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Bug 1784289 - [machines][RFE] Support compressed IPV6 addresses when setting the DHCPv6 during virtual network creation
Summary: [machines][RFE] Support compressed IPV6 addresses when setting the DHCPv6 dur...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: cockpit-appstream
Version: 8.2
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: 8.2
Assignee: Katerina Koukiou
QA Contact: YunmingYang
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-12-17 07:35 UTC by YunmingYang
Modified: 2023-02-12 22:17 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-28 15:43:08 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-31442 0 None None None 2023-02-12 22:17:28 UTC
Red Hat Product Errata RHBA-2020:1639 0 None None None 2020-04-28 15:43:15 UTC

Description YunmingYang 2019-12-17 07:35:53 UTC 
Description of problem:
When creating IPv6 network, there will be an error which is 'Address not within subnet' if I set the configuration below.
IP Configuration: IPv6 only
IPv6 Network: FEC0::1
Prefix Length: 48
Set DHCP Range
    Start: FEC0::1
    End: FEC0::10

Version-Release number of selected component (if applicable):
cockpit-machines-208-1.el8.noarch
libvirt-dbus-1.2.0-3.module+el8.1.0+4066+0f1aadab.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Open the network creation dialog
2. Set the network with the configuration below:
     name: random string
     IP Configuration: IPv6 only
     IPv6 Network: FEC0::1
     Prefix Length: 48
     Set DHCP Range
         Start: FEC0::1
         End: FEC0::10
    Then, click the 'Create' Button

Actual results:
1. There will be an error shown beside the 'End' field. The error is 'Address not within subnet'. 
Expected results:
1. The creation of IPv6 network can be created correctly.
Additional info:
Comment 1 Katerina Koukiou 2019-12-18 10:16:16 UTC 
The issue here is that the address provided is compressed and we currently do not support that.
If you change that to the expanded equivalent the Network Creation will succeed.

Expanded Address:  fec0:0:0:0:0:0:0:1
Compressed Address:  fec0::1

I will keep this open as an RFE though.
Comment 2 Martin Pitt 2020-01-07 10:02:10 UTC 
https://github.com/cockpit-project/cockpit/pull/13352
Comment 3 Katerina Koukiou 2020-01-14 16:04:14 UTC 
Fixed with:

commit 49c2a1d154aed3ee40137ee8ad63cb82c41b74f9
Author: Katerina Koukiou <kkoukiou>
Date:   Tue Jan 14 16:56:15 2020 +0100

    machines: decompress ipv6 addresses before validating them
Comment 5 Xianghua Chen 2020-02-06 07:41:56 UTC 
Verified with package:
cockpit-machines-211-1.el8.noarch
libvirt-dbus-1.2.0-3.module+el8.1.0+4066+0f1aadab.x86_64

Steps:
1. Open the network creation dialog
2. Set the network with the configuration below:
     name: random string
     Forward Mode:NAT
     Device:Automatic
     IP Configuration: IPv6 only
     IPv6 Network: FEC0::1
     Prefix Length: 64
     Set DHCP Range
         Start: FEC0::1
         End: FEC0::10
    Then, click the 'Create' Button
3. Click Activate

The network can be create and activate successfully.
Comment 8 errata-xmlrpc 2020-04-28 15:43:08 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://access.redhat.com/errata/RHBA-2020:1639
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