How to connect a router as a modem?

Question

WiFi

Tell me how to configure the router as a modem?
Router: Dir 320.
Can there be instructions on how to do this?

Answer 1

No way. It is not intended for this.

Answer 2

I have a feeling that you don't even know the meaning of the term "modem" = "modulator/demodulator". In this sense, no way.
Write in which scheme you want to work.
PS: Often you can put an alternative firmware on the router with the necessary functions. Something like OpenWRT.

Answer 3

2 options:
1. it sucks the Internet as a wifi client and distributes it over the cord
2. it sucks the internet over the cord and gives it over wifi and the cord
All this is described in the instructions
Play around with this
https://www.dlink.ru/tools/

Answer 4

The mode "router as a modem" is called Bridge. It is used in cases where the router is used as a means of communication at the data link layer, and not at the network layer, connecting networks on a different physical basis, but with a compatible frame format.
This mode makes sense only when the router uses not just Ethernet, but some other technology that can be presented as Ethernet, such as DSL or GPON. In this mode, the router does not receive an IP address from the provider, it goes to the device behind the router, which can be another router in the mode of the router itself, or a computer (in this case, only one device can work on the Internet at a time - the provider must allocate only one IP address per port, although it is possible that some providers have a network that is underconfigured and does not have this limitation). The DIR-320 router has a WAN interface in the form of a simple Ethernet, so it makes no sense to configure it in this mode.
For example, MGTS connects via GPON, and gives its routers with a GPON port. But they may have poor Wi-Fi without 5 GHz support, or slow NAT that can not cope with a large number of connections when downloading torrents, or some other glitches, and you already have a good router with an Ethernet port and normal Wi-Fi . You can transfer the MGTS router to Bridge, connect your router to it, it will receive an external IP address, as if MGTS brought you a regular Ethernet cable instead of GPON.
Wi-Fi can also be represented as Ethernet, the corresponding Bridge operating mode is called "access point". As the previous commentator pointed out, you can set up Internet distribution over a wire with Wi-Fi or with Wi-Fi over a wire, and it is not necessary to use the Bridge mode for this.