First of all: I'm new to this network-stuff, so don't be rude ;)
My english is also not the best one, so sorry for that.
I have two RUT240 routers and I'm trying to connect them with a VPN connection.
The biggest problem is: I can't ping one RUT from the other RUT. Both routers have dynamic public IP's and work with cellular data.
The strange thing is: If I ping the RUT240 from my 'Home-Internet', it is working, but if I connect to one RUT240 and try to ping the other one, then it's failing.
I have no idea why this is happening.
I was able to make the routers accessible over the Internet with a Dyndns-Service, so I can access the Web-Ui at every time.
Like I said before, my goal is to establish a VPN-connection, but it's not working. Maybe because of this "ping-problem".
Now everything is set to factory settings, only dyndns is configured.
Internet is working like a charm on both RUT's. Buf if I connect over Wifi to one Rut240 and try to ping the other one, i get no results.
The same happens If I try to ping over ssh or CLI.
This picture shows my ping attempt over CLI. NOT WORKING. :(
This one shows the pinging over Windows cmd over my home Internet. Working!
So I think, that VPN can't be established as long as the "ping-problem" exists. Am I right? Can you please help me.
Thanks in advance :)