** Changed in: isc-dhcp (Ubuntu)
Importance: Undecided => Medium
** Changed in: isc-dhcp (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1633619
Title:
dhclient -1 exits 0 when no lease found
Status in isc-dhcp package in Ubuntu:
Confirmed
Bug description:
I've tried this in containers of xenial, trusty and yakkety.
i've created a lxc network that does not have dhcp4.
See https://github.com/lxc/lxd/issues/2481 for some info on how to do
that.
Then, I launch an instance:
$ lxc launch ubuntu-daily:xenial --profile=sm-test-profile2 x1
% killall dhclient
% dhclient -r eth0
% dhclient -1 -v eth0
Internet Systems Consortium DHCP Client 4.3.3
Copyright 2004-2015 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth0/00:16:3e:b8:e6:70
Sending on LPF/eth0/00:16:3e:b8:e6:70
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 (xid=0xc08cb53c)
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4 (xid=0xc08cb53c)
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9 (xid=0xc08cb53c)
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 19 (xid=0xc08cb53c)
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7 (xid=0xc08cb53c)
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12 (xid=0xc08cb53c)
..
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
% echo $?
0
% ps axw | grep dhcl
356 ? Ss 0:00 dhclient -1 -v eth0
the man page says of the '-1' option:
-1 Try to get a lease once. On failure exit with code 2. In
DHCPv6 this sets the maximum duration of the initial exchange to
timeout (from dhclient.conf with a default of sixty seconds).
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: isc-dhcp-client 4.3.3-5ubuntu15
ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
Uname: Linux 4.8.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Oct 14 16:59:45 2016
DhclientLeases:
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-07-23 (449 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150722.1)
SourcePackage: isc-dhcp
UpgradeStatus: No upgrade log present (probably fresh install)
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