netlink support question for RFC 5549

[Arvin Gan]

Hi ,
   Yes, Linux kernel does not supported on by now, but we found a kernel patch to support RFC 5549, we are trying to support this case.

http://lists.openwall.net/netdev/2015/03/26/142

Thanks
Arvin

-----Original Message-----
From: Ondrej Zajicek <santiago at crfreenet.org> 
Sent: Wednesday, April 25, 2018 8:45 PM
To: Arvin Gan <AGan at advaoptical.com>
Cc: bird-users at network.cz
Subject: Re: netlink support question for RFC 5549

On Tue, Apr 24, 2018 at 10:38:03AM +0000, Arvin Gan wrote:
> Hi All,
>
>      I notice that BGP can support RFC 5549  using configuration 
> "ext_next_hop", bird can sync with kernel table using netlink assuming 
> kernel support route with IPV4 DIP and IPV6 next hop.
> ...
> that mean if bird received IPV4 NLRI  with IPV6 next hop, the gateway 
> is parsed with IPV4 address since address family is IPV4 unicast on 
> this case, does  my understand correct ? If yes, this parse process 
> have a bug ?

Hi

BIRD does not support mixed next hops on netlink. It would be simple to implement that, but i think that Linux kernel does not (yet) support such routes anyway. At least i failed to setup such routes using 'ip' tool.

Could you (or anybody) get such routes to work in Linux?

--
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."