is there a device which converts the incoming lan signals into wifi signals?

The apartment only has a fixed network ip with a predetermined gateway and DNS. One needs to give this static ip, netmask and gateway in the network configuration of the computer and it works.

But I would like to use smart phones to access the network. Hence the static settings should be done in the device ( maybe it is is called an lan to wifi adaptor ) itself . Ofcourse, I do not want an expensive ADSL or DSL because I do not need the modem functionality.

Also, it would be great to know how this network device works i.e how does it give the IP addresses to the connected devices - may be using NAT?

Help with links what I should look for, would be appreciated.

Edit 05 June, 2017:

I have a FritzBox 7240, which according to this manual ( German ) https://avm.de/service/fritzbox/fritzbox-7240/wissensdatenbank/publication/show/106_FRITZ-Box-fuer-Betrieb-mit-anderem-Router-einrichten/, should be able to fulfill my needs. But the problem there is, that the static IP provided by the external router is class B ( 134.x.x.x ). If I enter this static IP into the FritzBox's Routers configuration and activate the DHCP server of the Fritzbox to provide IPs ( Class C - 192.168.178.x ) that would distribute the IP's to the connected devices, the Fritz box complains a conflict between the Class B incoming IP and the class C Fritzbox's DHCP IP.

So, I have left with no other choice, but to buy some other device like an Access Point.

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  • @goldilocks can you suggest some links to buy. I need to put static ip , dns and gateway in the access point. I tried with Fritzbox 7240, but does not work. Maybe Fritzbox 7240 cannot be used as an access point. Jun 4, 2017 at 18:05
  • An Access Point will basically translate wifi to lan signals and vice versa. If you want to use more than one device behind this one static IP, you want a proper router, which will route from your subnet to the "more public network". If you do not need to run more than one device at any time, a "simple" access point will work. So now for the obligatory questions: How much money are you willing to spend? What else beyond the above explained functionality do you want / need?
    – SEJPM
    Jun 4, 2017 at 18:20
  • I'm going to contradict @SEJPM on this point (as does wikipedia: "One IEEE 802.11 AP can typically communicate with 30 client systems located within a radius of 103 metres..."). AP's work by using NAT with a private subnet. This does mean the client devices are effectively hidden from the LAN, but that only matters if they are running IP servers, or you want zeroconf/mDNS stuff to work across the AP -- but a complete router is not a transparent solution to that either (unless you move everything but your ISP router onto it).
    – goldilocks
    Jun 4, 2017 at 19:32
  • @SEJPM Just normal internet connectivity. I am not hosting any server and neither I want any specific ports like ssh, http/s etc to be running. Budget - cheaper the better. Jun 4, 2017 at 20:53

1 Answer 1


Found this cheap device which acts as a bridge, AP, router - all in one and is configurable with static ip, dns and gateway -


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