Date: Sun, 25 Oct 2015 17:47:07 +0000 From: James Lodge <James@Lodge.me.uk> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Jail - PF - NAT - Network Performance Message-ID: <VI1PR06MB10378E0DC73518F6A4571531F9240@VI1PR06MB1037.eurprd06.prod.outlook.com> In-Reply-To: <DF61454E-408E-432F-8822-39353632CA90@FreeBSD.org> References: <VI1PR06MB1037187D07A9C500B3E4E791F9240@VI1PR06MB1037.eurprd06.prod.outlook.com>, <DF61454E-408E-432F-8822-39353632CA90@FreeBSD.org>
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> On 25 Oct 2015, at 17:46, James Lodge <James@Lodge.me.uk> wrote: > I currently have a FreeBSD 10.1 host running on Digital Ocean. I have mul= tiple jails and I'm not using vimage. > > > I'm using PF on the host to NAT traffic from said jails and all is workin= g as expected. I have a jail running OpenVPN and clients can connect and tr= affic is routed to the Internet down the tunnel via PF/NAT. The issue I'm s= eeing is download speeds to the client from the Internet on the external si= de on PF. Upload always seem reasonable, but download is always woeful. I'm= using a Windows machine as the client if that make any odds. > >Yeah, there=92s an issue with checksums and pf/Xen. >Disabling TSO should work for you (sudo sysctl net.inet.tcp.tso=3D0), and = the problem should be completely fixed in the >next release (10.3 or 11.0) > >Regards, >Kristof Thanks Kristof for the quick reply, I was hoping it would be that simple, but Digital Ocean use KVM (from what = I know) as their hypervisor so disabling TSO and LRO seems to have no notic= ed increase in performance.=20 Regards James=
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