I see you're already using "dhcp4-overrides.use-routes: false" for
ens192, which SHOULD avoid systemd-networkd from adding any routes
provided by DHCP. This also seems to be correctly reflected in the
.network file:
"""
[Match]
Name=ens192
[Network]
DHCP=ipv4
LinkLocalAddressing=ipv6
[DHCP]
RouteMetric=100
UseMTU=true
UseRoutes=false
"""
It's in a legacy "[DHCP]" section, though. Can you please try creating an
override config in to translate it to a modern "[DHCPv4]" section to see if
that makes any difference?
/etc/systemd/network/10-netplan-ens192.network.d/override.conf:
"""
[DHCPv4]
RouteMetric=100
UseMTU=true
UseRoutes=false
"""
I'm also adding a "systemd" bug task for further investigation.
** Also affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- Netplan adds routes for DHCP-Server for multiple interfaces
+ Netplan/systemd-networkd adds routes for DHCP-Server for multiple interfaces
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https://bugs.launchpad.net/bugs/2119120
Title:
Netplan/systemd-networkd adds routes for DHCP-Server for multiple
interfaces
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