View Issue Details

IDProjectCategoryView StatusLast Update
0016673CentOS-7NetworkManagerpublic2019-10-30 16:43
Reportervboxreal 
PrioritynormalSeveritymajorReproducibilityalways
Status newResolutionopen 
PlatformDell R740 and R740xdOSCentOS LinuxOS Version3.10.0-1062.4.1
Product Version7.7-1908 
Target VersionFixed in Version 
Summary0016673: System Update and Reboot broke network connections
DescriptionAfter yum update and reboot the primary network connection no longer worked. I could run ifdown eml1; ifup em1; to bring up the network. The systems have iDRAC remote access hardware and no hypervisor.

# yum history info 84
Loaded plugins: fastestmirror, langpacks
Transaction ID : 84
Begin time : Tue Oct 22 13:51:13 2019
Begin rpmdb : 1884:eb5f44ea4b3880591ac3fa7a6a55e7f9b4e42a6c
End time : 13:53:28 2019 (135 seconds)
End rpmdb : 1885:97f8de6a6995ebf3ad48025dc6493c61b1ff857b
User : <root>
Return-Code : Success
Command Line : update
Transaction performed with:
    Installed rpm-4.11.3-40.el7.x86_64 @base
    Installed yum-3.4.3-163.el7.centos.noarch @base
    Installed yum-plugin-fastestmirror-1.1.31-52.el7.noarch @base
Packages Altered:
    Updated accountsservice-0.6.50-5.el7.x86_64 @base
    Update 0.6.50-6.el7_7.x86_64 @updates
    Updated accountsservice-libs-0.6.50-5.el7.x86_64 @base
    Update 0.6.50-6.el7_7.x86_64 @updates
    Updated binutils-2.27-41.base.el7.x86_64 @base
    Update 2.27-41.base.el7_7.1.x86_64 @updates
    Updated device-mapper-7:1.02.158-2.el7.x86_64 @base
    Update 7:1.02.158-2.el7_7.2.x86_64 @updates
    Updated device-mapper-event-7:1.02.158-2.el7.x86_64 @base
    Update 7:1.02.158-2.el7_7.2.x86_64 @updates
    Updated device-mapper-event-libs-7:1.02.158-2.el7.x86_64 @base
    Update 7:1.02.158-2.el7_7.2.x86_64 @updates
    Updated device-mapper-libs-7:1.02.158-2.el7.x86_64 @base
    Update 7:1.02.158-2.el7_7.2.x86_64 @updates
    Updated firefox-60.9.0-1.el7.centos.x86_64 @updates
    Update 68.1.0-2.el7.centos.x86_64 @updates
    Updated firewall-config-0.6.3-2.el7_7.1.noarch @updates
    Update 0.6.3-2.el7_7.2.noarch @updates
    Updated firewalld-0.6.3-2.el7_7.1.noarch @updates
    Update 0.6.3-2.el7_7.2.noarch @updates
    Updated firewalld-filesystem-0.6.3-2.el7_7.1.noarch @updates
    Update 0.6.3-2.el7_7.2.noarch @updates
    Updated flatpak-1.0.2-7.el7.x86_64 @base
    Update 1.0.9-8.el7_7.x86_64 @updates
    Updated flatpak-libs-1.0.2-7.el7.x86_64 @base
    Update 1.0.9-8.el7_7.x86_64 @updates
    Updated gnome-shell-3.28.3-11.el7.x86_64 @base
    Update 3.28.3-13.el7_7.x86_64 @updates
    Updated hostname-3.13-3.el7.x86_64 @base
    Update 3.13-3.el7_7.1.x86_64 @updates
    Updated ipa-client-4.6.5-11.el7.centos.x86_64 @base
    Update 4.6.5-11.el7.centos.3.x86_64 @updates
    Updated ipa-client-common-4.6.5-11.el7.centos.noarch @base
