain Name System (response) 15 0.025000 192.168.100.66 192.168.100.254 DNS 70 Standard query 0x35c1 A cz.domain.tld Frame 15: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 40906, Dst Port: 53 Domain Name System (query) 16 0.029000 192.168.100.254 192.168.100.66 DNS 86 Standard query response 0x35c1 A cz.domain.tld A 5.6.7.8 Frame 16: 86 bytes on wire (688 bits), 86 bytes captured (688 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 40906 Domain Name System (response) 17 0.030000 192.168.100.66 192.168.100.254 DNS 70 Standard query 0x3afe AAAA cz.domain.tld Frame 17: 70 bytes on wire (560 bits), 70 bytes captured (560 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.66, Dst: 192.168.100.254 User Datagram Protocol, Src Port: 44127, Dst Port: 53 Domain Name System (query) 18 0.034000 192.168.100.254 192.168.100.66 DNS 132 Standard query response 0x3afe AAAA cz.domain.tld SOA router.domain.tld Frame 18: 132 bytes on wire (1056 bits), 132 bytes captured (1056 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 192.168.100.254, Dst: 192.168.100.66 User Datagram Protocol, Src Port: 53, Dst Port: 44127 Domain Name System (response) 19 0.089000 0.0.0.0 5.6.7.8 SIP 508 Request: REGISTER sip:cz.domain.tld (1 binding) | Frame 19: 508 bytes on wire (4064 bits), 508 bytes captured (4064 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 0.0.0.0, Dst: 5.6.7.8 User Datagram Protocol, Src Port: 5060, Dst Port: 5060 Session Initiation Protocol (REGISTER) 20 0.591000 0.0.0.0 5.6.7.8 SIP 508 Request: REGISTER sip:cz.domain.tld (1 binding) | Frame 20: 508 bytes on wire (4064 bits), 508 bytes captured (4064 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 0.0.0.0, Dst: 5.6.7.8 User Datagram Protocol, Src Port: 5060, Dst Port: 5060 Session Initiation Protocol (REGISTER) 21 1.591000 0.0.0.0 5.6.7.8 SIP 508 Request: REGISTER sip:cz.domain.tld (1 binding) | Frame 21: 508 bytes on wire (4064 bits), 508 bytes captured (4064 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 0.0.0.0, Dst: 5.6.7.8 User Datagram Protocol, Src Port: 5060, Dst Port: 5060 Session Initiation Protocol (REGISTER) 22 3.591000 0.0.0.0 5.6.7.8 SIP 508 Request: REGISTER sip:cz.domain.tld (1 binding) | Frame 22: 508 bytes on wire (4064 bits), 508 bytes captured (4064 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 0.0.0.0, Dst: 5.6.7.8 User Datagram Protocol, Src Port: 5060, Dst Port: 5060 Session Initiation Protocol (REGISTER) 23 5.653000 5.6.7.8 0.0.0.0 SIP 627 Status: 500 I'm terribly sorry, server error occured (2/TM) | Frame 23: 627 bytes on wire (5016 bits), 627 bytes captured (5016 bits) Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00) Internet Protocol Version 4, Src: 5.6.7.8, Dst: 0.0.0.0 User Datagram Protocol, Src Port: 5060, Dst Port: 5060 Session Initiation Protocol (500)