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Provides support for modifying L3/L4 Header parameters to support NAT. Sets the appropriate fields/bits in cfa_flow_alloc cmd. Sample cmd for offloading an IPv4 flow with SNAT: ovs-ofctl add-flow ovsbr0 "ip,nw_src=192.168.201.44 \ actions=mod_nw_src:203.31.220.144,output:p7p1" Replace 'nw_src' with 'nw_dst' in above cmd for DNAT with IPv4 Sample cmd for offloading an IPv4 flow with SNAPT: ovs-ofctl add-flow ovsbr0 "ip,nw_src=192.168.201.44 \ actions=mod_nw_src:203.31.220.144, mod_tp_src:6789,output:p7p1" Similar to DNAT, replace 'tp_src' with 'tp_dst' for offloading flow with DNAPT Sample cmd for offloading an IPv6 flow with SNAT: ovs-ofctl add-flow ovsbr0 "ipv6, ipv6_src=2001:5c0:9168::2/64 \ actions=load:0x1->NXM_NX_IPV6_SRC[0..63], \ load:0x20010db801920000->NXM_NX_IPV6_SRC[64..127],output:p7p1" Replace 'SRC' with DST' above for IPv6 DNAT Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.