# Regular Meeting (2022.11.14) ## CDCFE Firmware * Tried previous bit file and normal compiled bit file * The same result -> can't ping to it * SiTCP Manual said: * ![](https://i.imgur.com/ttzZR4C.png) * ![](https://i.imgur.com/to0GVTW.png) * Nexys Board Eth-LED * ![](https://i.imgur.com/TTSr0zu.png) * ![](https://i.imgur.com/pSeHjTk.gif) * About MAC address of board * Has been programed to EEPROM * We don't know what address Manufactor programed to EEPROM * Our Switch(Has function for Network Manager) may has funtion can find MAC address * Set NAT(IP/MAC Mapping) for Firmware (asked Link) * Failed, because in the internal(hep6) ###### tags: `Regular Meeting` `DeWei`