netdev - Re: [PATCH] net-icmp: make icmp{,v6} (ping) sockets available to all by default

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Message-ID: <682963e4-7434-c836-6874-55cc7f83ec31@gmail.com>
Date:   Sat, 9 May 2020 15:09:47 -0600
From:   David Ahern <dsahern@...il.com>
To:     Ido Schimmel <idosch@...sch.org>,
        Maciej Żenczykowski <zenczykowski@...il.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Linux Network Development Mailing List 
        <netdev@...r.kernel.org>
Subject: Re: [PATCH] net-icmp: make icmp{,v6} (ping) sockets available to all
 by default

On 5/9/20 1:32 PM, Ido Schimmel wrote:
> On Sat, May 09, 2020 at 12:17:47PM -0700, Maciej Żenczykowski wrote:
>> Argh.  I've never understood the faintest thing about VRF's.
> 
> :)
> 
> There are many resources that David created over the years. For example:
> 
> https://www.kernel.org/doc/Documentation/networking/vrf.txt
> https://netdevconf.info/1.1/proceedings/slides/ahern-vrf-tutorial.pdf
> https://netdevconf.info/1.2/session.html?david-ahern-talk

best one is from OSS N.A. 2017:
    http://schd.ws/hosted_files/ossna2017/fe/vrf-tutorial-oss.pdf

Maciej: Basically, VRF narrows the scope to an L3 domain - devices
enslaved to the VRF device, their addresses and FIB entries in the VRF
table.