[Pkg-utopia-maintainers] Bug#767002: network-manager breaks ptp tun interfaces

[Peter Palfrader]

Package: network-manager
Version: 0.9.10.0-3
Severity: important

Hi,

I start a couple tun devices outside of network manager using openvpn.

For instance:
} 88: tun-n2-axon: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 100
}     link/none
}     inet 172.22.126.18 peer 172.22.126.21/32 scope global tun-n2-axon
}        valid_lft forever preferred_lft forever

If network manager is runningm the configuration of that device is changed to:
} 88: tun-n2-axon: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 100
}     link/none
}     inet 172.22.126.18 peer 172.22.126.21/32 scope global tun-n2-axon
}        valid_lft forever preferred_lft forever
}     inet 172.22.126.18/32 brd 172.22.126.18 scope global tun-n2-axon
}        valid_lft forever preferred_lft forever

Adding
] [keyfile]
] unmanaged-devices=interface-name:tun-n2-axon
prevents that, but that "solution" is really sub-optimal (I have many such
devices, and they change etc.Timeout, server anguilla.debian.or.at not
responding.

We discussed this briefly on IRC, and it might be caused by the connection
assumption feature.

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