[lime-users] How does the network content is addressed in a mesh network?

Hi people! I'm really excited to say that I'm using LibreMesh after a long time following the project. The objective: to deploy a libremesh network with mesh nodes on a school and a house (maybe some in between because there is 300m distance). The school and house must be able to host content related to their activities. Current scenario: at home I have a cellphone and a pc connected to a TP-Link router running LibreMesh. I have a running http server on the pc for testing purposes. The problem: from the phone I can't retrieve content using http://10.13.0.4:1234 (ip of the pc and port of the node server). Now some questions: 1) how can I diagnose if there are configuration problems? 2) should the devices connected to mesh nodes have a name in the DNS provided by the router? (I'm thinking of http://school-node/some/content) If there is some documentation where you can point me to, I'll be very thankful. Sorry if something is missing in my question, english is not my native language. Thanks in advance, Pedro.