Hello!
I have 3x RUT240 connecting to a RUTX09 in a site to site topology, all connections are cellular with DDNS working, all hostnames are ping-able.
I'm having issues with server to client communication, even after configuring TLS Clients correctly. I noticed on the RUTX09 that the TLS Client Common Name(CN) only accepts email type names in the Common Name field, as opposed to just a generic name like in the RUT240... is this normal? I can get the tunnel up, but I seem to only be able to ping from the client devices to the server. If I try from the server to the clients I get no reply.
I tried re-doing the certificates in easy-rsa specifying a client name like client1@ddns.net and uploaded them - no joy. I have excellent results with 52x RUT240's connecting to a big OpenVPN server, had no issues. But I am struggling to get the 3x RUT240's to talk properly with the RUTX09. So, before wasting another day I thought I would ask if there are any specifics with the Common Name requirement of an email address format?? Please see my topology attached. Many thanks!!Overview