Communication problem between external web server and SAP WebAS

[Former Member]

Hello Experts,

We are having a serious problem over here where we had one external server is pushing XML string using a HTTP-POST request to our SAP WebAS server (a BSP application is handling this request). We are not able to see the request coming to SAP i.e. SAP-BSP is not receiving XML.

Also we found that, if request is routed through another proxy server (apache tomcat server redireting the request) connected through VPN to our network, it works but if the the same server is inside our network it doesn't. Rather in that case it never hits the Apache-Tomcat server itself.

We tried to identify the network issue but it seems it is not the network or any firewall issue. When we had a small Echo server (itu2019s a small Java server) running on our SAP machine, we could see the request coming in. So it is definitely reaching the SAP server but the SAP Web AS is not picking up. Rather what we found that if the URL is simple e.g. http://<hostname>:<port>; it works but if the URL is complex like something generated by SAP incase of BSP application it doesn't.

Any idea what is causing this issue?

I tried to look at SMICM trace files but got nothing. Any idea where would find the trace of incoming HTTP requests to SAP WebAS?

Thanks in advance.

regards

rajeev

[Former Member · Accepted solution]

Hi Rajeev,

Pelase find the below link. i am not sure this is the exactly one for you. But i hope it'll help you.

http://www.sdn.sap.com/irj/scn/weblogs;jsessionid=(J2EE3417800)ID0350917650DB11174011760851503410End...

http://www.sap-img.com/basis/basis-faq.htm

Regards,

CSK.

[Former Member]

Hi,

>Any idea where would find the trace of incoming HTTP requests to SAP WebAS?

Transaction SMICM --> Goto --> HHTP Log --> Server --> Display entries

You can also increase the ICM trace level and display the trace file.

Regards,

Olivier

[Former Member]

Thanks for the replies. however the problem was detected to be at network level and the network trace was not found when the source application attempted to communicate through hostname. When it tried through IP, the traffic was reachable but SAP rejected as in the later releases of SAP, SAP doesn't allow IP address and requires fully qualified names.

Regards

Rajeev