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<title>linux-toradex.git/Documentation/networking/vrf.txt, branch v4.19-rc4</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>doc: Update VRF documentation metric</title>
<updated>2017-10-20T12:03:03+00:00</updated>
<author>
<name>Donald Sharp</name>
<email>sharpd@cumulusnetworks.com</email>
</author>
<published>2017-10-18T14:24:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=17c918840fb07e5819f8df03345d7f4a5e5b791c'/>
<id>17c918840fb07e5819f8df03345d7f4a5e5b791c</id>
<content type='text'>
Two things:

1) Update examples to show usage of metric
2) Discuss reasoning for using such a high metric.

Signed-off-by: Donald Sharp &lt;sharpd@cumulusnetworks.com&gt;
Acked-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
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<pre>
Two things:

1) Update examples to show usage of metric
2) Discuss reasoning for using such a high metric.

Signed-off-by: Donald Sharp &lt;sharpd@cumulusnetworks.com&gt;
Acked-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net: Avoid receiving packets with an l3mdev on unbound UDP sockets</title>
<updated>2017-01-30T20:00:58+00:00</updated>
<author>
<name>Robert Shearman</name>
<email>rshearma@brocade.com</email>
</author>
<published>2017-01-26T18:02:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=63a6fff353d01da5a22b72670c434bf12fa0e3b8'/>
<id>63a6fff353d01da5a22b72670c434bf12fa0e3b8</id>
<content type='text'>
Packets arriving in a VRF currently are delivered to UDP sockets that
aren't bound to any interface. TCP defaults to not delivering packets
arriving in a VRF to unbound sockets. IP route lookup and socket
transmit both assume that unbound means using the default table and
UDP applications that haven't been changed to be aware of VRFs may not
function correctly in this case since they may not be able to handle
overlapping IP address ranges, or be able to send packets back to the
original sender if required.

So add a sysctl, udp_l3mdev_accept, to control this behaviour with it
being analgous to the existing tcp_l3mdev_accept, namely to allow a
process to have a VRF-global listen socket. Have this default to off
as this is the behaviour that users will expect, given that there is
no explicit mechanism to set unmodified VRF-unaware application into a
default VRF.

Signed-off-by: Robert Shearman &lt;rshearma@brocade.com&gt;
Acked-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Tested-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Packets arriving in a VRF currently are delivered to UDP sockets that
aren't bound to any interface. TCP defaults to not delivering packets
arriving in a VRF to unbound sockets. IP route lookup and socket
transmit both assume that unbound means using the default table and
UDP applications that haven't been changed to be aware of VRFs may not
function correctly in this case since they may not be able to handle
overlapping IP address ranges, or be able to send packets back to the
original sender if required.

So add a sysctl, udp_l3mdev_accept, to control this behaviour with it
being analgous to the existing tcp_l3mdev_accept, namely to allow a
process to have a VRF-global listen socket. Have this default to off
as this is the behaviour that users will expect, given that there is
no explicit mechanism to set unmodified VRF-unaware application into a
default VRF.

Signed-off-by: Robert Shearman &lt;rshearma@brocade.com&gt;
Acked-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Tested-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net: vrf: Address comments from last documentation update</title>
<updated>2016-07-14T01:04:17+00:00</updated>
<author>
<name>David Ahern</name>
<email>dsa@cumulusnetworks.com</email>
</author>
<published>2016-07-14T00:28:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=484f674bb51cdce21b507c0a79d56a9741e6eb9f'/>
<id>484f674bb51cdce21b507c0a79d56a9741e6eb9f</id>
<content type='text'>
Comments from Frank Kellerman on last doc update:
- extra whitespace in front of a neigh show command
- convert the brief link example to 'vrf red'

Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Comments from Frank Kellerman on last doc update:
- extra whitespace in front of a neigh show command
- convert the brief link example to 'vrf red'

Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net: vrf: Documentation update</title>
<updated>2016-07-13T18:36:27+00:00</updated>
<author>
<name>David Ahern</name>
<email>dsa@cumulusnetworks.com</email>
</author>
<published>2016-07-12T21:04:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6e07653765bdfc1762b874509001213860b609e4'/>
<id>6e07653765bdfc1762b874509001213860b609e4</id>
<content type='text'>
Update vrf documentation for changes made to 4.4 - 4.8 kernels
and iproute2 support for vrf keyword.

Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Update vrf documentation for changes made to 4.4 - 4.8 kernels
and iproute2 support for vrf keyword.

Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Documentation: networking: fix spelling mistakes</title>
<updated>2016-04-28T18:21:13+00:00</updated>
<author>
<name>Eric Engestrom</name>
<email>eric@engestrom.ch</email>
</author>
<published>2016-04-25T06:36:56+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=edb9a1b8942b32762b1179039debf2172ad9cc32'/>
<id>edb9a1b8942b32762b1179039debf2172ad9cc32</id>
<content type='text'>
Signed-off-by: Eric Engestrom &lt;eric@engestrom.ch&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Eric Engestrom &lt;eric@engestrom.ch&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net: vrf: Documentation update, ip commands</title>
<updated>2015-10-14T01:55:31+00:00</updated>
<author>
<name>David Ahern</name>
<email>dsa@cumulusnetworks.com</email>
</author>
<published>2015-10-12T20:54:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4b418bff3dae0c017126220df3e148ba8127e99a'/>
<id>4b418bff3dae0c017126220df3e148ba8127e99a</id>
<content type='text'>
Add ip commands with examples for creating VRF devics, enslaving interfaces
and dumping VRF-focused data (address, neighbors, routes).

Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add ip commands with examples for creating VRF devics, enslaving interfaces
and dumping VRF-focused data (address, neighbors, routes).

Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net: Add documentation for VRF device</title>
<updated>2015-09-17T23:06:43+00:00</updated>
<author>
<name>David Ahern</name>
<email>dsa@cumulusnetworks.com</email>
</author>
<published>2015-09-15T16:50:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=562d897d15a6e2bab3cc9b4c172286b612834fe8'/>
<id>562d897d15a6e2bab3cc9b4c172286b612834fe8</id>
<content type='text'>
Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
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