Mahesh. This example show configuring DTLS for AnyConnect and it does use port 443. But it is possible to specify a different port. So basically the ports you need to open will reflect choices that you make in configuring AnyConnect.

What does the cli command 'netstat' show as listening? If no process is listening on port 443 on the computer, then modem, or router is the listening device. Just in case you wan to try opening the port you will need to login on your router and add a port forwarding rule that forward port 443 to the internal IP Address of the thermo. It might be the case that you have thermo setup with DHCP which changes periodically and breaks your connection to the thermo. Static IP addressing is best in this senario. Dec 01, 2016 · Re: Stop VMWare from using port 443. lawleagle Dec 1, 2016 4:30 PM ( in response to bdpEMC-spam ) There was a vmware process that I killed in order to stop vmware from using that port, but I thought it was temporary. The short answer is this: When you connect on port 443, the entire handshake happens on port 443. This can be done in a secure fashion as a result of the Diffie-Helman process, which allows public keys to be exchanged in the open without fear that the communication secret that results from the communication might be calculated or guessed by an attacker. Dec 31, 2012 · Port 443 is often less policed than port 80 based on the assumption that it is carrying encrypted traffic. However, enterprise firewalls sometimes verify the use of TLS/SSL on port 443. A consequence of this trend is that Internet statistics show [Labovitz] that a majority of the Internet traffic is over port 80 and 443.

Apr 07, 2014 · Connecting to SSH server over port 443. To connect to a machine over port 443 when direct connection to port 443 is allowed use: ssh -p 443 @ Connecting to SSH server port 443 through HTTP Proxy server. If direct connection to port 443 is not allowed and use of proxy server is necessary to access Internet then use

Name: https Purpose: http protocol over TLS/SSL Description: > This port is used for secure web browser communication. Data transferred across such connections are highly resistant to eavesdropping and interception. If you cannot connect, please work with your network security team to grant you access to port 443. By default, the HTTP port that's used for client-to-site system communication is port 80, and the default HTTPS port is 443. Ports for client-to-site system communication over HTTP or HTTPS can be changed during setup or in the site properties for your Configuration Manager site.

Since port 443 is the default port for HTTPS content, censors are deterred from blocking the port altogether since it would mean blocking all of HTTPS traffic, which is a very high cost for just blocking VPNs disguising their traffic as "HTTPS".

Nov 15, 2015 · However there is nothing about port 443 in that document. During October of 1994, RFC 1700 was published and this appeared for the first time: It seems it was solicited by Kipp E.B. Hickman, who at the time worked at Mosaic, the first GUI browser company that later went on to become Netscape. It is not clear why port 443 was chosen. Name: https Purpose: http protocol over TLS/SSL Description: > This port is used for secure web browser communication. Data transferred across such connections are highly resistant to eavesdropping and interception. If you cannot connect, please work with your network security team to grant you access to port 443. By default, the HTTP port that's used for client-to-site system communication is port 80, and the default HTTPS port is 443. Ports for client-to-site system communication over HTTP or HTTPS can be changed during setup or in the site properties for your Configuration Manager site.