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Bug 1507587 - openvswitch components not listening on ipv6
Summary: openvswitch components not listening on ipv6
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: openvswitch
Version: 7.0
Hardware: Unspecified
OS: Unspecified
low
medium
Target Milestone: pre-dev-freeze
: ---
Assignee: Jakub Sitnicki
QA Contact: ovs-qe
URL:
Whiteboard:
Depends On:
Blocks: 1403675 1614345
TreeView+ depends on / blocked
 
Reported: 2017-10-30 15:55 UTC by Jiri Belka
Modified: 2018-08-09 12:57 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1614345 (view as bug list)
Environment:
Last Closed: 2018-07-31 13:52:03 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1507543 0 low CLOSED ovn-controller: ovs|01240|stream_ssl|ERR|ssl:${ipv6_addr}: connect: Address family not supported by protocol 2021-02-22 00:41:40 UTC

Internal Links: 1507543

Description Jiri Belka 2017-10-30 15:55:15 UTC 
Description of problem:

related to BZ1507543, ie. trying to have ipv6 only host up.

ovsdb-server listens by default only on ipv4, not very helpful to conquer networks which must use ipv6.

see http://openvswitch.org/support/dist-docs/ovsdb-server.1.html

# netstat -antuop | grep ov[sn]
tcp        0      0 0.0.0.0:6641            0.0.0.0:*               LISTEN      5065/ovsdb-server    off (0.00/0/0)
tcp        0      0 0.0.0.0:6642            0.0.0.0:*               LISTEN      5073/ovsdb-server    off (0.00/0/0)
tcp        0      0 10.37.138.234:6642      10.37.138.244:49144     ESTABLISHED 5073/ovsdb-server    off (0.00/0/0)

# grep -IR 664[12] /var/lib/openvswitch/
/var/lib/openvswitch/ovnnb_db.db:{"_date":1507900220199,"NB_Global":{"d9ada689-f11a-4820-927c-f0c6ba42b019":{"connections":["uuid","643f6975-9f69-4196-a19e-d1d54b9d58d1"]}},"_comment":"ovs-nbctl: ovn-nbctl set-connection pssl:6641","Connection":{"643f6975-9f69-4196-a19e-d1d54b9d58d1":{"target":"pssl:6641"}}}
/var/lib/openvswitch/ovnsb_db.db:{"_date":1507900220253,"SB_Global":{"1610f49e-f448-4532-bdef-201123681f9b":{"connections":["uuid","e80b7f7c-643b-4ace-8321-1071d5e5a63a"]}},"_comment":"ovs-sbctl: ovn-sbctl set-connection pssl:6642","Connection":{"e80b7f7c-643b-4ace-8321-1071d5e5a63a":{"target":"pssl:6642"}}}

Version-Release number of selected component (if applicable):
ovirt-engine-setup-4.2.0-0.0.master.20171029154613.git19686f3.el7.centos.noarch

How reproducible:
100%

Steps to Reproduce:
1. have os with ipv6 address too
2. engine-setup
3. see if ovs stuff listens on ipv6 addresses as well

Actual results:
ovs stuff does not listen on ipv6

Expected results:
should listen

Additional info:
Comment 1 Dan Kenigsberg 2018-07-12 15:12:45 UTC 
Hopefully this can be solved on OVS side. If RHV needs to intervene, we'd clone the bug.
Comment 3 Jakub Sitnicki 2018-07-31 13:52:03 UTC 
Dan, Jiri,

ovsdb-server supports listening on both IPv4 and IPv6. It can be enabled by setting the listening address to '::' (IPv6 wildcard address, all zeros). In terms of configuration commands this translates to:

$ ovn-nbctl set-connection 'pssl:6641:[::]'
$ ovn-sbctl set-connection 'pssl:6642:[::]'

By default, that is if you don't specify the address, ovsdb-server listens only on IPv4. This behavior is also documented in ovsdb-server(1) man-page under the '--remote' option.

Works with OVS/OVN v2.7+.

I'm guessing you are already using 'set-connection' to enable SSL and so it would seem like a viable solution to adjust the commands to also specify the listening address.

If that does not work for you, please let me know and we'll reopen the issue.

Thanks,
Jakub
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