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docs: update cnat docs to current vpp version

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The documentation for the cnat plugin is highly outdated specially on
the snat section.

Type: docs

Signed-off-by: Miguel Borges de Freitas <miguel-r-freitas@alticelabs.com>
Change-Id: I30b0c6295d3c812b636374753af3c37f29b0cc53
This commit is contained in:
Miguel Borges de Freitas
2022-10-19 23:21:20 +01:00
committed by Dave Wallace
parent a57549ad22
commit 938bff8084
1 changed files with 13 additions and 5 deletions
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18
src/plugins/cnat/cnat.rst
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@ -75,8 +75,8 @@ To show existing translations and sessions you can use
.. code-block:: console
cnat show session verbose
cant show translation
show cnat session verbose
show cnat translation
SourceNATing outgoing traffic
@ -94,10 +94,18 @@ address assigned to an interface)
.. code-block:: console
cnat snat with 30.0.0.1
cnat snat exclude 20.0.0.0/24
set cnat snat-policy addr 30.0.0.1
set cnat snat-policy if-pfx
set cnat snat-policy if table include-v4 tap0
set cnat snat-policy prefix 20.0.0.0/24
set interface feature tap0 cnat-snat-ip4 arc ip4-unicast
To show the enforced snat policies:
.. code-block:: console
show cnat snat-policy
Other parameters
----------------
@ -105,7 +113,7 @@ In vpp's startup file, you can also configure the bihash sizes for
* the translation bihash ``(proto, port) -> translation``
* the session bihash ``src_ip, src_port, dest_ip, dest_port, proto -> new_src_ip, new_src_port, new_dest_ip, new_dest_port``
* the snat bihash for searching ``snat exclude`` prefixes
* the snat bihash for searching ``snat-policy`` excluded prefixes
.. code-block:: console