[OE-core] [PATCH] systemd-networkd: cherry picking route handling patch

[Otavio Salvador]

On Thu, Jan 8, 2015 at 6:43 AM, Maciej Borzecki
<maciej.borzecki at open-rnd.pl> wrote:
> There is a problem in systemd-networkd version used in OE-core (216 as
> of now) that prevents a successful communication in a configuration
> that uses a static or IPv4 LL address alongside a dynamically obtained
> one. The setup is rather not uncommon as is makes sense to always have
> a static well known address that a technician or a support engineer
> can access while in the field.
>
> The current code in systed-networkd uses a clever trick to add a

typo: systemd-networkd

> static route to the gateway, to workaround a misconfigured DHCP server
> that would assign an address from network pool that the gateway is not
> a part of. The trick was missing a source IP address specification in
> the static route, thus normally the first assigned IP address would be
> used for outgoing IP packets. In this particular case the address
> would the static one, hence the packet would most probably be dropped
> by the router. Also, it is quite common in smaller networks that the
> DHCP server, gateway router and even a DNS server are colocated. In

collocated?

> these setups the current code will effectively render any
> communication to or past the router impossible.

-- 
Otavio Salvador                             O.S. Systems
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