Three scenarios come to mind:

1) different routing for (some) VMs or Jails from the host (host uses one
internet connection, jail uses another)
2) ditto, but for unjailed processes or users
3) different routing for (certain) forwardings

I have implemented 3) without multiple routing tables, just using pf, in
OpenBSD[0], but have not yet checked if this is possible with Dragonfly pf.
I failed at 1) once due to the lack of multiple routing tables but did not
know the pf way at the time.

/Matthias

[0] http://rampke.de/posts/ipv6-openvpn/

On Fri, Dec 12, 2014, 02:33 bycn82 <[email protected]> wrote:

* In what kind of scenario you are going to use the "multiple routing
table" (FIB in FreeBSD)? if you are familiar with it. *

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