I'm hosting some sites/services like Jenkins on a server I've got at home. I'd like to have them accessible from the Internet as well as intranet through a public domain name. For this I've registered a noip domain name pointing to my (dynamic) public ipv4. The router has port forwards configured to NAT a port onto my server.
All this was working fine, until I've changed network provider and thus my router last weekend.
Now I can't connect to my sites from the intranet using the public domain name which is being resolved to my public ip.
What I've tested:
- Pinging the public domain name from intranet resolves the correct public ip -> no DNS issue
- Sites are accessible from the internet when using the public domain name (or ip) and correct port
- Sites are NOT accessible from the intranet when using the public domain name (or ip) and correct port. In this case the browser shows a network connection timeout error (ERR_CONNECTION_TIMED_OUT)
- Sites are accessible from the intranet when using the internal ip and correct port (as specified in the port forwarding rule for destination)
What network config on the router has to be changed for it to route this correctly from the intranet?
This is a duplication of my post here: https://networkengineering.stackexchange.com/posts/59290