Date: Mon, 19 Sep 2005 08:57:52 +0200 From: Peter van Dijk <peter@dataloss.nl> To: freebsd-net@freebsd.org Subject: Re: ARP behavior in FreeBSD vs Linux Message-ID: <20050919065752.GD17888@dataloss.nl> In-Reply-To: <20050919064927.GB17888@dataloss.nl> References: <20050919.004531.92589257.mshindo@mshindo.net> <432D9249.9090202@mac.com> <432DA0AC.8010802@thedarkside.nl> <432E23A2.8000801@in-addr.com> <20050919064927.GB17888@dataloss.nl>
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On Mon, Sep 19, 2005 at 08:49:28AM +0200, Peter van Dijk wrote: > On FreeBSD, we solve this issue by assigning the IPs to lo0. For > Linux, this approach works equally well and is what the Linux Virtual > Server documentation recommends. Oops.. the docs I read were for Linux 2.0. The docs for 2.2 recommend flipping some 'hidden' flag in /proc/sys/net/ipv4; this suggests that Linux responds to ARP even for lo0 by default. So indeed, Linux requires -extra- care to get a DR loadbalanced situation right.. Cheers, Peter -- peter@dataloss.nl | ~ tonight tonight, what is this potion http://blog.dataloss.nl/ | ~ that makes a fool of me UnderNet/#clue | Wayfinder, fr-025 soundtrack
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