[Bug 200379] SCTP stack is not FIB aware

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Fri May 22 01:34:33 UTC 2015


            Bug ID: 200379
           Summary: SCTP stack is not FIB aware
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: rodrigc at FreeBSD.org

If I use a system with multiple routing FIB's, I cannot send SCTP traffic
to an address which uses an alternate FIB.

To reproduce:

1.  Put the following in /boot/loader.conf to create 5 FIBs


2.  Reboot

3.  Create a VLAN on an alternate FIB:

    For instance, if I have em0:

   ifconfig em0.3275 create name craig0 fib 2
   ifconfig craig0 inet6 ifdisabled fib 2
   ifconfig ctrleth0 inet up fib 2
   route add -interface lo0 -fib 2

4.  Run the server program, which binds to address and
    uses fib 2:

   ./server 2

5. Perform similar steps to 3 on a separate machine or VM and use as 
   the address.
   Run the client program which binds to address, sends
   to address, and uses fib 2:

   ./client 2

The data does not get sent from client to server.
If I use addresses which are not associated with an alternate FIB then
the data gets sent from the client to the server.

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