netdev - Re: [PATCHv4 net-next 16/16] sctp: enable udp tunneling socks

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Message-ID: <20201019221545.GD11030@localhost.localdomain>
Date:   Mon, 19 Oct 2020 19:15:45 -0300
From:   Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
To:     Xin Long <lucien.xin@...il.com>
Cc:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org,
        Neil Horman <nhorman@...driver.com>,
        Michael Tuexen <tuexen@...muenster.de>, davem@...emloft.net,
        gnault@...hat.com, pabeni@...hat.com,
        willemdebruijn.kernel@...il.com
Subject: Re: [PATCHv4 net-next 16/16] sctp: enable udp tunneling socks

On Mon, Oct 19, 2020 at 08:25:33PM +0800, Xin Long wrote:
> --- a/Documentation/networking/ip-sysctl.rst
> +++ b/Documentation/networking/ip-sysctl.rst
> @@ -2640,6 +2640,12 @@ addr_scope_policy - INTEGER
>  
>  	Default: 1
>  
> +udp_port - INTEGER

Need to be more verbose here, and also mention the RFC.

> +	The listening port for the local UDP tunneling sock.
        , shared by all applications in the same net namespace.
> +	UDP encapsulation will be disabled when it's set to 0.

	"Note, however, that setting just this is not enough to actually
	use it. ..."

> +
> +	Default: 9899
> +
>  encap_port - INTEGER
>  	The default remote UDP encapsalution port.
>  	When UDP tunneling is enabled, this global value is used to set

When is it enabled, which conditions are needed? Maybe it can be
explained only in the one above.