Multiple routing tables, jails, and setfib

A

astounding

Hi,

So I'm finally getting around to trying out setfib and running multiple routing tables. However, I noticed one behavior I need to avoid, bypass, or work around.

For example, say I have a machine with 2 network interfaces, re0 and re1, with re0 a part of the default FIB 0 and re1 a member of FIB 1:

Code: 
# ifconfig re0 inet 10.0.0.2/24
# route add default 10.0.0.1

Code: 
# ifconfig re1 inet 10.1.0.2/24 fib 1
# setfib 1 route add default 10.1.0.1

For reasons I don't care to discuss, I am looking for a way to COMPLETELY separate these two routing tables such that even a DIRECTLY connected network like 10.0.0.0/24 will NOT have a route with FIB 1 (and likewise 10.1.0.0/24 will NOT have a route in FIB 0).

Is there any way to do this? It appears that ifconfig always creates a local link route within ALL FIBs on the machine. Sure, I can attempt a hack like this:

Code: 
# setfib 0 route delete 10.1.0.0/24
# setfib 1 route delete 10.0.0.0/24

That doesn't quite work and results in odd behavior.

The goal is for this:
Code: 
# setfib 1 traceroute 10.0.0.1

...to have to traverse an EXTERNAL device or devices/network path even though the IP is on the same host. Yes, a little weird, but I require that behavior (i.e. no localhost routing between the FIBs unless I add it explicitly).

Ideas? Suggestions?

Thanks!

Aaron out.
 
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