SIP INVITE via LoadBalaner with Require Incoming Auth Enabled

Yeti-Switch
6

Dmitry,

If credentials are not saved in the auth database, then how can it successfully register (SIP REGISTER) via loadBalancer and successfully send SIP INVITE requests directly to SEMS? it shouldn’t right?

The issue here seems to be very specific to SIP INVITE requests only via LoadBalancer.

Here is the full trace:

  • 1.1.1.1:1046 - PC IP
  • 2.2.2.2:5060 - LB IP
  • 2.2.2.3:7000 - SEMS IP

From SIP Client to LoadBalacer (I have masked few sensitive information)

2020/01/21 09:23:11.319909 1.1.1.1:1046 -> 2.2.2.2:5060
INVITE sip:6141111111@2.2.2.2;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
Max-Forwards: 70
Contact: sip:61811111111@1.1.1.1:1046;transport=UDP
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE
Content-Type: application/sdp
Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri
User-Agent: Z 3.6.25251 r25476
Allow-Events: presence, kpml
Content-Length: 237

v=0
o=Z 0 0 IN IP4 1.1.1.1
s=Z
c=IN IP4 1.1.1.1
t=0 0
m=audio 8000 RTP/AVP 3 110 8 0 98 101
a=rtpmap:110 speex/8000
a=rtpmap:98 iLBC/8000
a=fmtp:98 mode=20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv

2020/01/21 09:23:11.320490 2.2.2.2:5060 -> 1.1.1.1:1046
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
Content-Length: 0

2020/01/21 09:23:11.320574 2.2.2.2:5060 -> 2.2.2.3:7000
INVITE sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bKc7cd.9e96c57612b68c34e6ac9941be03fb48.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
Max-Forwards: 69
Contact: sip:61811111111@1.1.1.1:1046;transport=UDP
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE
Content-Type: application/sdp
Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri
User-Agent: Z 3.6.25251 r25476
Allow-Events: presence, kpml
Content-Length: 237
X-ORIG-IP: 1.1.1.1
X-ORIG-PORT: 1046
X-ORIG-PROTO: 1

v=0
o=Z 0 0 IN IP4 1.1.1.1
s=Z
c=IN IP4 1.1.1.1
t=0 0
m=audio 8000 RTP/AVP 3 110 8 0 98 101
a=rtpmap:110 speex/8000
a=rtpmap:98 iLBC/8000
a=fmtp:98 mode=20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv

2020/01/21 09:23:11.321875 2.2.2.3:7000 -> 2.2.2.2:5060
SIP/2.0 100 Connecting
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bKc7cd.9e96c57612b68c34e6ac9941be03fb48.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.331693 2.2.2.3:7000 -> 2.2.2.2:5060
SIP/2.0 401 Unauthorized
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bKc7cd.9e96c57612b68c34e6ac9941be03fb48.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-4BC525CA-5E26284F0005100F-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
WWW-Authenticate: Digest realm=“sems1.s.com”, qop=“auth,auth-int”, nonce=“Fa392da870f96fc863a1290587c5fd5f3”
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.331800 2.2.2.2:5060 -> 2.2.2.3:7000
ACK sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bKc7cd.9e96c57612b68c34e6ac9941be03fb48.0
Max-Forwards: 69
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-4BC525CA-5E26284F0005100F-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 ACK
Content-Length: 0

2020/01/21 09:23:11.331909 2.2.2.2:5060 -> 1.1.1.1:1046
SIP/2.0 401 Unauthorized
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-4BC525CA-5E26284F0005100F-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
WWW-Authenticate: Digest realm=“sems1.s.com”, qop=“auth,auth-int”, nonce=“Fa392da870f96fc863a1290587c5fd5f3”
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.353927 1.1.1.1:1046 -> 2.2.2.2:5060
ACK sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
Max-Forwards: 70
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-4BC525CA-5E26284F0005100F-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 ACK
Content-Length: 0

