Description of problem:

Static IPV4 and IPV6 addresses are not set to interface if DHCPv4 failed for this interface

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

initscripts-9.03.31-2.el6

How reproducible:

100%

Steps to Reproduce:
1. Configure the eth0 as DHCP + static IPV4 + static IPV6:

---
CT-106-bash-4.1# cat /etc/sysconfig/network-scripts/ifcfg-eth0 
DEVICE="eth0"
ONBOOT="yes"
BOOTPROTO="static"
DHCPV6C="no"
IPV6INIT="yes"
IPV6ADDR_SECONDARIES="2001:aaad::a1d:8290/64"
IPADDR="1.1.1.2"
NETMASK=""
---

2. service network restart (or ifup eth0)
3. see that both IPV4 and IPV6 addresses are not assigned if dhcpv4 client failed
  
Actual results:

---
CT-106-bash-4.1# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:1C:42:FE:07:84  
          inet6 addr: fe80::21c:42ff:fefe:784/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3551808 errors:0 dropped:0 overruns:0 frame:0
          TX packets:144 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:302572596 (288.5 MiB)  TX bytes:20662 (20.1 KiB)

---


Expected results:

Both static addresses are assigned to eth0

Additional info:

The problem is in /etc/sysconfig/network-scripts/ifup-eth :


[...]
     if /sbin/dhclient ${DHCLIENTARGS} ${DEVICE} ; then
        echo $" done."
    else
        echo $" failed."
        exit 1
    fi

as you can see, all work stopped if dhclient failed. Please, fix.