The DMZ (for demilitarized zone) function of the Internet-Box makes it possible to redirect all Internet connections from outside the home network to a specific device. It is mainly used when you want to operate an additional firewall on your home network and all computers are connected to this firewall. This function should only be used by network experts. Find out here how to activate this service and what to pay attention to
The Internet-Box makes it possible to perform personalized expert settings on network and IP addresses. To make this setting, enter “http: // internetbox” or “192.168.1.1” in your Internet browser, connect by entering the “admin” password for your Internet-Box, then activate Expert mode. In Network -> Settings -> DMZ, you can configure the function on the home network using "Select device". The DMZ function requires a good understanding of the network settings and requires a precise configuration on the terminals concerned
Warning: this feature has the disadvantage of exposing the device you have selected to all access attempts, whether friendly or not. Swisscom accepts no liability for abuse by a third party
Was too late in the night to check. Need an access as quickly as possible so I used the IP,. Not time to do a "reverse" ping or investigate which DNS server failed.
The solution you offer is ok and more under my own control. The other is to make an account on another DDNS provider. But the simpliest and inexpensive way to have an access from "the world" is the DDNS from Swisscom.
I have the same problem. In the past days the name mapping for my home internet box disappeared from the DNS (in general - not resolvable also with query to international name servers).
The only way to reach the router was to get the assigned IP from the configuration page hosted at the Swisscom web sites.
This morning the problem is the same: no mapping. The router reports that the DynDNS service is working properly, but no way to resolve the assigned name. Do you know if there is currently any issue with this service?
Swisscom did NOT publish/resolve *.internet-box.ch names Tue.20.Oct.2020 around noon. The MyService hotline (Fr.40/15 min) did not know about any service down at their end, and suggested that I do "reset and restore my internet Box" (which I didn't due to lack of time).. Magically, the DNS name was resolveable in the internet again later in the afternoon.
Today Wed.21.Oct. the same again. - On my internet box I tried to delete the Dyn DNS entry to set it again .. but then got the error message "Der Dienst kann nicht mit dem dynamischen DNS Server verbinden" <-- to me, a clear indication that Swisscom's Dyn DNS Service is (temporarily) DOWN ! This is causing a lot of troubles to a lot of Swisscom customers, not just private, also business services hosted behind a SC router 😞
Phone contact with thé support yesterday, Eskalation to 2. Level. Today I receive a voice message on my Combox : Not the right way for this problem. Please call My Services 0800 822 830... Call is not free of charge...