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Description of problem:
dhcpd service will not start on boot when bridge interface is configured

Version-Release number of selected component (if applicable):
Redhat enterprise 7

How reproducible:
happens on reboot of the system

Steps to Reproduce:
1. configure bridge device
2. install and configure dhcpd scope
3. reboot

Actual results:
dhcpd fails to start on reboot.

Expected results:
dhcpd should start properly

Additional info:
if i add this "After=network.service" this seems to be related to NetworkManager based on the fix listed.

Example:

[Unit]
Description=Network Manager
Wants=network.target
Before=network.target network.service
After=network.service  <---this is what has been added

[Service]
Type=dbus
BusName=org.freedesktop.NetworkManager
ExecStart=/usr/sbin/NetworkManager --no-daemon
# NM doesn't want systemd to kill its children for it
KillMode=process

[Install]
WantedBy=multi-user.target
Alias=dbus-org.freedesktop.NetworkManager.service
Also=NetworkManager-dispatcher.service

Fedora has a similar bug "771009"

Could you try to use:
Wants=network-online.target
After=network-online.target

instead of
After=network.target

that's what we've done on Fedora recently:
http://pkgs.fedoraproject.org/cgit/dhcp.git/commit/?id=0b1fc62ff4128534f86220030a023ae68c77ee2d

Hi Jiri

Can confirm the above works as expected. dhcpd starts on reboot properly with bridge configured. after i make the above changes you posted.

I was not able to reproduce this bug, thus based on patches present both in srpm and specfile I'm setting a SanityOnly flag.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0450.html