Hi I am trying to register a set of users to my test PBX using SIPP. However
I getting some issues as below
1. On the captures I get UDP checksum incorrect for all the SIP messages
that I send out
2. Once I send out the register request I get a 401 unauthorized to which I
send a register with Authentication information however I get a 401 again.
3. Also I noticed on the captures that the second register request does not
have a content length information. Also the capturing tool(wireshark)
indicates malformed SIP packet.
 I am attaching my xml csv file and two capture files, the first capture
file has sucessful registration using a normal phone. the second capture has
a SIPP registration failure captures.

Thanking you all in advance for your help
-Harsh
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE scenario SYSTEM "sipp.dtd">

<scenario name="UAC Basic Registration">
  <label id="0" />
  <send retrans="500" start_rtd="true">
    <![CDATA[
      REGISTER sip:[field1] SIP/2.0
      From: [field0] <sip:[EMAIL PROTECTED]>;tag=[call_number]
      To: [field0] <sip:[EMAIL PROTECTED]>
      Call-ID: [call_id]
      CSeq: [cseq] REGISTER
      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
      Max-Forwards: 70
      Supported: 100rel,replaces
      User-Agent: Vertical SIPP TEST TOOL
      Contact: [field0] <sip:[EMAIL PROTECTED]:[local_port]>;expires=3600
      Content-Length: 0
    ]]>
  </send>
  <recv response="200" rtd="true" next="3" optional="true" />
  <recv response="403" rtd="true" next="2" optional="true" />
  <recv response="404" rtd="true" next="2" optional="true" />
  <recv response="401" rtd="true" next="1" auth="true" />

 <label id="1" />
  <send retrans="500" start_rtd="true">
    <![CDATA[
      REGISTER sip:[field1] SIP/2.0
      From: [field0] <sip:[EMAIL PROTECTED]>;tag=[call_number]
      To: [field0] <sip:[EMAIL PROTECTED]>
      Call-ID: [call_id]
      CSeq: [cseq] REGISTER
      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
      Max-Forwards: 70     
      Contact: [field0] <sip:[EMAIL PROTECTED]:[local_port]>;expires=3600
      [field2]
      Content-Length: 0
    ]]>
  </send>
 <recv response="400" rtd="true" next="2" optional="true" />
  <recv response="403" rtd="true" next="2" optional="true" />
    <recv response="404" rtd="true" next="2" optional="true" />
  <recv response="200" rtd="true" next="3" crlf="true" />

 <label id="2" />
  <nop>
    <action>
      <exec int_cmd="stop_call" />
    </action>
  </nop>

  <label id="3" />
  <!-- Definition of the response time repartition table (unit is ms). -->
  <ResponseTimeRepartition value="30, 50, 80, 100, 150, 200, 300, 400, 500, 600, 700, 1000, 1200, 1400, 1500" />

  <!-- Definition of the call length repartition table (unit is ms). -->
  <CallLengthRepartition value="30, 50, 80, 100, 150, 200, 300, 400, 500, 600, 700, 1000, 1200, 1400, 1500" />
</scenario>

SEQUENTIAL
103;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=103];
104;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=104];
105;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=105];
106;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=106];
107;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=107];
108;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=108];
109;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=109];
110;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=110];
111;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=111];
112;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=112];
113;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=113];
114;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=114];
115;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=115];
116;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=116];
117;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=117];
118;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=118];
119;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=119];
120;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=120];
121;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=121];
122;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=122];
123;192.168.1.1:5060;[authentication [EMAIL PROTECTED] password=123];

Attachment: register_simple_call
Description: Binary data

Attachment: sipp_register
Description: Binary data

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