Simon,
The setup I have is running two OpenVPN daemons on the same port (1618)
but on different protocols (TCP/UDP). The post that Chris made in the
AWS forum above had a much simpler, single virtual interface setup.
root@ip-10-0-0-9:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9001 qdisc pfifo_fast state UP
group default qlen 1000
link/ether 06:cc:43:0f:66:e9 brd ff:ff:ff:ff:ff:ff
inet 10.0.0.9/28 brd 10.0.0.15 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::4cc:43ff:fe0f:66e9/64 scope link
valid_lft forever preferred_lft forever
3: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UNKNOWN group default qlen 100
link/none
inet 10.255.248.1/23 brd 10.255.249.255 scope global tun0
valid_lft forever preferred_lft forever
4: tun1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UNKNOWN group default qlen 100
link/none
inet 10.255.250.1/23 brd 10.255.251.255 scope global tun1
valid_lft forever preferred_lft forever
root@ip-10-0-0-9:~# ip route
default via 10.0.0.1 dev eth0
10.0.0.0/28 dev eth0 proto kernel scope link src 10.0.0.9
10.255.248.0/23 dev tun0 proto kernel scope link src 10.255.248.1
10.255.250.0/23 dev tun1 proto kernel scope link src 10.255.250.1
root@ip-10-0-0-9:~# netstat -nlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:1618 0.0.0.0:* LISTEN
2875/openvpn
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
1059/sshd
tcp6 0 0 :::22 :::* LISTEN
1059/sshd
udp 0 0 0.0.0.0:68 0.0.0.0:*
876/dhclient
udp 0 0 0.0.0.0:1618 0.0.0.0:*
2874/openvpn
Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node PID/Program name
Path
unix 2 [ ACC ] STREAM LISTENING 8782 1/init
/run/lvm/lvmpolld.socket
unix 2 [ ACC ] STREAM LISTENING 20818 2974/systemd
/run/user/1000/systemd/private
unix 2 [ ACC ] SEQPACKET LISTENING 8864 1/init
/run/udev/control
unix 2 [ ACC ] STREAM LISTENING 8783 1/init
/run/systemd/journal/stdout
unix 2 [ ACC ] STREAM LISTENING 9033 1/init
/run/lvm/lvmetad.socket
unix 2 [ ACC ] STREAM LISTENING 10909 1/init
/run/acpid.socket
unix 2 [ ACC ] STREAM LISTENING 20850 3012/0
/tmp/ssh-zhPNN6x7d9/agent.3012
unix 2 [ ACC ] STREAM LISTENING 10899 1/init
/run/snapd.socket
unix 2 [ ACC ] STREAM LISTENING 10824 1/init
/var/run/dbus/system_bus_socket
unix 2 [ ACC ] STREAM LISTENING 10891 1/init
/run/uuidd/request
unix 2 [ ACC ] STREAM LISTENING 10893 1/init
/var/lib/lxd/unix.socket
unix 2 [ ACC ] STREAM LISTENING 13922 1074/iscsid
@ISCSIADM_ABSTRACT_NAMESPACE
unix 2 [ ACC ] STREAM LISTENING 17650 1/init
/var/run/pcscd/pcscd.comm
unix 2 [ ACC ] STREAM LISTENING 8778 1/init
/run/systemd/private
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https://bugs.launchpad.net/bugs/1580356
Title:
OpenVPN causes reboot failure on Xenial in AWS
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