Date: Fri, 15 Feb 2002 08:20:56 -0800 (PST) From: Vinod Namboodiri <geekvinod@yahoo.com> To: Jason Hunt <leth@primus.ca> Cc: freebsd-net@freebsd.org, freebsd-mobile@freebsd.org Subject: Re: MAC Layer of TCP/IP stack Message-ID: <20020215162056.49296.qmail@web21106.mail.yahoo.com> In-Reply-To: <Pine.BSF.4.40.0202141830390.55195-100000@lethargic.dyndns.org>
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Not actually.Its more to run QoS experiments and need to customize some medium access protocols like csma/ca e.t.c.Guess i cant get to the csma protocol from the freebsd tcp/ip stack source code. Vinod --- Jason Hunt <leth@primus.ca> wrote: > If you mean that you would like to change the MAC > address that the card > has programmed into it, then yes you can change it, > but not perminatly. > The MAC address is hard-coded into the card, and is > restored on a reboot > if you change it. You can configure the machine to > use a MAC address that > you specify by using the option I've pasted below. > > This is from the ifconfig(8) man page: > > lladdr addr > Set the link-level address on an interface. > This can be used to > e.g. set a new MAC address on an ethernet > interface, though the > mechanism used is not ethernet-specific. The > address addr is > specified as a series of colon-separated hex > digits. If the > interface is already up when this option is > used, it will be > briefly brought down and then brought back > up again in order to > insure that the receive filter in the > underlying ethernet hard- > ware is properly reprogrammed. > > > Hope this helps. > > > On Thu, 14 Feb 2002, Vinod Namboodiri wrote: > > > Hi there.I am about to embark on a research > project > > wherein some changes need to be made in the MAC > layer > > of the TCP/IP stack.We have a wireless testbed > running > > on FreeBSD.I had a few doubts.can i make the > changes > > from the TCP/IP stack source code of FreeBSD?I > dont > > know much about the source code of the stack.or > would > > i need to be modifying the firmware of the > wireless > > network card which probably has the mac layer > code? > > > > Could use some help. > > Vinod > > > > > > __________________________________________________ > > Do You Yahoo!? > > Send FREE Valentine eCards with Yahoo! Greetings! > > http://greetings.yahoo.com > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-mobile" in the body of > the message > > > > > > __________________________________________________ Do You Yahoo!? Got something to say? Say it better with Yahoo! Video Mail http://mail.yahoo.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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