fresh-home/esphome/common/text_sensor/ethernet_info.config.yaml

esphome:

text_sensor:
  - platform: ethernet_info
    ip_address:
      name: "IP Address"
      icon: mdi:ip
      disabled_by_default: true
    mac_address:
      name: MAC Address
      icon: mdi:network
      disabled_by_default: true