Date: Thu, 20 Sep 2007 17:31:01 +0200 From: "Christophe M." <freebsd-pf@lessyv.com> To: freebsd-pf@freebsd.org Subject: Re: ifconfig carpdev Message-ID: <46F29235.7010706@lessyv.com>
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On Wednesday 19 September 2007, Max Laier wrote: > On Saturday 15 September 2007, Max Laier wrote: > > On Saturday 15 September 2007, Ingo Flaschberger wrote: > > > Ingo Flaschberger wrote: > > > > I have implemented at FreeBSD 6.2-STABLE. > > > > http://www.nabble.com/file/p12686194/carpdev.diff carpdev.diff > > > > Is a working solution, but not 100% failsave. > > > > See fixme. > > > > > > argl.. need some more tweaks. > > > > > > carp adds only a hostroute, and no network. > > > fixed that it add a network, but now kernels cries to receive the arp > > > at the parent interface and not at the carp interface... > > > > There is a lot more to this. Please hold your breath just a few more > > days and I'll have a working sollution as promised. Also, the proposed > > ioctl change is not the preferred way of doing things. If you pass in > > an interface index, there is no way of making sure that the interface > > didn't change underneath you - that's why we rather pass the whole > > string and do the resolution in the kernel. > > So here you go ... this is the ***ALPHA*** version of carpdev support. > Note that there are *a lot* of raw edges, untested areas and missing > features still, but "it's working"[tm]. > > For the moment that means the IPv4 carpdev case is working. i.e. > configuring a carp on an otherwise unused interface: > > ifconfig carp create > ifconfig carp0 carpdev rl0 vhid 1 pass foo 10.0.0.1 > ifconfig rl0 up > > This patch is FYI, not something I'd recommend to use or even test. I'll > do cleanup, testing and polishing over the coming days and let you know > when it's in testable shape. > > This work is generously sponsored by pil.dk. Hello ! I wanna add CARP IP balancing support on FreeBSD. My work is based on the OpenBSD ip_carp.c diff of 03/18/2007, when mpf added IP balancing support. I already succesfully patch my freebsd to support carpdev, but mostly like Ingo F. . Mine is just able to show iface xname under ifconfig, forcing it doesn't work, like you said above. Goog think is carp_input (not the old one renamed as carp_proto_input according to OpenBSD) , because my results shown that multicast data packets (not the CARP advs, the real packets) never appear in ether_input on every other servers. Several misunderstanding about the input process let me think to add a right carp_input (who do an fresh ether_input) but it doesn't work with my code ;) Packet just appears on one CARP interface, and never on others servers/CARP ifaces. I am going to test your patch, thanks for it ! Is there someone who is working on IP balancing ? I'll reply here for any additional information. Bye list ! -- Christophe Malinge contact<at>lessyv.com SysAdm padawan / Developer CCC - 'C' Comme Cirque president - jonglez les lundi @ EPiTA
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