    Update 4.6.5-11.el7.centos.3.noarch @updates
    Updated ipa-common-4.6.5-11.el7.centos.noarch @base
    Update 4.6.5-11.el7.centos.3.noarch @updates
    Updated ipa-python-compat-4.6.5-11.el7.centos.noarch @base
    Update 4.6.5-11.el7.centos.3.noarch @updates
    Install kernel-3.10.0-1062.4.1.el7.x86_64 @updates
    Erase kernel-devel-3.10.0-957.21.2.el7.x86_64 @updates
    Install kernel-devel-3.10.0-1062.4.1.el7.x86_64 @updates
    Updated kernel-headers-3.10.0-1062.1.2.el7.x86_64 @updates
    Update 3.10.0-1062.4.1.el7.x86_64 @updates
    Updated kernel-tools-3.10.0-1062.1.2.el7.x86_64 @updates
    Update 3.10.0-1062.4.1.el7.x86_64 @updates
    Updated kernel-tools-libs-3.10.0-1062.1.2.el7.x86_64 @updates
    Update 3.10.0-1062.4.1.el7.x86_64 @updates
    Updated kpatch-0.6.1-4.el7.noarch @base
    Update 0.6.1-5.el7_7.noarch @updates
    Updated libgudev1-219-67.el7_7.1.x86_64 @updates
    Update 219-67.el7_7.2.x86_64 @updates
    Updated lvm2-7:2.02.185-2.el7.x86_64 @base
    Update 7:2.02.185-2.el7_7.2.x86_64 @updates
    Updated lvm2-libs-7:2.02.185-2.el7.x86_64 @base
    Update 7:2.02.185-2.el7_7.2.x86_64 @updates
    Updated mutter-3.28.3-10.el7.x86_64 @base
    Update 3.28.3-11.el7_7.x86_64 @updates
    Updated procps-ng-3.3.10-26.el7.x86_64 @base
    Update 3.3.10-26.el7_7.1.x86_64 @updates
    Updated python-firewall-0.6.3-2.el7_7.1.noarch @updates
    Update 0.6.3-2.el7_7.2.noarch @updates
    Updated python-perf-3.10.0-1062.1.2.el7.x86_64 @updates
    Update 3.10.0-1062.4.1.el7.x86_64 @updates
    Updated python-requests-2.6.0-5.el7.noarch @base
    Update 2.6.0-7.el7_7.noarch @updates
    Updated python2-ipaclient-4.6.5-11.el7.centos.noarch @base
    Update 4.6.5-11.el7.centos.3.noarch @updates
    Updated python2-ipalib-4.6.5-11.el7.centos.noarch @base
    Update 4.6.5-11.el7.centos.3.noarch @updates
    Updated rsyslog-8.24.0-41.el7_7.x86_64 @updates
    Update 8.24.0-41.el7_7.2.x86_64 @updates
    Updated sos-3.7-6.el7.centos.noarch @updates
    Update 3.7-7.el7.centos.noarch @updates
    Updated systemd-219-67.el7_7.1.x86_64 @updates
    Update 219-67.el7_7.2.x86_64 @updates
    Updated systemd-libs-219-67.el7_7.1.x86_64 @updates
    Update 219-67.el7_7.2.x86_64 @updates
    Updated systemd-python-219-67.el7_7.1.x86_64 @updates
    Update 219-67.el7_7.2.x86_64 @updates
    Updated systemd-sysv-219-67.el7_7.1.x86_64 @updates
    Update 219-67.el7_7.2.x86_64 @updates
    Updated systemtap-4.0-9.el7.x86_64 @base
    Update 4.0-10.el7_7.x86_64 @updates
    Updated systemtap-client-4.0-9.el7.x86_64 @base
    Update 4.0-10.el7_7.x86_64 @updates
    Updated systemtap-devel-4.0-9.el7.x86_64 @base
    Update 4.0-10.el7_7.x86_64 @updates
    Updated systemtap-runtime-4.0-9.el7.x86_64 @base
    Update 4.0-10.el7_7.x86_64 @updates
history info

