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Previously, when an alias interface was brought down using the ifdown command, the LABEL variable was not set due to a typo in the ifdown-eth script. Consequently, instead of removing just addresses belonging to the alias interface, all IP addresses on the device were removed. This bug has been fixed, and the script now correctly removes only IP addresses of the alias interface in this scenario.
DescriptionPatrick Talbert
2015-12-18 15:43:20 UTC
Description of problem:
Running ifdown on an alias interface removes every IPv4 address from the interface.
Version-Release number of selected component (if applicable):
9.03.49-1.el6 to 9.03.49-1.el6_7.3
How reproducible:
Always.
Steps to Reproduce:
1. Create two aliases:
/etc/sysconfig/network-scripts/ifcfg-eth0
-------------------------------------------
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.122.101
NETMASK=255.255.255.0
GATEWAY=192.168.122.1
DNS1=192.168.122.1
DEFROUTE=yes
/etc/sysconfig/network-scripts/ifcfg-eth0:1
-------------------------------------------
DEVICE=eth0:1
BOOTPROTO=none
IPADDR=192.168.122.102
NETMASK=255.255.255.0
ONPARENT=no
/etc/sysconfig/network-scripts/ifcfg-eth0:2
-------------------------------------------
DEVICE=eth0:2
BOOTPROTO=none
IPADDR=192.168.122.103
NETMASK=255.255.255.0
ONPARENT=no
2. Bring them up with ifup:
# ip addr show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 52:54:00:d8:c5:ea brd ff:ff:ff:ff:ff:ff
inet 192.168.122.101/24 brd 192.168.122.255 scope global eth0
inet 192.168.122.102/24 brd 192.168.122.255 scope global secondary eth0:1
inet 192.168.122.103/24 brd 192.168.122.255 scope global secondary eth0:2
inet6 fe80::5054:ff:fed8:c5ea/64 scope link
valid_lft forever preferred_lft forever
3. Bring one of them down with ifdown:
# ifdown eth0:1
Actual results:
All the IPv4 addresses are removed.
Expected results:
Only the eth0:1 secondary IP should be removed.
Additional info:
Appears to be related to the fix put in for BZ 1266861 ?
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-2016-0951.html
Description of problem: Running ifdown on an alias interface removes every IPv4 address from the interface. Version-Release number of selected component (if applicable): 9.03.49-1.el6 to 9.03.49-1.el6_7.3 How reproducible: Always. Steps to Reproduce: 1. Create two aliases: /etc/sysconfig/network-scripts/ifcfg-eth0 ------------------------------------------- DEVICE=eth0 ONBOOT=yes BOOTPROTO=static IPADDR=192.168.122.101 NETMASK=255.255.255.0 GATEWAY=192.168.122.1 DNS1=192.168.122.1 DEFROUTE=yes /etc/sysconfig/network-scripts/ifcfg-eth0:1 ------------------------------------------- DEVICE=eth0:1 BOOTPROTO=none IPADDR=192.168.122.102 NETMASK=255.255.255.0 ONPARENT=no /etc/sysconfig/network-scripts/ifcfg-eth0:2 ------------------------------------------- DEVICE=eth0:2 BOOTPROTO=none IPADDR=192.168.122.103 NETMASK=255.255.255.0 ONPARENT=no 2. Bring them up with ifup: # ip addr show eth0 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 52:54:00:d8:c5:ea brd ff:ff:ff:ff:ff:ff inet 192.168.122.101/24 brd 192.168.122.255 scope global eth0 inet 192.168.122.102/24 brd 192.168.122.255 scope global secondary eth0:1 inet 192.168.122.103/24 brd 192.168.122.255 scope global secondary eth0:2 inet6 fe80::5054:ff:fed8:c5ea/64 scope link valid_lft forever preferred_lft forever 3. Bring one of them down with ifdown: # ifdown eth0:1 Actual results: All the IPv4 addresses are removed. Expected results: Only the eth0:1 secondary IP should be removed. Additional info: Appears to be related to the fix put in for BZ 1266861 ?