Sip read: REGISTER sip:192.168.1.101 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.100:12250 From: <sip:1111@192.168.1.101>;tag=1e263406-3e84-45fb-a971-6f08bf684275 To: <sip:1111@192.168.1.101> Call-ID: 3aef9010-eda5-44b7-9515-fc34c97dbb21@192.168.1.100 CSeq: 1 REGISTER Contact: <sip:192.168.1.100:12250>;methods="INVITE, MESSAGE, INFO, SUBSCRIBE, OPTIONS, BYE, CANCEL, NOTIFY, ACK" User-Agent: Windows RTC/1.0 Expires: 1200 Event: registration Allow-Events: presence Content-Length: 0 12 headers, 0 lines Using latest request as basis request Sending to 192.168.1.100 : 12250 (non-NAT) Transmitting (no NAT): SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 192.168.1.100:12250 From: <sip:1111@192.168.1.101>;tag=1e263406-3e84-45fb-a971-6f08bf684275 To: <sip:1111@192.168.1.101>;tag=as3f2ea3e5 Call-ID: 3aef9010-eda5-44b7-9515-fc34c97dbb21@192.168.1.100 CSeq: 1 REGISTER User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER Contact: <sip:1111@192.168.1.101> Content-Length: 0 to 192.168.1.100:12250 Mar 30 18:35:28 NOTICE[1125329600]: chan_sip.c:5609 handle_request: Registration from '<sip:1111@192.168.1.101>' failed for '192.168.1.100'