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No. 1396 Re: CSE-H21 over MPLS 2016-03-10

Dear Gerrit,

This is Khanh from Sollae Systems' Technical Support Team.

Thank you for using our products.

The reason of your troubles may be like that: In TCP server mode, each port can have one and only TCP connection. In your case, if a computer was connected to CSE-H21 on these ports, connection request from another computer is refused. And also port scanner program can't scan these ports.
One more point, ezVSP automatically reconnects to CSE-H21 after disconnecting.

Please do following steps:
-delete or stop all virtual port on ezVSP in all computers which are connected to CSE-H21. (refer to page 30 of this document: http://www.eztcp.com/documents/application/an_ezvsp_en.pdf ) -close all TCP connection to these ports on other programs (such as ezTerm or Simple Test on ezManager...).
-reset CSE-H21.
-run portscanner to check whether the ports open or not.
If you see two ports open, the problem is solved.

Before connecting to CSE-H21, please make sure that you do two things as follows:
-delete or stop all virtual ports on ezVSP which are connected to these port.
-close all TCP connections to these ports on other programs (such as ezTerm or Simple Test on ezManager...).

I hope the above can solve the problem.
If the problem doesn't still be solved, please feel free to contact me.

Thank you,

Best regards,


> Gerrit van der Schrier wrote:
> ------------------------------------
> Hello,
>
> I'm having troubles using this device over an MPLS network
>
> The CSE H21 is on a different VLAN behind a firewall.
>
> Firewall ports 1470,1471 and ICMP are open.
>
> the device is pingable, and I got ezVSP connected on some PC and not on another. When I use a portscanner the firewall seems open but the CSE H21 doesn't answer.
>
> It seems the CSE-H21 is having trouble finding its way on an MPLS network.
>
> I'm going to test with a laptop on the same VLAN as the CSE H21.
>
>
>
>

Writer Sollae Systems Company