Date: Wed, 18 Feb 2009 09:44:24 -0800 From: Julian Elischer <julian@elischer.org> To: Bruce Cran <bruce@cran.org.uk> Cc: freebsd-hackers@freebsd.org, xorquewasp@googlemail.com Subject: Re: Simulating bad network conditions Message-ID: <499C48F8.1080604@elischer.org> In-Reply-To: <20090218103903.5aee2d7d@tau.draftnet> References: <20090218083424.GA62198@logik.internal.network> <20090218114128.B73352@mp2.macomnet.net> <20090218085715.GA9821@logik.internal.network> <20090218103903.5aee2d7d@tau.draftnet>
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Bruce Cran wrote: > On Wed, 18 Feb 2009 08:57:15 +0000 > xorquewasp@googlemail.com wrote: > >> On 2009-02-18 11:42:00, Maxim Konovalov wrote: >>> ipfw(8) prob + dummynet(8). >>> >> Hi. Thanks for the quick response. >> >> Is there, by any chance, an equivalent for PF? I see there's 'ALTQ' >> but it looks to be poorly supported (unless I misunderstand). I have >> quite a complicated setup here with PF forwarding and jails and I'm >> not sure how well ipfw will play along. > > ALTQ can drop 20% of packets using something like: > > block in proto icmp probability 20% > > It seems ALTQ can't delay packets though, so you'd need to use dummynet > for that. > vimage it the tool for you it can REALLY simulate a lot of network setups.
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