Date: Wed, 10 Feb 2016 19:59:59 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 207087] kernel: r295285 in 10.2-STABLE breaks OpenVPN functionality Message-ID: <bug-207087-2472-E8gxxbhhHP@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-207087-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-207087-2472@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207087 mgrooms@shrew.net changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mgrooms@shrew.net --- Comment #3 from mgrooms@shrew.net --- Recently I noticed that after upgrading two separate pairs of firewalls to 10.2-RELEASE that my ISAKMP deamons stopped negotiating SAs with peers. I j= ust haven't gotten around to submitting a bug report yet. It only seems to happ= en when large UDP packets get fragmented due to large payloads ( ie. certifica= te info is transmitted during late in phase1 negotiation ). This may be unique= to the bge driver or related hardware as the isakmp daemon started working aga= in on both sets of firewalls once I disabled hardware checksum offload ( ifcon= fig bgeX -rxcsum ). This work-around wasn't required until the upgrade to 10.2-RELEASE, but I can't say if it was at a specific patch level. I can say that one set of firewalls were upgraded from 9.2-RELEASE-p?? and the other = set were upgraded from a patched 10.0-RELEASE, so I assume the commit that broke UDP re-assembly was committed sometime between 10.0-RELEASE and 10.2-RELEASE-p11. Sorry I can't be more specific. BTW, this isn't an attempt to hijack your problem report. I just thought th= at the issue you describe ( openvpn w/ UDP ) may be related to mine so I thoug= ht it would be worth mentioning. Have you tried disabling hw checksum offload = on your public facing network device? If that improves the situation, it's qui= te possible that we are being bit by the same issue. --=20 You are receiving this mail because: You are on the CC list for the bug.=
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