OL 7 - NetworkManager-1.8.0-x fails to set the default gateway and subnet route for interfaces configured with DHCP/STATIC on UEK R3

(Doc ID 2314550.1)

Last updated on OCTOBER 11, 2017

Applies to:

Linux OS - Version Oracle Linux 7.0 with Unbreakable Enterprise Kernel [3.8.13] and later
Information in this document applies to any platform.

Symptoms

Oracle Linux 7.4 or prior Oracle Linux 7.x running UEK3 with Network Manager 1.8.0-x will fails to set the default gateway and subnet route for the interfaces configured with DHCP/STATIC IP.

--Network Manager Enabled--
# route -n
Kernel IP routing table
Destination Gateway Genmask      Flags Metric Ref Use Iface
0.0.0.0 192.168.56.1 0.0.0.0      UG    100    0   0  enp0s3
-- Network Manager Disabled--
# route -n
Kernel IP routing table
Destination Gateway Genmask       Flags Metric Ref Use Iface
0.0.0.0 192.168.56.1 0.0.0.0       UG    0     0    0 enp0s3
192.168.56.0 0.0.0.0 255.255.255.0 U     0     0    0 enp0s3

 

Changes

 Upgrade of Network Manager 1.4.0-x to 1.8.0-x will introduce this problem.

Cause

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