Bug 821159 - Unable to create GRE tunnel: Address family not supported by protocol
Unable to create GRE tunnel: Address family not supported by protocol
Product: Fedora
Classification: Fedora
Component: openvswitch (Show other bugs)
All Linux
high Severity high
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Assigned To: Chris Wright
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-05-12 11:45 EDT by Edouard Bourguignon
Modified: 2012-06-19 19:40 EDT (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2012-06-19 19:40:18 EDT
Type: Bug
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Edouard Bourguignon 2012-05-12 11:45:49 EDT
Description of problem:
When trying to create a GRE tunnel between two ovs-vswitchd, no GRE traffic is generated, GRE interface seems to be disabled.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. yum install openvswtich
2. service openvswitch start
3. ovs-vsctl add-br br0
4. ovs-vsctl \
-- --id=@i create interface name=gre0 type=gre \
options="remote_ip=,local_ip=,key=1" \
-- --id=@p create port name=gre0 interfaces=[@i] \
-- add bridge br0 ports @p

Actual results:
May 12 17:32:55|00032|dpif|WARN|system@br0: failed to add gre0 as port: Address family not supported by protocol
May 12 17:32:55|00033|bridge|WARN|gre0 port has no interfaces, dropping
May 12 17:32:55|00034|bridge|INFO|destroyed port gre0 on bridge br0
May 12 17:32:55|00035|bridge|WARN|bridge br0: using default bridge Ethernet address 3a:46:68:e4:a2:4d

Kernel Gre module is not loaded since ovs uses its own implementation.

Expected results:
gre interface/port in ovs should be working

Additional info:
tcpdump shows no GRE traffic
Comment 1 Edouard Bourguignon 2012-05-17 05:52:11 EDT

I'm using openvswitch for a couple of years on RHEL and it's the first time I get this error. Any idea?
Comment 2 Edouard Bourguignon 2012-05-28 06:21:47 EDT
Anyone here?
Comment 3 Chris Wright 2012-06-19 19:40:18 EDT
The Fedora Open vSwitch kernel module is directly from upstream Linux which does not (yet) support tunnelling mode.

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