2020/01/21 09:23:11.362695 1.1.1.1:1046 -> 2.2.2.2:5060
INVITE sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
Max-Forwards: 70
Contact: sip:61811111111@1.1.1.1:1046;transport=UDP
To: sip:61411111111@2.2.2.2;transport=UDP
From: “61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE
Content-Type: application/sdp
Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri
User-Agent: Z 3.6.25251 r25476
Authorization: Digest username=“61811111111”,realm=“sems1.s.com”,nonce=“Fa392da870f96fc863a1290587c5fd5f3”,uri="sip:61411111111@2.2.2.2;transport=UDP”,response=“3a59a1d7793
e62e19904bf9a6de240”,cnonce=“8ff1431f884a02c11b642024665”,nc=00000001,qop=auth-int,algorithm=MD5
Allow-Events: presence, kpml
Content-Length: 237

v=0
o=Z 0 0 IN IP4 1.1.1.1
s=Z
c=IN IP4 1.1.1.1
t=0 0
m=audio 8000 RTP/AVP 3 110 8 0 98 101
a=rtpmap:110 speex/8000
a=rtpmap:98 iLBC/8000
a=fmtp:98 mode=20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv

2020/01/21 09:23:11.362959 2.2.2.2:5060 -> 1.1.1.1:1046
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
Content-Length: 0

2020/01/21 09:23:11.363021 2.2.2.2:5060 -> 2.2.2.3:7000
INVITE sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK97cd.a6298049075e61665740bfd02e633007.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
Max-Forwards: 69
Contact: sip:61811111111@1.1.1.1:1046;transport=UDP
To: sip:61411111111@2.2.2.2;transport=UDP
From: “61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE
Content-Type: application/sdp
Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri
User-Agent: Z 3.6.25251 r25476
Authorization: Digest username=“61811111111”,realm=“sems1.s.com”,nonce=“Fa392da870f96fc863a1290587c5fd5f3”,uri="sip:61411111111@2.2.2.2;transport=UDP”,response=“3a59a1d7793
e62e19904bf9a6de240”,cnonce=“8ff1431f884a02c11b642024665”,nc=00000001,qop=auth-int,algorithm=MD5
Allow-Events: presence, kpml
Content-Length: 237
X-ORIG-IP: 1.1.1.1
X-ORIG-PORT: 1046
X-ORIG-PROTO: 1

v=0
o=Z 0 0 IN IP4 1.1.1.1
s=Z
c=IN IP4 1.1.1.1
t=0 0
m=audio 8000 RTP/AVP 3 110 8 0 98 101
a=rtpmap:110 speex/8000
a=rtpmap:98 iLBC/8000
a=fmtp:98 mode=20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv

2020/01/21 09:23:11.363673 2.2.2.3:7000 -> 2.2.2.2:5060
SIP/2.0 100 Connecting
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK97cd.a6298049075e61665740bfd02e633007.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.364025 2.2.2.3:7000 -> 2.2.2.2:5060
SIP/2.0 401 Unauthorized
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK97cd.a6298049075e61665740bfd02e633007.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-186F88FB-5E26284F00058E5E-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
WWW-Authenticate: Digest realm=“sems1.s.com”, qop=“auth,auth-int”, nonce=“Fa392da870f96fc863a1290587c5fd5f3”
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.364143 2.2.2.2:5060 -> 2.2.2.3:7000
ACK sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK97cd.a6298049075e61665740bfd02e633007.0
Max-Forwards: 69
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-186F88FB-5E26284F00058E5E-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 ACK
Content-Length: 0

2020/01/21 09:23:11.364247 2.2.2.2:5060 -> 1.1.1.1:1046
SIP/2.0 401 Unauthorized
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-186F88FB-5E26284F00058E5E-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
WWW-Authenticate: Digest realm=“sems1.s.com”, qop=“auth,auth-int”, nonce=“Fa392da870f96fc863a1290587c5fd5f3”
Server: SBC 1.8.34-5
Content-Length: 0

From LoadBalancer to SEMS

2020/01/21 09:23:11.321115 2.2.2.2:5060 -> 2.2.2.3:7000
INVITE sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bKc7cd.9e96c57612b68c34e6ac9941be03fb48.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
Max-Forwards: 69
Contact: sip:61811111111@1.1.1.1:1046;transport=UDP
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE
Content-Type: application/sdp
Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri
User-Agent: Z 3.6.25251 r25476
Allow-Events: presence, kpml
Content-Length: 237
X-ORIG-IP: 1.1.1.1
X-ORIG-PORT: 1046
X-ORIG-PROTO: 1

v=0
o=Z 0 0 IN IP4 1.1.1.1
s=Z
c=IN IP4 1.1.1.1
t=0 0
m=audio 8000 RTP/AVP 3 110 8 0 98 101
a=rtpmap:110 speex/8000
a=rtpmap:98 iLBC/8000
a=fmtp:98 mode=20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv

