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From: doug@eng.auburn.edu (Doug Hughes)
Subject: Re: Interface MAC address SunOS 4.1.3
Message-ID: <DoC1x4.A7x@mail.auburn.edu>
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References: <4ia1rs$1j1@sol.sun.csd.unb.ca> <p4trqukut.fsf@lpbcsun.lpbc.jussieu.fr>
Date: Fri, 15 Mar 1996 23:43:52 GMT
Lines: 31
Xref: euryale.cc.adfa.oz.au comp.unix.questions:78864 comp.unix.bsd:16772 comp.unix.internals:9900 comp.sys.sun.apps:12797 alt.unix.wizards:3325 alt.sys.sun:10109
In article <p4trqukut.fsf@lpbcsun.lpbc.jussieu.fr>, slt@lpbcsun.lpbc.jussieu.fr (Stephane Tsacas) writes:
|> I've got it... :
|> adb -k /vmunix /dev/mem
|> physmem 3fb1
|> le_softc/X
|> _le_softc:
|> _le_softc: ff005000
|> 0xff005000+0t112/X
|> 0xff005070: 8002071
|> 0xff005074: d5010000
|>
|> First component of struct le_softc is a struct arpcom which starts by:
|> struct arpcom {
|> struct ifnet ac_if; /* network-visible interface */
|> struct ether_addr ac_enaddr; /* ethernet hardware address */
|> struct in_addr ac_ipaddr; /* copy of ip address- XXX */
|> ...
|>
|> and sizeof(struct ifnet) = 112
|>
|> Don't ask me if the machine has more than one interface...
Luckily, on Suns, there is only 1 MAC for all ethernets. The mac is
stored in nvram on the motherboard, so you don't have to worry about this.
(or unluckily, depending on your point of view)
--
____________________________________________________________________________
Doug Hughes Engineering Network Services
System/Net Admin Auburn University
doug@eng.auburn.edu