diff options
Diffstat (limited to 'src/plugins/cnat')
| -rw-r--r-- | src/plugins/cnat/cnat.rst | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/plugins/cnat/cnat.rst b/src/plugins/cnat/cnat.rst index 8781f405a23..cdb751416db 100644 --- a/src/plugins/cnat/cnat.rst +++ b/src/plugins/cnat/cnat.rst @@ -9,7 +9,7 @@ Overview ________ This plugin covers specific NAT use-cases that come mostly -from the container networking world. On the contraty of the +from the container networking world. On the contrary of the NAT concepts used for e.g. a home gateway, there is no notion of 'outside' and 'inside'. We handle Virtual (or Real) IPs and translations of the packets destined to them @@ -33,9 +33,9 @@ that will store the packet rewrite to do and the one to undo until the flow is reset or a timeout is reached A ``session`` is a fully resolved 9-tuple of ``src_ip, src_port, dest_ip, dest_port, proto`` -to match incoming packets, and their new attributes ``new_src_ip, new_src_port, new_dest_ip, new_dest_port``. It allows for ``backend`` stickyness and a fast-path for established connections. +to match incoming packets, and their new attributes ``new_src_ip, new_src_port, new_dest_ip, new_dest_port``. It allows for ``backend`` stickiness and a fast-path for established connections. -These ``sessions`` expire after 30s for regular ``sessions`` and 1h for estabished +These ``sessions`` expire after 30s for regular ``sessions`` and 1h for established TCP connections. These can be changed in vpp's configuration file .. code-block:: console @@ -64,7 +64,7 @@ assigned to an interface If ``30.0.0.2`` is the address of an interface, we can use the following -to do the same translation, and additionnaly change the source. +to do the same translation, and additionally change the source. address with ``1.2.3.4`` .. code-block:: console @@ -82,10 +82,10 @@ To show existing translations and sessions you can use SourceNATing outgoing traffic ----------------------------- -A independant part of the plugin allows changing the source address +A independent part of the plugin allows changing the source address of outgoing traffic on a per-interface basis. -In the following example, all traffic comming from ``tap0`` and NOT +In the following example, all traffic coming from ``tap0`` and NOT going to ``20.0.0.0/24`` will be source NAT-ed with ``30.0.0.1``. On the way back the translation will be undone. @@ -133,7 +133,7 @@ and call a NAT node back that will perform the translation. Known limitations _________________ -This plugin is still under developpment, it lacks the following features : +This plugin is still under development, it lacks the following features : * Load balancing doesn't support parametric probabilities * VRFs aren't supported. All rules apply to fib table 0 only * Programmatic session handling (deletion, lifetime updates) aren't supported |