Connection Reset just on one network

asked 2019-01-16 19:11:48 +0000

krishna gravatar image

updated 2019-01-16 19:16:08 +0000


I have a an application running inside a DMZ, I have a client app that runs on a normal network server, that communicates with this server on the DMZ through HTTP.

When I run the request from the client app, I receive a RST. Wneh I run the request from any other place (my desktop, local server on the DMZ) everything runs fine and I receive a HTTP 200 with the response JSON.

I have captures from tests using curl both with the RST and HTTP 200 and the only thing I can see are differences in window sizes en ECN capabilities of the network, where it fails ECN is available, where it work it is not. System is not allowing me to upload files or post screeshots.

Please see attached both capture files, could some one have an idea of what might be the problem?

Searching other post this seems to be realted to packet size and and data bursts due to the window sizes. But I am not sure about that.


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