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Bug 1964336 - Reapply does not remove old IPv4 routes in non-default route table
Summary: Reapply does not remove old IPv4 routes in non-default route table
Keywords:
Status: CLOSED DEFERRED
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: NetworkManager
Version: 8.4
Hardware: x86_64
OS: Linux
low
low
Target Milestone: beta
: 8.6
Assignee: NetworkManager Development Team
QA Contact: Desktop QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-05-25 09:00 UTC by Gris Ge
Modified: 2021-09-18 08:30 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-09-18 08:30:50 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Reproduce script (1.06 KB, application/x-shellscript)
2021-05-25 09:00 UTC, Gris Ge 		no flags Details
System logs with NM trace enabled (83.61 KB, text/plain)
2021-05-25 09:01 UTC, Gris Ge 		no flags Details
View All

Description Gris Ge 2021-05-25 09:00:15 UTC 
Description of problem:

Issue been found by bug https://bugzilla.redhat.com/show_bug.cgi?id=1962551

When nmstate is doing reapply on connection with ipv4 routes changed, the old removed route still exists in kernel.

Version-Release number of selected component (if applicable):
NetworkManager-1.30.0-7.el8.x86_64
nmstate-1.0.2-5.el8

How reproducible:
100%

Steps to Reproduce:
1. sudo ./reproducer.sh
2.
3.

Actual results:

Got `192.0.1.0/24 via 192.0.1.100 dev dummy0 proto static metric 150`

Expected results:

No output from `ip route show table 5000`

Additional info:

This bug might related to https://bugzilla.redhat.com/show_bug.cgi?id=1837254 please take a look.

Nmstate has workaround for it, so low priority.
Comment 1 Gris Ge 2021-05-25 09:00:54 UTC 
Created attachment 1786776 [details]
Reproduce script
Comment 2 Gris Ge 2021-05-25 09:01:25 UTC 
Created attachment 1786778 [details]
System logs with NM trace enabled
Comment 3 Gris Ge 2021-09-18 08:30:50 UTC 
Closing as differed as workaround code in nmstate serve us well.
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