Asymmetric routing with FreeBSD on Amazon EC2 within VPC

[Adrian Chadd]

Hi,

So the "freebsd clean" solution would be to create two listen sockets,
one per IP address, and and have each IP address / routing table in a
separate FIB, or separate vnet.

I don't know if anyone has set that up though. It would be nice to
teach some web servers and proxy serversabout FreeBSD FIBs.



-adrian


On 19 May 2015 at 12:22, Patrick Gibson <gibblertron at gmail.com> wrote:
> I'm wondering if anyone has managed to figure out a way to have an
> Amazon EC2 instance behind a VPC work with multiple public IP
> addresses? The issue is with asymmetric routing. It's been resolved in
> the Linux world
> (http://blog.bluemalkin.net/multiple-ips-and-enis-on-ec2-in-a-vpc/),
> but I can't seem to get it working under FreeBSD. Using the setfib
> command, I'm able to manually go out through either interface, but for
> incoming packets to a webserver that listens to both interfaces, no
> dice. :(
>
> Patrick
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