[c-nsp] Passing SOAP through PIX

[Alexander Serkin]

Recently we noticed that the HTTP POST request containing SOAP 
application is not passed through the PIX (7.1(2)) with default 
inspection rule.
The message is (decoded from Ethereal packet dump):
--------------------------------------------
Hypertext Transfer Protocol
POST /rcu/rc.asmx HTTP/1.1\r\n
Request Method: POST
Request URI: /rcu/rc.asmx
Request Version: HTTP/1.1
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client 
Protocol 2.0.50727.42)\r\n
Content-Type: text/xml; charset=utf-8\r\n
SOAPAction: "http://tempuri.org/SherpWS/Service1/Execute1"\r\n
Host: 10.x.x.x\r\n
Content-Length: 416\r\n
Expect: 100-continue\r\n
Connection: Keep-Alive\r\n
\r\n
eXtensible Markup Language
<?xml
version="1.0"
encoding="utf-8"
?>
<soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body>
<Execute1
xmlns="http://tempuri.org/SherpWS/Service1">
<QueryCode>
BS_Balance_Get
</QueryCode>
<Parameters>
i_DN=XXXXXXXXXX,i_ExtParam=$SUBSYSTEM=WINSP
</Parameters>
</Execute1>
</soap:Body>
</soap:Envelope>
-------------------------------------
And the error reported is:
%PIX-5-415008:1 HTTP RFC method illegal - 'POST' from 10.x.x.x to srv03

What is wrong with the request so that pix does not allow it through?

-- 
Sincerely Yours,
Alexander