ESP8266 Community Forum

can't give you a direct solution, but asking a search engine about "esp8266 mesh" gives some interesting hits worth reading.

e.g.:
https://github.com/espressif/ESP8266_MESH_DEMO
https://github.com/olab-io/ESP8266-Rese ... esp8266.md
https://esp8266mesh.wordpress.com/push- ... n-service/
https://gitlab.com/BlackEdder/painlessMesh

Nice find that, schufti, it wouldn't have occurred to me to search on "mesh". Looks pretty close to what the OP was asking for.

schufti wrote:can't give you a direct solution, but asking a search engine about "esp8266 mesh" gives some interesting hits worth reading.

e.g.:
https://github.com/espressif/ESP8266_MESH_DEMO
https://github.com/olab-io/ESP8266-Rese ... esp8266.md
https://esp8266mesh.wordpress.com/push- ... n-service/
https://gitlab.com/BlackEdder/painlessMesh