netdev - Re: [PATCH net-next] ipv6: Add sysctl for RA default route table number

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Date:   Fri, 25 Jun 2021 22:47:41 -0600
From:   David Ahern <dsahern@...il.com>
To:     antony.antony@...unet.com, "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>
Cc:     netdev@...r.kernel.org,
        Christian Perle <christian.perle@...unet.com>
Subject: Re: [PATCH net-next] ipv6: Add sysctl for RA default route table
 number

On 6/25/21 1:04 AM, Antony Antony wrote:
> From: Christian Perle <christian.perle@...unet.com>
> 
> Default routes learned from router advertisements(RA) are always placed
> in main routing table. For policy based routing setups one may
> want a different table for default routes. This commit adds a sysctl
> to make table number for RA default routes configurable.
> 
> examples:
> sysctl net.ipv6.route.defrtr_table
> sysctl -w net.ipv6.route.defrtr_table=42
> ip -6 route show table 42

How are the routing tables managed? If the netdevs are connected to a
VRF this just works.