[OpenWrt-Devel] Use DHCP by default on single port devices

[Levente]

What if I use a router that has a single port, and on the USB, there
is a 4G modem? This is still a router, and DHCP makes no sense.

I don't think it is a good idea to require a user to have a DHCP server.

Regards,
Levente
On Tue, Aug 28, 2018 at 6:11 AM Luiz Angelo Daros de Luca
<luizluca at gmail.com> wrote:
>
> Hi Daniel,
>
> I do often that kind of switch: dhcpd off, static -> dhcpc. Even
> though I'm not sure about this change.
>
> I read superficially the PR. I looks like a simple change from static
> to dhcp on some devices. Correct me if I'm wrong.
>
> I guess it will break some use cases. Imagine that this change is
> applied to an AP device (one ethernet, one wireless).
> wireless is disable by default, ethernet now requires a DHCP server.
> The user will connect that AP to a single port router (that has DHCP).
> How could the use configure it? If the user plugs into the router, it
> gets an IP address but wireless is still off. If the user plugs into a
> computer
> ethernet port, it expects a DHCP server. The user will need to install
> a DHCP server on the PC. We are coming from "plug the device into
> a computer port, get an IP address from device DHCP, configure the
> device" to "configure PC to use static address, configure a DHCP
> server, plug
> the device and configure it". Remember that some home users have
> limited network knowledge and no CLI experience.
>
> Will it affect failsafe too?
>
> Most enterprise devices do use DHCP client as default. However, they
> still have a static IP address as a fallback.
> If that alternative is not available, I'm fully against this change.
> Static IP address might give some extra job but it is always there.
> Even with a fallback IP address mechanism, DHCP server does help
> configure the device the first time without touching PC settings.
>
> "DHCP server + static IP address" still works with enterprise but
> "DHCP Client", even with an alternative static IP address, might not
> work for some home users.
>
> For enterprise users, maybe it's time to customize their own firmware.
> Some simple uci-defaults script can do that job nicely.
>
> Regards,
>
> ---
>      Luiz Angelo Daros de Luca
>             luizluca at gmail.com

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