hello Alexander yes i understand and speak germany. "... isch'bin ein bÖerliner..." (mr. kenndy). the model is FRITZ!Box Fon WLAN, number: ???. i think this modelname is a complete and a unique identification. i was interessed in that wrtg router 2 years ago, especially it's running linux, and, i read the "stuff" around. in a view of costs i decided to buy a old prism54 wlan card able to act as access point. by the time and switching to voip i get the fritzbox. some days ago there was a new firmware update and that file wake my attention, what's in. only to see linux in or not and what sort of.that's all. ever good to point potential customers to linux (-devices) they already have and reliable working on, but not knowning what's in, in that way preparing them 4 more. away from the $-company ! ... thx again, thx 4 tips and links. i will try the links tomorrow, i'm sure now it's easier to get more from the router ('s files). ronald