Here you go:
> ls -l /run/systemd/network/
total 8
-rw-r----- 1 root systemd-network 185 Aug 5 06:30
/run/systemd/network/10-netplan-ens160.network
-rw-r----- 1 root systemd-network 118 Aug 5 06:30
/run/systemd/network/10-netplan-ens192.network
> cat /run/systemd/network/*.network
[Match]
Name=ens160
[Network]
DHCP=yes
LinkLocalAddressing=ipv6
DNS=10.251.0.18
DNS=10.251.0.19
DNS=10.251.0.20
Domains=mydomain
[DHCP]
RouteMetric=100
UseMTU=true
UseDNS=false
[Match]
Name=ens192
[Network]
DHCP=ipv4
LinkLocalAddressing=ipv6
[DHCP]
RouteMetric=100
UseMTU=true
UseRoutes=false
> networkctl status
networkctl status \*
● 1: lo
Link File: n/a
Network File: n/a
Type: loopback
State: carrier (unmanaged)
Online state: unknown
HW Address: 00:00:00:00:00:00
MTU: 65536
QDisc: noqueue
IPv6 Address Generation Mode: eui64
Queue Length (Tx/Rx): 1/1
Address: 127.0.0.1
::1
Activation Policy: up
Required For Online: yes
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: lo: Link UP
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: lo: Gained carrier
● 2: ens160
Link File: /usr/lib/systemd/network/99-default.link
Network File: /run/systemd/network/10-netplan-ens160.network
Type: ether
State: routable (configured)
Online state: online
Alternative Names: enp3s0
Path: pci-0000:03:00.0
Driver: vmxnet3
Vendor: VMware
Model: VMXNET3 Ethernet Controller
HW Address: 00:50:56:b9:07:aa (VMware, Inc.)
MTU: 1500 (min: 60, max: 9190)
QDisc: mq
IPv6 Address Generation Mode: eui64
Queue Length (Tx/Rx): 2/2
Auto negotiation: no
Speed: 10Gbps
Duplex: full
Port: tp
Address: 10.4.0.26 (DHCP4 via 10.251.0.18)
fe80::250:56ff:feb9:7aa
Gateway: 10.4.0.1
DNS: 10.251.0.18
10.251.0.19
10.251.0.20
Search Domains: mydomain
NTP: 10.251.0.18
Activation Policy: up
Required For Online: yes
DHCP4 Client ID: IAID:0x9f6e8524/DUID
DHCP6 Client DUID: DUID-EN/Vendor:0000ab119ffe89892ddbc7e80000
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: ens160: Link UP
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: ens160: Gained carrier
Jul 21 11:44:42 test-netradius01a systemd-networkd[718]: ens160: DHCPv4 address
10.4.0.26/16 via 10.4.0.1
Jul 21 11:44:43 test-netradius01a systemd-networkd[718]: ens160: Gained IPv6LL
● 3: ens192
Link File: /usr/lib/systemd/network/99-default.link
Network File: /run/systemd/network/10-netplan-ens192.network
Type: ether
State: routable (configured)
Online state: online
Alternative Names: enp11s0
Path: pci-0000:0b:00.0
Driver: vmxnet3
Vendor: VMware
Model: VMXNET3 Ethernet Controller
HW Address: 00:50:56:b9:fe:7e (VMware, Inc.)
MTU: 1500 (min: 60, max: 9190)
QDisc: mq
IPv6 Address Generation Mode: eui64
Queue Length (Tx/Rx): 2/2
Auto negotiation: no
Speed: 10Gbps
Duplex: full
Port: tp
Address: 10.255.0.61 (DHCP4 via 10.251.0.18)
10.255.0.85
fe80::250:56ff:feb9:fe7e
DNS: 10.251.0.18
10.251.0.19
10.251.0.20
Search Domains: mydomain
NTP: 10.251.0.18
Activation Policy: up
Required For Online: yes
DHCP4 Client ID: IAID:0x2d1aa133/DUID
DHCP6 Client DUID: DUID-EN/Vendor:0000ab119ffe89892ddbc7e80000
Aug 09 09:26:20 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 09:26:21 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Aug 09 09:52:35 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 09:52:35 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Aug 09 10:18:49 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 10:18:49 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Aug 09 10:45:05 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 10:45:05 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Aug 09 11:11:20 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 11:11:20 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Current routes (10.251.0.19 and 10.251.0.20 are both unreachable, 10.251.0.18
is reachable):
> ip route
default via 10.4.0.1 dev ens160 proto dhcp src 10.4.0.26 metric 100
10.4.0.0/16 dev ens160 proto kernel scope link src 10.4.0.26 metric 100
10.4.0.1 dev ens160 proto dhcp scope link src 10.4.0.26 metric 100
10.251.0.18 via 10.4.0.1 dev ens160 proto dhcp src 10.4.0.26 metric 100
10.251.0.18 dev ens192 proto dhcp scope link src 10.255.0.61 metric 100
10.251.0.19 dev ens192 proto dhcp scope link src 10.255.0.61 metric 100
10.251.0.20 dev ens192 proto dhcp scope link src 10.255.0.61 metric 100
10.255.0.0/16 dev ens192 proto kernel scope link src 10.255.0.61 metric 100
> journalctl -u systemd-networkd --no-pager
-- Boot 4dd6d09efe3c4e7c96805714f9144966 --
Jul 21 11:44:41 test-netradius01a systemd[1]: Starting Network Configuration...
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: lo: Link UP
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: lo: Gained carrier
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: Enumeration completed
Jul 21 11:44:41 test-netradius01a systemd[1]: Started Network Configuration.
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: ens192: Link UP
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: ens192: Gained carrier
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: ens160: Link UP
Jul 21 11:44:41 test-netradius01a systemd-networkd[718]: ens160: Gained carrier
Jul 21 11:44:42 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Jul 21 11:44:42 test-netradius01a systemd-networkd[718]: ens160: DHCPv4 address
10.4.0.26/16 via 10.4.0.1
Jul 21 11:44:43 test-netradius01a systemd-networkd[718]: ens160: Gained IPv6LL
Jul 21 11:44:43 test-netradius01a systemd-networkd[718]: ens192: Gained IPv6LL
Jul 21 12:10:56 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Jul 21 12:10:56 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Jul 21 12:37:11 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Jul 21 12:37:11 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Jul 21 13:03:25 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
[...] A LOT OF REPEATING MESSAGES CUT OUT [...]
Aug 09 09:26:20 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 09:26:21 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Aug 09 09:52:35 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 09:52:35 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Aug 09 10:18:49 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 10:18:49 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Aug 09 10:45:05 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 10:45:05 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Aug 09 11:11:20 test-netradius01a systemd-networkd[718]: ens192: DHCP lease lost
Aug 09 11:11:20 test-netradius01a systemd-networkd[718]: ens192: DHCPv4 address
10.255.0.61/16 via 10.255.0.1
Hope this helps!
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https://bugs.launchpad.net/bugs/2119120
Title:
Netplan adds routes for DHCP-Server for multiple interfaces
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