Bug 1255660

Summary:	NetworkManager - routes issue
Product:	Red Hat Enterprise Linux 7	Reporter:	mkubat <mkubat>
Component:	NetworkManager	Assignee:	Rashid Khan <rkhan>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.0	CC:	bgalvani, dcbw, jklimes, lrintel, mkubat, oliver, rkhan, thaller, vbenes
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-09-29 15:16:43 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description mkubat 2015-08-21 09:29:40 UTC

Description of problem:
NetworkManager is not setting up properly GW when you swap from DHCP to Manual and back to DHCP.

Version-Release number of selected component (if applicable): RHEL 7 and above
tested on version - NetworkManager-1.0.0-14.git20150121.b4ea599c.el7.x86_64

How reproducible:
Swap to manual settings in NM, set some network and swap back to DHCP, check routes.

Steps to Reproduce:
1.) connect on wire with DHCP settings -> up and running
2.) change network settings to manual and set i.e. 192.168.1.1,
255.255.255.0 and GW 192.168.1.254 and some DNS 192.168.1.254 -> up
and
running
3.) change manual settings to automatic, back to DHCP -> you get IP
address, DNS server but you still have GW 192.168.1.254
4.) manually: ip route add default via 10.33.1.254 -> up and running

Actual results:
not properly set GW after getting back to DHCP.

Expected results:
Properly set GW after getting back to DHCP.

Additional info:
You can fix it by setting the GW to 0.0.0.0 in manual and than change to DHCP.. that will give you a new GW.

Please open a bugzilla and add me as CC to this.

Thanks
Oliver

Comment 1 Vladimir Benes 2015-08-21 09:38:32 UTC

(In reply to mkubat from comment #0)
> Description of problem:
> NetworkManager is not setting up properly GW when you swap from DHCP to
> Manual and back to DHCP.
> 
> Version-Release number of selected component (if applicable): RHEL 7 and
> above
> tested on version - NetworkManager-1.0.0-14.git20150121.b4ea599c.el7.x86_64
> 
> How reproducible:
> Swap to manual settings in NM, set some network and swap back to DHCP, check
> routes.
> 
> Steps to Reproduce:
> 1.) connect on wire with DHCP settings -> up and running
> 2.) change network settings to manual and set i.e. 192.168.1.1,
> 255.255.255.0 and GW 192.168.1.254 and some DNS 192.168.1.254 -> up
> and
> running

how/where? in nmcli?

> 3.) change manual settings to automatic, back to DHCP -> you get IP
> address, DNS server but you still have GW 192.168.1.254

the same as above.. how did you change the settings?

> 4.) manually: ip route add default via 10.33.1.254 -> up and running
> 

thanks for info, what about flags?

Comment 3 Jirka Klimes 2015-08-21 11:07:36 UTC

I suppose the reporter used gnome-control center to edit the profile. I can't reproduce the problem with the latest RHEL 7.2 builds.
I'd say the bug is in gnome-control-center, but it is fixed now - bug 1039068.

Comment 4 mkubat 2015-08-21 12:04:43 UTC

additional info:

We've tested it with my colleague on RHEL 7.2 same package version.

zjurman|brb> mkubat|brb: btw my termin
<zjurman|brb> NetworkManager-1.0.0-14.git20150121.b4ea599c.el7.x86_64
* zjurman|brb is now known as zjurman
<zjurman> mkubat|brb: I was forced to downgrade it mannualy as no networks works after update
<zjurman> so I am expecting I have same bug with me, will test
* zjurman is back
<zjurman> mkubat|brb: no problem at all
* You are now known as mkubat
<mkubat> zjurman, nice so seems it's fixed in 7.2, in bug report is mentioned it's some gnome-control-center issue
<mkubat> nice
<zjurman> control-center-3.14.5-6.el7.x86_64

Jirka is right.

Fixed.

Comment 6 Jirka Klimes 2015-09-29 15:16:43 UTC

Closing the bug based on comment #4.
Should you still see an issue, feel free to reopen.

Comment 7 Red Hat Bugzilla 2023-09-14 03:04:04 UTC

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days