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Tom Herbert 858dbb208e ip link: Add support for remote checksum offload to IP tunnels
This patch adds support to remote checksum checksum offload
confinguration for IPIP, SIT, and GRE tunnels. This patch
adds a [no]encap-remcsum to ip link command which applicable
when configured tunnels that use GUE.

http://tools.ietf.org/html/draft-herbert-remotecsumoffload-00

Example:

ip link add name tun1 type gre remote 192.168.1.1 local 192.168.1.2 \
   ttl 225 encap fou encap-sport auto encap-dport 7777 encap-csum \
   encap-remcsum

This would create an GRE tunnel in GUE encapsulation where the source
port is automatically selected (based on hash of inner packet),
checksums in the encapsulating UDP header are enabled (needed.for
remote checksum offload), and remote checksum ffload is configured to
be used on the tunnel (affects TX side).

Signed-off-by: Tom Herbert <therbert@google.com>
2015-02-05 10:50:02 -08:00
bridge Use one func to print timestamp from nlmsg 2015-01-13 17:34:47 -08:00
doc fix spelling of Kuznetsov 2015-01-03 09:58:41 -08:00
etc/iproute2 rt_dsfield: fix Expedited Forwarding PHB 2014-12-03 18:50:59 -08:00
examples Fix FSF address in file headers 2013-12-06 15:05:07 -08:00
genl genl: fix a typo in help message of ctrl 2014-02-10 14:41:25 -08:00
include ip netns: Allow exec on each netns 2015-02-05 10:28:19 -08:00
ip ip link: Add support for remote checksum offload to IP tunnels 2015-02-05 10:50:02 -08:00
lib lib: Exec func on each netns 2015-02-05 10:28:19 -08:00
man ip netns: Delete all netns 2015-02-05 10:28:19 -08:00
misc ss: Unify inet sockets output 2015-02-05 10:16:25 -08:00
netem netem: fix installs of dist files 2010-07-31 19:31:04 -07:00
tc actions: Get vlan action to work in pipeline 2015-01-13 17:22:44 -08:00
testsuite tests: Add few 'ip link' related tests 2015-02-05 10:16:25 -08:00
.gitignore gitignore: Ignore 'doc' files generated at runtime 2014-10-29 22:26:15 -07:00
COPYING Update address of FSF in license 2008-03-08 13:31:03 -08:00
Makefile fix format warnings 2014-05-29 10:31:30 -07:00
README README: update mail address and download location 2013-01-18 09:54:58 -08:00
README.decnet Decnet documentation update 2005-06-13 18:47:56 +00:00
README.devel iproute2: fix minor typo in comments 2011-07-11 10:11:09 -07:00
README.distribution README cleanup's 2012-01-03 15:04:55 -08:00
README.iproute2+tc README cleanup's 2012-01-03 15:04:55 -08:00
README.lnstat Rename: misc/README.lnstat -> README.lnstat 2004-10-19 20:24:47 +00:00
configure configure: Add check for the doc tools 2014-11-30 09:50:25 -08:00

README

This is a set of utilities for Linux networking.

Information:
    http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2

Download:
    http://www.kernel.org/pub/linux/utils/net/iproute2/

Repository:
    git://git.kernel.org/pub/scm/linux/kernel/git/shemminger/iproute2.git

How to compile this.
--------------------
1. libdbm

arpd needs to have the db4 development libraries. For Debian
users this is the package with a name like libdb4.x-dev.
DBM_INCLUDE points to the directory with db_185.h which
is the include file used by arpd to get to the old format Berkeley
database routines.  Often this is in the db-devel package.

2. make

The makefile will automatically build a Config file which
contains whether or not ATM is available, etc.

3. To make documentation, cd to doc/ directory , then
   look at start of Makefile and set correct values for
   PAGESIZE=a4		, ie: a4 , letter ...	(string)
   PAGESPERPAGE=2	, ie: 1 , 2 ...		(numeric)
   and make there. It assumes, that latex, dvips and psnup
   are in your path.

4. This package includes matching sanitized kernel headers because
   the build environment may not have up to date versions. See Makefile
   if you have special requirements and need to point at different
   kernel include files.

Stephen Hemminger
stephen@networkplumber.org

Alexey Kuznetsov
kuznet@ms2.inr.ac.ru