Date: Wed, 16 Apr 2003 10:36:37 -0700 (PDT) From: John Polstra <jdp@polstra.com> To: mobile@freebsd.org Subject: Re: "broadcast ping" message Message-ID: <200304161736.h3GHabcu080661@strings.polstra.com> In-Reply-To: <Pine.GSO.4.53.0304152157070.20388@granville.cs.ubc.ca> References: <Pine.GSO.4.53.0304151757590.18417@granville.cs.ubc.ca> <Pine.GSO.4.53.0304152157070.20388@granville.cs.ubc.ca>
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In article <Pine.GSO.4.53.0304152157070.20388@granville.cs.ubc.ca>, Kan Cai <kcai@cs.ubc.ca> wrote: > > This is a really dumb question. When I say it doesn't work, I mean there > is no output on the screen as you do point-to-point ping normally. > > Actually it works, it won't show anything just because there is no > ack for broadcasting. Using tcpdump can easily notice this thing. To make a FreeBSD system respond to broadcast pings, you have to set the sysctl variable net.inet.icmp.bmcastecho to 1. John -- John Polstra John D. Polstra & Co., Inc. Seattle, Washington USA "Disappointment is a good sign of basic intelligence." -- Chögyam Trungpa
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