MAC here probably refers to Media Access Control.  Every device on the web gets 
a Media Access Control number.  Its usually four sets of up to three numbers 
per set, separated by periods...

MAC as used here, has nothing to do with Macintosh.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

> In the list of devices connected to my router and assigned IP
> addresses, everything shows up as I would expect, except a G4 MDD
> (10.4.11) and an 800 MHz G4 ILamp (10.2.8).
> 
> For those two machines the router displays something like unknown_<MAC
> address> without the <> for the Device Name.
> 
> I tried entering the machine names into the optional DHCP name box
> (forgot exactly what it's called) in the System Prefs/Networking/
> Ethernet/DHCP window, but that had no effect, other than, when I
> clicked "Apply Now" it caused the computer to release its current IP
> and obtain a new one.
> 
> My old System 9.1 machine shows up in the router list under its
> machine  name, even.   It's just these two OSX Macs that don't.
> 
> Now that I'm at work and where I can test it, the only thing I can
> think of is that the two Macs in question have space characters in
> their machine names.  Do routers reject machine names if they have
> spaces in them, or is something else going on here?   If the latter,
> what?  Is there some way to get the machine name to show up under
> Device Name on the router, instead of the MAC address?
> 
> The router in question is one of AT&T's HGV3600 modem/router
> gateways.   I just switched to U-verse.

On May 23, 2012, at 11:25 AM, [email protected] wrote:

> In the list of devices connected to my router and assigned IP
> addresses, everything shows up as I would expect, except a G4 MDD
> (10.4.11) and an 800 MHz G4 ILamp (10.2.8).
> 
> For those two machines the router displays something like unknown_<MAC
> address> without the <> for the Device Name.
> 
> I tried entering the machine names into the optional DHCP name box
> (forgot exactly what it's called) in the System Prefs/Networking/
> Ethernet/DHCP window, but that had no effect, other than, when I
> clicked "Apply Now" it caused the computer to release its current IP
> and obtain a new one.
> 
> My old System 9.1 machine shows up in the router list under its
> machine  name, even.   It's just these two OSX Macs that don't.
> 
> Now that I'm at work and where I can test it, the only thing I can
> think of is that the two Macs in question have space characters in
> their machine names.  Do routers reject machine names if they have
> spaces in them, or is something else going on here?   If the latter,
> what?  Is there some way to get the machine name to show up under
> Device Name on the router, instead of the MAC address?
> 
> The router in question is one of AT&T's HGV3600 modem/router
> gateways.   I just switched to U-verse.
> 
> -- 
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> Macs.
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-- 
You received this message because you are a member of G-Group, a group for 
those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs.
The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette 
guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to [email protected]
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