What is the gateway IP in a macvlan setup?

[io7m]

The documentation
says:

--gateway=ip

Define a gateway for the subnet. To provide a gateway address, a subnet option is required. Can be specified multiple times. The argument order of the --subnet, --gateway and --ip-range options must match.

However, I don't know what the meaning of gateway is in this context. Is this supposed to be the real gateway address of my physical LAN?

On the physical LAN, I'm on, the gateway address is 10.2.201.1. However, following some possibly-incorrect advice, I ended up with the following network quadlet:

[Network]
Subnet=10.2.51.0/24
Gateway=10.2.51.1
IPRange=10.2.51.0/24

Driver=macvlan
IPv6=true
IPAMDriver=host-local
Options=parent=eno1

That is, I'm trying to define a network where 10.2.51.* is assigned to containers (excluding 10.2.51.1). I understand and accept that containers won't be able to talk to the host and vice versa (without a bridge workaround), but this seems to result in a network where containers just can't talk to anything at all. I've tried running tcpdump on the any interface just to see if any packets are going anywhere, and I see nothing.

[Luap99]

macvlan exposed the interfaces as layer2 and traffic will bypass the host netns so you will not be able to capture it there.

That means that you address would need to be in the same range as your local LAN using and using the same gateway.
Now if you manually provide --subnet you may want to use --ip-range to limit the address range podman will assign to the container so it does not cause conflicts with other hosts on the same subnet.
Otherwise by default macvlan will default to use DHCP so if your network already has a DHCP server you could just rely on that.

[io7m]

Thanks!