I have some Cisco IP Telephones that were working in a network with a server. I pick up this equipaments and put in a new network and in this new environment the equipaments didn’t register in the server and I can’t detect why it.
I made a tcpdump and detect this packets.
IP 172.31.3.118.5060 > 168.121.182.0.12909: UDP, length 591
E…kiq@.@…v.y…2m.W.xSIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP x.121.x.0:12909;rport=12909;received=x.121.x.0;branch=z9hG4bKPjrvINfxPfAVSLNBxjkv-0MhxcO7.pEgLr
Call-ID: fUOr9m3jPk3dKIfX0YgrEEQcLUjOac24
From: “Instalacao” sip:21015015@xx.2.x.x;tag=MNcg3YA855h42PHgbgLZOqKqyh.7b35c
To: “Instalacao” sip:21015015@xx.233.x.x;tag=z9hG4bKPjrvINfxPfAVSLNBxjkv-0MhxcO7.pEgLr
CSeq: 58419 REGISTER
WWW-Authenticate: Digest realm=“asterisk”,nonce=“1562093304/8a7559eabc7a812cc8194bd931ba8510”,opaque=“0d3d0762268ef8d7”,algorithm=md5,qop=“auth”
Server: Asterisk PBX 13.21.1
Content-Length: 0
Can anyone help me interpret it?