RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Description of problem:
When editing the ipv4 properties for an existing connection in NetworkManager its impossible to enter a default gateway. 

Version-Release number of selected component (if applicable):
NetworkManager-glib-0.7.997-1.el6.x86_64
NetworkManager-gnome-0.7.997-1.el6.x86_64
NetworkManager-0.7.997-1.el6.x86_64

How reproducible:
Reproduceable everytime

Steps to Reproduce:
1.Connect machine to lan
2.NM sets up an Auto mode and dhcp's
3.Right click on NM icon in the notification area
4.select Edit connections
5. select 'Auto eht0' and click edit
6. on the ipv4 tab, select manual and click add
7. Enter 'Address -> 192.168.1.32', 'Netmask -> 255.255.255.0', 'Gateway -> 192.168.1.1'.
Actual results:

1. Navigate to the DNS Servers: box, and Gateway entry is reset to '0.0.0.0'
2. Enter DNS sever -> 192.168.1.3; click back to edit Gateway, enter '192.168.1.1'.
3. Shift focus to any other component on that window, and the gateway is reset to '0.0.0.0'
  
Expected results:
Navigating away from the Gateway entry should not reset the contents to '0.0.0.0'

Additional info:

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.

This is due to GTK's tree-view editing handling; and has since been fixed upstream and in recent RHEL6 builds.  It should be fixed in RHEL6 Beta 2 snapshots or anything after 2010-05-05.

Upstream network-manager-applet commit:

commit cb9d7f232e2661c34d0183c03fbe9a470bc1988f
Author: cee1 <fykcee1>
Date:   Mon Apr 26 23:42:43 2010 -0700

    editor: commit IPv6 address changes on focus-out
    
    Cleanups and fixes by dcbw.