Can you run a network without a dedicated router if you have a DHCP and DNS server and a modem?
I've been playing around with various DNS servers over the last few days, including Adguard Home, and I noticed that it also offers the option of setting up a DHCP server, which means that as far as I know, my FritzBox wouldn't do anything anymore, since I use an external modem (from Telekom) for my fiber optic connection.
So my question is, theoretically, could I also omit the router from the configuration? (I realize you'd have to change the gateway and so on, of course…
PS. I certainly wouldn't do that either, as the FritzBox Wi-Fi Mesh is indispensable for me.
(1 votes)
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Your router would not have to deploy DNS or DHCP servers in the local network. But he still has something to do -> routes!
It is responsible to route the data between your local network and the provider’s network (or the Internet). Without it, your local devices do not know where to send requests that go to addresses that lie outside your network.
With a modem alone, exactly ONE device currently has access to the Internet, but not several.
Oh, okay, thanks that was very informative.. more than you find on the Internet.
Thank you
Where the DHCP server is running doesn’t matter.
If you run a DHCP server elsewhere, you should, as already mentioned, disable the DHCP server on the FB, as two dhcp servers with the same pool can come to address conflicts (two dhcp server also goes, but then the IP ranges in the same network should be different which IPs are assigned.
no you don’t have to change the gateway. The gateway remains the FB.
Gateway and DNS are part of the dhcp pool and are also assigned to the IP.
Yes, it had to learn it yourself… read helps was just big about it
Thank you for your answer!
You don’t need a DHCP server in the network. You could also assign the IPs used manually.
But what you can’t leave if you don’t have your own subnetwork with usable size is the actual router. Because someone has to do the network address translation. And a firewall is really nice too. To do this, I guess that you don’t want every device to choose by PPP.
But in principle, you can also connect a PC directly to the media converter. Ethernet comes out and the PC can choose to the Internet via a PPPoE connection.
yes, it is true that the firewall is logical, there was also one in it (something other than the FritzBox) but thought for the “theory” it is no matter
Thank you.
The name Router for a Fritzbox is actually not correct. This is a multifunction network device with the following functions
If you’re exposing dns and DHCP, that’s only 2 of the features your FB currently performs. Of course, you can set up a Linux PC and set up all the necessary functions there, then you can also leave the FB away. It’s not necessarily trivial.
There are three possibilities.
Connect the previous router to the glass fiber modem and leave the internal modem unused.
Buy a router with integrated glass fiber modem.
Hang a router behind the glass fiber modem without a modem.
Possibility 1 I have been using fiber
Wanted to know if you actually need a router in the configuration, nevertheless thanks
The router function can of course be divided and distributed. But it becomes clearer or easier. The functions are required.
I don’t think this answers the real question.
I added it again in all cases.
What internal modem? This is fiberglass, because it is not modulated/demodulated. It’s just Ethernet.
One speaks of glass fiber modem or glass fiber router and everyone knows what is meant.
yes, thank you:D
I answered that by now.
Read the question. He asks if he can leave the router. Where should an activated or deactivated modem have relevance?