Bug 1250019

Summary: NetworkManager doesn't handle MTU correctly
Product: Red Hat Enterprise Linux 7 Reporter: Lubomir Rintel <lrintel>
Component: NetworkManagerAssignee: Lubomir Rintel <lrintel>
Status: CLOSED ERRATA QA Contact: Desktop QE <desktop-qa-list>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.2CC: dcbw, jklimes, lrintel, thaller, vbenes
Target Milestone: rcKeywords: Regression
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: NetworkManager-1.0.4-4.el7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-11-19 11:02:43 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 Lubomir Rintel 2015-08-04 11:14:17 UTC
Neeed to backport these:

Bug 752993 - 1.0.4: Interface enp3s0 has MTU of 1492 -- should be 1500 (edit) 
https://bugzilla.gnome.org/show_bug.cgi?id=752993

Bug 752508 - NetworkManager 1.0.4 minimizes MTU
https://bugzilla.gnome.org/show_bug.cgi?id=752508

Comment 3 Vladimir Benes 2015-09-04 20:07:07 UTC
Verified by setting MTU to 666 that should be ignored and set at least to 1280 so ipv6 can work. Setting MTU to 9000 works as well. Verified on all architectures.

Comment 4 errata-xmlrpc 2015-11-19 11:02:43 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-2315.html