Public bug reported:
Binary package hint: network-manager-openvpn
When I setup my OpenVPN connection with user-pass authentication, the
server pushes the correct DNS servers. The connection works, except that
it doesn't setup the routing table right. The routing table is as
follows after connection setup. The default gateway
Destination Gateway Genmask Flags Metric Ref Use Iface
VPN_SERVER 192.168.1.1 255.255.255.255 UGH 0 0 0 eth1
192.168.1.0 * 255.255.255.240 U 0 0 0 eth1
default * 0.0.0.0 U 0 0 0 tap0
My network connection breaks completely since it doesn't have a default gateway
anymore. I have to do a
$ sudo route add default gw VPN_SERVER dev tap0
before the network connection works again, routing everything trough the VPN
tunnel. This results in the following routing table:
Destination Gateway Genmask Flags Metric Ref Use Iface
VPN_SERVER 192.168.1.1 255.255.255.255 UGH 0 0 0 eth1
192.168.1.0 * 255.255.255.240 U 0 0 0
eth1
default VPN_SERVER 0.0.0.0 UG 0 0 0 tap0
default * 0.0.0.0 U 0 0
0 tap0
This seems to be a bug in n-m-openvpn, it fails to setup the routing
table properly.
** Affects: network-manager-openvpn (Ubuntu)
Importance: Undecided
Status: New
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Default gateway missing after connection setup
https://bugs.launchpad.net/bugs/175085
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