[Spce-user] kamailio hangs out after got call from anonymous

[Tóth Csaba]

Dear SipWise Team,

i use mr3.8.1 version.
Have a new customer, who uses a Avaya IP Office. When they make an
anonymous call the kamailio "crash", and from that don't accept any
other register from that host. Just a restart helps (but i restart both
of the proxy and lb, don't know which one solvs the issue).

The subscriber makes this call:

INVITE sip:BNUMBER at DOMAIN SIP/2.0
Via: SIP/2.0/UDP
89.xx.xx.xx:5060;rport;branch=z9hG4bK9471122e5c5572b28fffd346d1f642f8
From: "Anonymous" <sip:anonymous at anonymous.invalid>;tag=7de012ee906d7bd5
To: <sip:BNUMBER at DOMAIN>
Call-ID: b6d1c9ab095bdf9e975810897ae3010a
CSeq: 153349233 INVITE
Contact: <sip:anonymous at 89.xx.xx.xx:5060;transport=udp>
Authorization: Digest
username="USERNAME",realm="DOMAIN",nonce="NONCE",response="RESP",uri="sip:BNUMBER at DOMAIN"
Max-Forwards: 70
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY,UPDATE
Content-Type: application/sdp
Supported: timer
User-Agent: IP Office 9.0.5.0 build 972
Privacy: id
P-Asserted-Identity: "USERNAME" <sip:USERNAME at 192.168.48.3:5060>
Content-Length: 300

v=0
o=UserA ..... ..... IN IP4 89.xx.xx.xx
s=Session SDP
c=IN IP4 89.xx.xx.xx
t=0 0
m=audio 49154 RTP/AVP 8 0 18 4 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:4 G723/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15


SipWise NGCP system sends back a 407 reauth:

SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP
89.xx.xx.xx:5060;rport=5060;branch=z9hG4bK9471122e5c5572b28fffd346d1f642f8
From: "Anonymous" <sip:anonymous at anonymous.invalid>;tag=7de012ee906d7bd5
To: <sip:BNUMBER at DOMAIN>;tag=1d24a28a0bded6c40d31e6db8aab9ac6.f9b1
Call-ID: b6d1c9ab095bdf9e975810897ae3010a
CSeq: 153349233 INVITE
P-NGCP-Auth-IP: 89.xx.xx.xx
P-NGCP-Auth-UA: IP Office 9.0.5.0 build 972
P-NGCP-Caller-Info: <sip:USER at DOMAIN>;ip=89.xx.xx.xx;port=5060
Proxy-Authenticate: Digest realm="anonymous.invalid", nonce="NONCE"
Server: Sipwise NGCP Proxy 3.X
Content-Length: 0




Here the realm changed. And after this the Avaya tries to authenticate
using this realm, but fails all the time. Only the restart of the two
kamailio helps.

What can be wrong?

I can send the full pcap in private if that helps.

Thanks in advance!
Csaba Tóth