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Bug 1654249

Summary: GATEWAY in /etc/sysconfig/network doesn't work
Product: Red Hat Enterprise Linux 8 Reporter: fzxiaomange <cyent>
Component: NetworkManagerAssignee: Francesco Giudici <fgiudici>
Status: CLOSED CURRENTRELEASE QA Contact: Desktop QE <desktop-qa-list>
Severity: medium Docs Contact: Marc Muehlfeld <mmuehlfe>
Priority: medium    
Version: 8.0CC: atragler, bgalvani, cyent, fgiudici, lrintel, rkhan, sukulkar, thaller
Target Milestone: rcKeywords: EasyFix
Target Release: 8.0   
Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2019-08-07 09:05:30 UTC Type: Bug
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description fzxiaomange 2018-11-28 10:26:17 UTC 
Description of problem:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8-beta/html/configuring_and_managing_networking/getting-started-with-managing-networking-with-networkmanager#Using-NetworkManager-with-sysconfig-files_getting-started-with-networking-devices-with-NetworkManager
In the redhat doc, it describe "For global settings, use the /etc/sysconfig/network file". But when I set GATEWAY=x.x.x.x in /etc/sysconfig/network, then nmcli c reload and reboot os, the gateway is not the GATEWAY value.

Version-Release number of selected component (if applicable):
rhel8.0 beta

Actual results:
When set GATEWAY=192.168.1.1 in /etc/sysconfig/network and reboot, the `ip route` doesn't display `default via 192.168.1.1`

Expected results:
When set GATEWAY=192.168.1.1 in /etc/sysconfig/network and reboot, the `ip route` should display `default via 192.168.1.1`
Comment 1 Thomas Haller 2018-11-28 11:55:02 UTC 
what is the content of our ifcfg files?
Comment 2 Thomas Haller 2018-11-28 12:01:14 UTC 
> of our ifcfg files?
     ^^ "Your"

not just "/etc/sysconfig/network" file, but also the relevant /etc/sysconfig/network-scripts/* files. Thanks.
Comment 3 fzxiaomange 2018-12-05 08:04:33 UTC 
sorry，the nic state is dhcp, so /etc/sysconfig/network is not effected, when I set ifcfg BOOTPROTO=none + NM_CONTROLLED=no，the /etc/sysconfig/network is effect.

You can close the bug.
Comment 4 Thomas Haller 2018-12-05 08:30:28 UTC 
With NM_CONTROLLED=no you tell NetworkManager to ignore this ifcfg file and let initscript handle it. This bug is reported against NetworkManager, so not letting the file being handled by NetworkManager does not solve this bug (it merely avoids it). Also, the documentation recommending this, is still wrong.

NetworkManager could fix this to accept GATEWAY from /etc/sysconfig/network. But I don't think doing that (or advising to do that) is a good idea. With legacy initscripts, various configuration files are sourced together, and the possibilities where the configuration comes from is endless (because you could just source yet another file). For NetworkManager, that "flexibility" likely doesn't make sense. If you edit ifcfg file by hand (which you may do instead of using nmcli), then write them in a manner that is suitable for NetworkManager (see `man nm-settings-ifcfg-rh`).

The documentation should be fixed instead not to suggest editing /etc/sysconfig/network [1].



[1] https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8-beta/html/configuring_and_managing_networking/getting-started-with-managing-networking-with-networkmanager#Using-NetworkManager-with-sysconfig-files_getting-started-with-networking-devices-with-NetworkManager
Comment 6 Marc Muehlfeld 2019-08-07 09:05:30 UTC 
The sentence "For global settings, use the /etc/sysconfig/network file." was removed from the second paragraph of the following section:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/configuring_and_managing_networking/index#Using-NetworkManager-with-sysconfig-files_getting-started-with-networking-devices-with-NetworkManager

The changes are now available on the Customer Portal.