[Bug 225792] ECMP is broken since tryforward()

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225792

            Bug ID: 225792
           Summary: ECMP is broken since tryforward()
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: olivier at freebsd.org

For the record: As mentioned into the mailing-list [1], adding "options
RADIX_MPATH" doesn't allow any more to use ECMP.
The new ip_tryforward (like the previous fastforward) didn't support ECMP: a
FreeBSD router sticks to its first route entry and never try the second entry.

[1] https://lists.freebsd.org/pipermail/freebsd-net/2017-February/047203.html

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