[Xorp-users] Question on supporting multiple routing tables [PATCH]

[Ben Greear]

Ben Greear wrote:
> I attempted to change my patch per your (off-list) comments,
> basically to only bind when non-multicast and then immediately
> un-bind.  Unfortunately, it appears that the Linux kernel logic
> to un-bind does not work.  I sent a mail to the kernel mailing
> list, so hopefully it can be fixed sometime soon (or I can be
> properly beat around the head if it's my mistake.)

Well, at least part of the problem was self inflicted, as usual.
I'm still not certain the kernel handles un-binds correctly, but
as far as I can tell, that doesn't matter for Xorp since we always
bind on uni-cast, and multi-cast doesn't care.

I have tested the attached patch, and it seems to work as planned.

Please review and apply if it meets your specifications.  There is
a small change to the original logic:  It used to return on some
error cases and not run the loopback multicast setup at the bottom
of the method.  With the new patch, it will always run the loopback multicast
test, as well as the un-bindtodevice logic.

If you want changes to the patch, let me know.

Thanks,
Ben

-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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