No, the “dhcp4: true” and “routes” configuration options do not conflict with each other.
Setting “dhcp4: true” allows the network interface (in this case, eth0) to obtain its IP address, subnet mask, default gateway, and DNS servers automatically from a DHCP server.
On the other hand, adding a route using the “routes” option allows you to define additional routes for specific destinations via a specific gateway.
So in the given example:
network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: true
routes:
- to: 0.0.0.0/0
via: x.x.x.x
The network interface eth0 will obtain its IP configuration via DHCP, and an additional default route (0.0.0.0/0) will be added to specify that any traffic destined for unknown networks should be routed through the specified gateway (x.x.x.x).
This way, both DHCP-assigned configuration and custom routing can coexist without conflicts.
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