Network status shows no errors but connection does not work.
# systemctl status network -l
* network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
   Active: active (exited) since Wed 2019-10-30 10:22:01 MDT; 1min 13s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 2057 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=0/SUCCESS)

Oct 30 10:22:00 vbox systemd[1]: Starting LSB: Bring up/down networking...
Oct 30 10:22:01 vbox network[2057]: Bringing up loopback interface: [ OK ]
Oct 30 10:22:01 vbox network[2057]: Bringing up interface em1: Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/3)
Oct 30 10:22:01 vbox network[2057]: [ OK ]
Oct 30 10:22:01 vbox systemd[1]: Started LSB: Bring up/down networking.
Steps To ReproduceAttached is the ifconfig after the reboot when the network does not work (research_network_errors_after_reboot.jpg). You will see the IP 10.24.10.6 is assigned to idrac when it should be assigned to em1.

After running # ifdown em1; ifup em1; then the network works correctly. Attached is the ifconfig after the network restart (research_network_errors_after_ifdown_ifup.jpg). IP 10.24.10.6 is now properly assigned to em1 and 169.254.0.2 to idrac.

root@vbox: /etc/sysconfig/network-scripts # ll
total 268
-rw-r--r--. 1 root root 390 Oct 4 13:47 ifcfg-em1
-rw-r--r--. 1 root root 380 Jan 21 2019 ifcfg-em1.bak
-rw-r--r--. 1 root root 275 Jan 21 2019 ifcfg-em2
-rw-r--r--. 1 root root 275 Jan 21 2019 ifcfg-em3
-rw-r--r--. 1 root root 275 Jan 21 2019 ifcfg-em4
-rw-r--r--. 1 root root 254 Mar 29 2019 ifcfg-lo
lrwxrwxrwx. 1 root root 24 Sep 25 09:01 ifdown -> ../../../usr/sbin/ifdown
-rwxr-xr-x. 1 root root 654 Mar 29 2019 ifdown-bnep
-rwxr-xr-x. 1 root root 6532 Mar 29 2019 ifdown-eth
-rwxr-xr-x. 1 root root 6190 Aug 9 08:31 ifdown-ib
-rwxr-xr-x. 1 root root 781 Mar 29 2019 ifdown-ippp
-rwxr-xr-x. 1 root root 4540 Mar 29 2019 ifdown-ipv6
lrwxrwxrwx. 1 root root 11 Sep 25 09:01 ifdown-isdn -> ifdown-ippp
-rwxr-xr-x. 1 root root 2130 Mar 29 2019 ifdown-post
-rwxr-xr-x. 1 root root 1068 Mar 29 2019 ifdown-ppp
-rwxr-xr-x. 1 root root 870 Mar 29 2019 ifdown-routes
-rwxr-xr-x. 1 root root 1456 Mar 29 2019 ifdown-sit
-rwxr-xr-x. 1 root root 1621 Mar 17 2017 ifdown-Team
-rwxr-xr-x. 1 root root 1556 Mar 17 2017 ifdown-TeamPort
-rwxr-xr-x. 1 root root 1462 Mar 29 2019 ifdown-tunnel
lrwxrwxrwx. 1 root root 22 Sep 25 09:01 ifup -> ../../../usr/sbin/ifup
-rwxr-xr-x. 1 root root 12415 Mar 29 2019 ifup-aliases
-rwxr-xr-x. 1 root root 910 Mar 29 2019 ifup-bnep
-rwxr-xr-x. 1 root root 13475 Mar 29 2019 ifup-eth
-rwxr-xr-x. 1 root root 10114 Aug 9 08:31 ifup-ib
-rwxr-xr-x. 1 root root 12075 Mar 29 2019 ifup-ippp
-rwxr-xr-x. 1 root root 11893 Mar 29 2019 ifup-ipv6
lrwxrwxrwx. 1 root root 9 Sep 25 09:01 ifup-isdn -> ifup-ippp
-rwxr-xr-x. 1 root root 650 Mar 29 2019 ifup-plip
-rwxr-xr-x. 1 root root 1064 Mar 29 2019 ifup-plusb
-rwxr-xr-x. 1 root root 4997 Mar 29 2019 ifup-post
-rwxr-xr-x. 1 root root 4154 Mar 29 2019 ifup-ppp
-rwxr-xr-x. 1 root root 2001 Mar 29 2019 ifup-routes
-rwxr-xr-x. 1 root root 3303 Mar 29 2019 ifup-sit
-rwxr-xr-x. 1 root root 1755 Mar 17 2017 ifup-Team
-rwxr-xr-x. 1 root root 1876 Mar 17 2017 ifup-TeamPort
-rwxr-xr-x. 1 root root 2711 Mar 29 2019 ifup-tunnel
-rwxr-xr-x. 1 root root 1836 Mar 29 2019 ifup-wireless
-rwxr-xr-x. 1 root root 5419 Mar 29 2019 init.ipv6-global
-rw-r--r--. 1 root root 20671 Mar 29 2019 network-functions
-rw-r--r--. 1 root root 31027 Mar 29 2019 network-functions-ipv6

Here are /etc/sysconfig/network-scripts for em1 and idrac.
root@vbox: /etc/sysconfig/network-scripts # cat ifcfg-em1
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME=em1
UUID=97ecddd3-xxxx-xxxx-xxxx-xxxxxxx
ONBOOT=yes
IPADDR=10.24.10.6
PREFIX=24
GATEWAY=10.24.10.1
DNS1=xxx.xxx.xxx.xxx
ZONE=public
DNS2=xxx.xxx.xxx.xxx
DNS3=xxx.xxx.xxx.xxx

root@vbox: /etc/sysconfig/network-scripts # cat ifcfg-idrac
HWADDR=D0:94:66:xx:xx:xx
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
IPADDR=169.254.0.2
PREFIX=16
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=idrac
UUID=05edfce9-xxxx-xxxx-xxxx-xxxxxxxx
ONBOOT=no
Additional InformationI have temporarily fixed the issue on reboot by adding the script /sbin/ifup-local to reconnect em1.

#!/bin/bash
ifdown em1
ifup em1
logger /sbin/ifup-local run to bring down/up eml network connection due to network connection issue
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Activities

vboxreal

vboxreal

2019-10-30 16:43

reporter  

research_network_errors_after_reboot.jpg (970,805 bytes)
research_network_errors_after_ifdown_ifup.jpg (1,003,296 bytes)

Issue History

Date Modified Username Field Change
2019-10-30 16:43 vboxreal New Issue
2019-10-30 16:43 vboxreal File Added: research_network_errors_after_reboot.jpg
2019-10-30 16:43 vboxreal File Added: research_network_errors_after_ifdown_ifup.jpg