Date: Mon, 1 Jan 2007 20:45:12 -0500 (EST) From: Ensel Sharon <user@dhp.com> To: "Tobias P. Santos" <tobias@netconsultoria.com.br> Cc: freebsd-ipfw@freebsd.org Subject: Re: lowercase 'm' with dummynet rate limiting ? Known issue ? Message-ID: <Pine.LNX.4.21.0701012041140.21120-100000@shell.dhp.com> In-Reply-To: <4599B00B.8000307@netconsultoria.com.br>
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On Mon, 1 Jan 2007, Tobias P. Santos wrote: > Ensel Sharon escreveu: > [...] > > ipfw pipe 1 config bw 10mbit/s > > > > Oops. After about 5 minutes, the prompt returns, so it's not like a > > normal accidental-ipfw-lockout (when those happen you never see the prompt > > again). But it might as well be, because that was the last response I got > > out of that system - can't ping it, can't connect, and both ssh sessions > > timed out trying to get a prompt back. > > > > So what did I do wrong ? I see that the man page calls for a uppercase M > > (10Mbits/s) whereas I typed a lowercase 'm'. Was that the problem ? Or > > was I supposed to remove the first pipe completely before reissuing the > > 'ipfw pipe 1 config' command again ? > > > > Any idea why that command took it off line ? > > Similar issue: > http://lists.freebsd.org/pipermail/freebsd-net/2006-November/012566.html Ahh... so unless I am missing something, it would appear that when you put a lowercase-m in place, it is just skipped, and: ipfw pipe 1 config bw 10mbit/s becomes: ipfw pipe 1 config bw 10bit/s Does that look like an accurate interpretation of what is happening ? So here's a follow-up question: I now have a (remote) system that is now set to 10bit/s rate limiting ... now that is awfully slow, but are there any conceivable tcp/ip settings that I could apply on a local system here that would allow me to ssh into it ? As it stands now, I cannot ssh into it - the session times out. Any ideas ? All I need to do is login and "ipfw delete ..." :)
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