[Bug 333150] [NEW] sets default route, although server doesn't push that route!

[Ralf Hildebrandt]

Public bug reported:

Until recently, openvpn via network-manager was working fine (in
jaunty). Now, all ove a sudden, network-manager-openvpn changes the
default route to point into the tunnel, although the server doesn't push
that route:


With a bare-bone openvpn call:

Mon Feb 23 07:02:32 2009 PUSH: Received control message: 'PUSH_REPLY
,dhcp-option DNS 141.42.1.11,dhcp-option DNS 141.42.2.22,dhcp-option DNS
141.42.3.33,dhcp-option DOMAIN charite.de,dhcp-option NTP 141.42.1.11
,dhcp-option NTP 141.42.2.22,dhcp-option NTP 141.42.3.33,route
172.28.0.1,topology net30,ping 10,ping-restart 120,route 10.0.0.0
255.0.0.0,route 172.16.0.0 255.240.0.0,route 172.16.0.0
255.248.0.0,route 172.24.0.0 255.252.0.0,route 172.29.0.0
255.255.0.0,route 172.30.0.0 255.254.0.0,route 192.168.0.0
255.255.0.0,route 141.42.0.0 255.255.0.0,route 160.45.172.0
255.255.252.0,route 160.45.176.0 255.255.240.0,route 160.45.192.0
255.255.240.0,route 193.175.64.0 255.255.248.0,route 193.175.72.0
255.255.255.0,route 193.175.74.0 255.255.254.0,ifconfig 172.28.0.5
172.28.0.6'

...

Mon Feb 23 07:02:32 2009 ./client.sh up tun0 1500 1542 172.28.0.5 172.28.0.6 init
/etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /etc/resolvconf/run/resolv.conf
Mon Feb 23 07:02:43 2009 /sbin/route add -net 172.28.0.1 netmask 255.255.255.255 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 10.0.0.0 netmask 255.0.0.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 172.16.0.0 netmask 255.240.0.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 172.16.0.0 netmask 255.248.0.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 172.24.0.0 netmask 255.252.0.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 172.29.0.0 netmask 255.255.0.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 172.30.0.0 netmask 255.254.0.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 WARNING: potential route subnet conflict between local LAN [192.168.1.0/255.255.255.0] and remote VPN [192.168.0.0/255.255.0.0]
Mon Feb 23 07:02:43 2009 /sbin/route add -net 192.168.0.0 netmask 255.255.0.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 141.42.0.0 netmask 255.255.0.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 160.45.172.0 netmask 255.255.252.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 160.45.176.0 netmask 255.255.240.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 160.45.192.0 netmask 255.255.240.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 193.175.64.0 netmask 255.255.248.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 193.175.72.0 netmask 255.255.255.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 /sbin/route add -net 193.175.74.0 netmask 255.255.254.0 gw 172.28.0.6
Mon Feb 23 07:02:43 2009 Initialization Sequence Completed

network-manager-openvpn 0.7.1~20090213+bzr14-0ubuntu1 is broken
network-manager-openvpn 0.7-0ubuntu1 seemed to work

** Affects: network-manager-openvpn (Ubuntu)
     Importance: Undecided
         Status: New

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sets default route, although server doesn't push that route!
https://bugs.launchpad.net/bugs/333150
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