[Bug 1573112] [NEW] inet manual sets device up with link local address without 'auto'

[Scott Moser]

Public bug reported:

When a device is not marked as 'auto' or allow-hotplug or allow-auto,
but is 'inet manual', the interface is brought up, and it will have a
link-local address.  the ifup scripts are not run, and ifquery --state
does not show it as up (both of which are correct), but the interfaces
should not have been brought up.

% cat /etc/network/interfaces
auto lo
iface lo inet loopback
iface eth0 inet manual

% reboot

%  ifconfig
eth0      Link encap:Ethernet  HWaddr 00:16:3e:e5:c1:56  
          inet6 addr: fe80::216:3eff:fee5:c156/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:648 (648.0 B)  TX bytes:648 (648.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:20 errors:0 dropped:0 overruns:0 frame:0
          TX packets:20 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:1496 (1.4 KB)  TX bytes:1496 (1.4 KB)

% ifquery --state --all   
lo=lo

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ifupdown 0.8.10ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
Uname: Linux 4.4.0-18-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Thu Apr 21 15:45:27 2016
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
SourcePackage: ifupdown
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ifupdown (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug uec-images xenial

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ifupdown in Ubuntu.
https://bugs.launchpad.net/bugs/1573112

Title:
  inet manual sets device up with link local address without 'auto'

Status in ifupdown package in Ubuntu:
  New

Bug description:
  When a device is not marked as 'auto' or allow-hotplug or allow-auto,
  but is 'inet manual', the interface is brought up, and it will have a
  link-local address.  the ifup scripts are not run, and ifquery --state
  does not show it as up (both of which are correct), but the interfaces
  should not have been brought up.

  % cat /etc/network/interfaces
  auto lo
  iface lo inet loopback
  iface eth0 inet manual

  % reboot

  %  ifconfig
  eth0      Link encap:Ethernet  HWaddr 00:16:3e:e5:c1:56  
            inet6 addr: fe80::216:3eff:fee5:c156/64 Scope:Link
            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
            RX packets:8 errors:0 dropped:0 overruns:0 frame:0
            TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:1000 
            RX bytes:648 (648.0 B)  TX bytes:648 (648.0 B)

  lo        Link encap:Local Loopback  
            inet addr:127.0.0.1  Mask:255.0.0.0
            inet6 addr: ::1/128 Scope:Host
            UP LOOPBACK RUNNING  MTU:65536  Metric:1
            RX packets:20 errors:0 dropped:0 overruns:0 frame:0
            TX packets:20 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:1 
            RX bytes:1496 (1.4 KB)  TX bytes:1496 (1.4 KB)

  % ifquery --state --all   
  lo=lo

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ifupdown 0.8.10ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  Date: Thu Apr 21 15:45:27 2016
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
  SourcePackage: ifupdown
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1573112/+subscriptions