Date: Mon, 01 Jan 2001 08:51:40 -0500 From: Mike Tancsa <mike@sentex.net> To: Roman Shterenzon <roman@harmonic.co.il> Cc: stable@FreeBSD.ORG Subject: Re: slow NAT ? Message-ID: <4.2.2.20010101084935.01e47880@marble.sentex.net> In-Reply-To: <Pine.LNX.4.10.10101011224320.21348-100000@shark.harmonic.c o.il> References: <4.2.2.20001231124602.01d21878@marble.sentex.net>
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At 12:25 PM 1/1/2001 +0200, Roman Shterenzon wrote:
>On Sun, 31 Dec 2000, Mike Tancsa wrote:
>
> >
> > I upgraded my home firewall today to sources as of last night and noticed
> > that traffic via NAT is rather slow. For example, an ftp from a machine
> > being nat'd I guess about 300Kbps. From the FreeBSD box, I get about 1Mb
> > on my DSL connection. If I use squid or a proper proxy, its not an
> > issue. This is both with the built in NAT on PPP and NATD by itself. Any
> > ideas as to how to track this down ?
> > 4.2-STABLE FreeBSD 4.2-STABLE #0: Sat Dec 30 09:37:21 EST 2000
> > Its only a CPU: Pentium/P55C (167.05-MHz 586-class CPU) with 96M of RAM.
>
>Was it that slow before the upgrade?
>As a workaround you can use ipnat which performs NAT in kernel-space
>rather than in user-space (as libalias does).
It was somewhat slower, but not this bad. However, I dont have any
benchmarks from before to measure the difference. I will try IPNAT to see
if that helps at all.
Thanks,
---Mike
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Network Administration, mike@sentex.net
Sentex Communications www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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