Date: Fri, 21 Oct 2011 20:52:51 -0400 From: Mike Tancsa <mike@sentex.net> To: Steven Hartland <killing@multiplay.co.uk> Cc: freebsd-net@freebsd.org Subject: Re: very strange arp problem after ip move - icmp works udp doesn't Message-ID: <4EA213E3.4040406@sentex.net> In-Reply-To: <4D86495397B9404D80C693302B6438F6@multiplay.co.uk> References: <02FFC9CF360C4E2F81B00B653DE1584E@multiplay.co.uk> <B143A8975061C446AD5E29742C53172315C5C1@PWSVL-EXCMBX-01.internal.cacheflow.com>, <B92A9B07196A4885B4C162FBD91E91C0@multiplay.co.uk> <78997A42-95E7-4DF4-890C-BBDFE1CE4B03@bluecoat.com> <4D86495397B9404D80C693302B6438F6@multiplay.co.uk>
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On 10/21/2011 8:41 PM, Steven Hartland wrote: > > Seems like the flow table is pretty broken then with respect > changing arp entries, at least in 8.2-RELEASE :( Its been removed from the default kernel back in April Author: bz Date: Sat Apr 9 12:04:35 2011 New Revision: 220486 URL: http://svn.freebsd.org/changeset/base/220486 Log: MFC r219775: For now remove options FLOWTABLE from the remaining GENERIC kernel configurations and make it opt-in for those who want it. LINT will still build it. While it may be a perfect win in some scenarios, it still troubles users (see PRs) in general cases. In addition we are still allocating resources even if disabled by sysctl and still leak arp/nd6 entries in case of interface destruction. Discussed with: qingli (2010-11-24, just never executed) Discussed with: juli (OCTEON1) PR: kern/148018, kern/155604, kern/144917, kern/146792 ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/
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