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Remote access via port-forwarding and dynamic dns.

Created by: fdag1 at: 10/13/2020 9:24 AM (4 Replies)

10/13/2020 9:24 AM	Rate (0)
fdag1 Advanced Member Joined: 8/6/2008 Last visit: 2/4/2023 Posts: 36 Rating: (1)	Hi Online-Tech The solution with port forwarding is working to access the S7-1200 PLC. However when i try to login to the PLS, providing userid/passw the access fails. The plc is trying to setup a secure connection! How can we solve this so that remote access is working via port-forwarding and dynamic dns. Best regards, Fabrizio ------------------------------------------------------------------------------------------ Split from Plc webserver remote access without VPN.
	Last edited by: Jen_Moderator at: 10/13/2020 13:54:41 New subject after splitting
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10/13/2020 2:54 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 3/24/2023 Posts: 13205 Rating: (2147)	What do you mean by "access fails"? Does the browser pop up a message about secure connection certificate problems? Or does the PLC reject the connection? fdag1 Hi Online-Tech The solution with port forwarding is working to access the S7-1200 PLC. However when i try to login to the PLS, providing userid/passw the access fails. The plc is trying to setup a secure connection! How can we solve this so that remote access is working via port-forwarding and dynamic dns. Best regards, Fabrizio ------------------------------------------------------------------------------------------ Split from Plc webserver remote access without VPN.
	science guy
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Joined: 3/28/2015

Last visit: 3/25/2023

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Hello,

Can you explain your issue in detail?

1-Enable the web server on the CPU

2-Port forwarding in the router setting"Remote side":

External Port

102

Internal Port

102

To IP Address

"CPU IP Address"

3-Office PC"Local side":

http://domain"Remote side":102

not https://domain "Remote side":102

Eng.Mohamed Ibrahim
WhatsApp : +201122880543

10/14/2020 9:56 PM	Rate (0)
fdag1 Advanced Member Joined: 8/6/2008 Last visit: 2/4/2023 Posts: 36 Rating: (1)	Hi, Here is my setup S71200 CPU 1214C connected to 4G modem TPlink Webserver activated, use HTTPS not ticked. In TPlink modem DYNDNS is activated to url 'siewebserver.ddns.net' In TPLink modem i have setup a virtual server named 'PLC CPU C1214' from external port 8080 to internal IP 192.168.0.80 (IP Adress of PLC) on port 80, all traffic TCP and UDP There is also a PC connected to a port of the 4G router. IP Adress is in same range has PLC. In chrome webbrower i type URL http://192.168.0.80 PLC Webserver screen is displayed. I can login to the plc using Login/passw fdag/admin Remark that on the first attemp i get security warnings, but after acknowledging them the plc login is successfull If try to login on a different pc using URL http://siewebserver.ddns.net:8080 I get the PLC webserver screen, however logging in using fdag/admin i have the impression that a secure connection is attempted to be setup. Afther a while the connection is release by siewebserver.ddns.net siewebserver.ddns.net is still active, you can try it yourself. PLC is not life, but please do not kill it. Here is a disply of the Virtual sever setup in TPLINK 4G modem Thanks for your time to take a look at this problem Best regards Fabrizio

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1/28/2023 7:23 PM	Rate (0)
danielo764 Member Joined: 8/21/2020 Last visit: 1/28/2023 Posts: 1 Rating: (0)	You solved this problem?

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