km@mathcs.emory.edu (Ken Mandelberg) (08/30/90)
Is it possible to change the ethernet address of a Mac on ethertalk?
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Ken Mandelberg | km@mathcs.emory.edu PREFERRED
Emory University | {rutgers,gatech}!emory!km UUCP
Dept of Math and CS | km@emory.bitnet NON-DOMAIN BITNET
Atlanta, GA 30322 | Phone: (404) 727-7963ts@cup.portal.com (Tim W Smith) (09/02/90)
Yes. Look for a resource of type 'eadr' in the System file. The ID will be zero if you are on a Mac without slots, or the slot number of the ethernet card if your Mac has slots (Note: the SE/30 "thinks" it has a NuBus as far as driver software goes). This resource contains the ethernet address. Change with ResEdit and reboot, and you should be all set. Tim Smith
emmayche@dhw68k.cts.com (Mark Hartman) (09/08/90)
In Article <1990Aug29.221353@mathcs.emory.edu>, km@mathcs.emory.edu (Ken Mandelberg) writes: >Is it possible to change the ethernet address of a Mac on ethertalk? Sure. You just have to change your Ethernet board. :-) Seriously, though - not really. Each manufacturer is issued a range of Ethernet addresses for their products, and this address is supposed to be irrevocably built into the given product. Thus, it's difficult if not impossible to change. Why would you want to? -- ------------ Mark Hartman uucp: ...{spsd,zardoz,felix}!dhw68k!emmayche Internet:emmayche@dhw68k.cts.com CompuServe: >internet:emmayche@dhw68k.cts.com Applelink: N1083
ts@cup.portal.com (Tim W Smith) (09/09/90)
<Seriously, though - not really. Each manufacturer is issued a range of <Ethernet addresses for their products, and this address is supposed to <be irrevocably built into the given product. Thus, it's difficult if <not impossible to change. < <Why would you want to? One reason you would want to change the address is if you are running some sort of protocol that encodes information in the address itself. DECnet seems to do this. If your machine is DECNet node N, then the ethernet address that should be used for that node is some function of N. The DECNet software I've seen for the Mac lets you chose the DECNet node number, and then wants to set the ethernet address. As I mentioned in an earlier posting, you can set the address simply be changing the 'eadr' resource in the System file. Tim Smith