openvpn --config client.ovpn fail: RTNETLINK answers: File exists

I'm on Ubuntu 16.04 Mate

sudo openvpn --config client.ovpn

results

Initialization Sequence Completed

with errors

Tue May 30 23:54:41 2017 /sbin/ip link set dev tun0 up mtu 1500
Tue May 30 23:54:41 2017 /sbin/ip addr add dev tun0 10.10.10.3/24 broadcast 10.10.10.255
Tue May 30 23:54:45 2017 /sbin/ip route add 188.93.88.146/32 via 192.168.0.1
Tue May 30 23:54:45 2017 /sbin/ip route add 10.1.1.0/24 via 10.10.10.1
Tue May 30 23:54:45 2017 /sbin/ip route add 10.1.1.1/32 via 10.10.10.1
Tue May 30 23:54:45 2017 /sbin/ip route add 10.1.1.2/32 via 10.10.10.1
Tue May 30 23:54:45 2017 /sbin/ip route add 10.1.1.1/32 via 10.10.10.1
RTNETLINK answers: File exists
Tue May 30 23:54:45 2017 ERROR: Linux route add command failed: external program exited with error status: 2
Tue May 30 23:54:45 2017 /sbin/ip route add 188.93.88.146/32 via 192.168.0.1
RTNETLINK answers: File exists
Tue May 30 23:54:45 2017 ERROR: Linux route add command failed: external program exited with error status: 2
Tue May 30 23:54:45 2017 Initialization Sequence Completed

/etc/network/interfaces looks like

auto lo
iface lo inet loopback

$ ip link show results

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp8s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
    link/ether 34:64:a9:bf:10:da brd ff:ff:ff:ff:ff:ff
3: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
    link/ether 10:08:b1:1f:3c:77 brd ff:ff:ff:ff:ff:ff

$ route results

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.0.1     0.0.0.0         UG    600    0        0 wlo1
link-local      *               255.255.0.0     U     1000   0        0 wlo1
192.168.0.0     *               255.255.255.0   U     600    0        0 wlo1

I have tried

$ sudo ip addr flush dev wlo1

$ sudo ip addr flush dev enp8s0

and restarting, but errors still occur when connecting with openvpn


Solution 1:

I have removed route remote_host 255.255.255.255 net_gateway from client.ovpn file

Solution 2:

/sbin/ip route add 10.1.1.1/32 via 10.10.10.1 and /sbin/ip route add 188.93.88.146/32 via 192.168.0.1 are both being executed on previous lines, resulting in the File Exists errors. Removing those duplicates will solve your problem (I believe).