2020/01/21 09:23:11.322105 2.2.2.3:7000 -> 2.2.2.2:5060
SIP/2.0 100 Connecting
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bKc7cd.9e96c57612b68c34e6ac9941be03fb48.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.331859 2.2.2.3:7000 -> 2.2.2.2:5060
SIP/2.0 401 Unauthorized
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bKc7cd.9e96c57612b68c34e6ac9941be03fb48.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-18cad64f26ce0543-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-4BC525CA-5E26284F0005100F-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 INVITE
WWW-Authenticate: Digest realm=“ytrtp-sems1-syd.sipvoice.com.au”, qop=“auth,auth-int”, nonce=“Fa392da870f96fc863a1290587c5fd5f3”
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.332337 2.2.2.2:5060 -> 2.2.2.3:7000
ACK sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bKc7cd.9e96c57612b68c34e6ac9941be03fb48.0
Max-Forwards: 69
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-4BC525CA-5E26284F0005100F-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 1 ACK
Content-Length: 0

2020/01/21 09:23:11.363492 2.2.2.2:5060 -> 2.2.2.3:7000
INVITE sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK97cd.a6298049075e61665740bfd02e633007.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
Max-Forwards: 69
Contact: sip:61811111111@1.1.1.1:1046;transport=UDP
To: sip:61411111111@2.2.2.2;transport=UDP
From: “61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE
Content-Type: application/sdp
Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri
User-Agent: Z 3.6.25251 r25476
Authorization: Digest username=“61811111111”,realm=“sems1.s.com”,nonce=“Fa392da870f96fc863a1290587c5fd5f3”,uri="sip:61411111111@2.2.2.2;transport=UDP”,response=“3a59a1d7793
e62e19904bf9a6de240”,cnonce=“8ff1431f884a02c11b642024665”,nc=00000001,qop=auth-int,algorithm=MD5
Allow-Events: presence, kpml
Content-Length: 237
X-ORIG-IP: 1.1.1.1
X-ORIG-PORT: 1046
X-ORIG-PROTO: 1

v=0
o=Z 0 0 IN IP4 1.1.1.1
s=Z
c=IN IP4 1.1.1.1
t=0 0
m=audio 8000 RTP/AVP 3 110 8 0 98 101
a=rtpmap:110 speex/8000
a=rtpmap:98 iLBC/8000
a=fmtp:98 mode=20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv

2020/01/21 09:23:11.363950 2.2.2.3:7000 -> 2.2.2.2:5060
SIP/2.0 100 Connecting
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK97cd.a6298049075e61665740bfd02e633007.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.364183 2.2.2.3:7000 -> 2.2.2.2:5060
SIP/2.0 401 Unauthorized
Record-Route: sip:2.2.2.2;lr;ftag=32062478
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK97cd.a6298049075e61665740bfd02e633007.0
Via: SIP/2.0/UDP 1.1.1.1:1046;branch=z9hG4bK-d8754z-fe048f983d100ce3-1—d8754z-
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-186F88FB-5E26284F00058E5E-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 INVITE
WWW-Authenticate: Digest realm=“sems1.s.com”, qop=“auth,auth-int”, nonce=“Fa392da870f96fc863a1290587c5fd5f3”
Server: SBC 1.8.34-5
Content-Length: 0

2020/01/21 09:23:11.364672 2.2.2.2:5060 -> 2.2.2.3:7000
ACK sip:61411111111@2.2.2.2;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 2.2.2.2;branch=z9hG4bK97cd.a6298049075e61665740bfd02e633007.0
Max-Forwards: 69
To: sip:61411111111@2.2.2.2;transport=UDP;tag=8-186F88FB-5E26284F00058E5E-C5489700
From: "61811111111"sip:61811111111@2.2.2.2;transport=UDP;tag=32062478
Call-ID: OTEzYTU5YTBkYTI3YWFhYTU0OGUzNGFlZWZjYTk5M2E.
CSeq: 2 ACK
Content-Length: 0