Re: MAC Instead of Computer Name in Router Device List?
On May 23, 11:32 am, Dan dantear...@gmail.com wrote: At 8:25 AM -0700 5/23/2012, t...@io.com 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. In the Sharing system preferences, be sure you've set the machine name. The two problem machines have names like Eli's Computer or Diane's G4 MDD or some such. They've been set for years, because I use file sharing every so often. Hmmm. I can't remember, but I wonder if the apostrophes are in the names. That could be an issue. Then you'll need to get those machines off the network, and delete their entries in the router's dhcp table. That way when next the router sees the machines, they'll be registered under their proper names. There's an option on the router's DHCP table screen to reset the table or some such. It looks like it should remove everything that isn't currently connected -- and maybe remove and reassign everything that is. 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. The DHCP name box is simply a keyword used to get a specific assignment from the DHCP server. In some DHCP servers, it overrides the entry keyed by the MAC. Thank you. Good to know. It looked like the only thing that was remotely applicable, given the circumstances. 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. If the names were set properly - from the beginning - then the DHCP server must have glitched when it saw the machines originally. As mentioned above, all the machines already had File Sharing machine names when I configured and connected this router/DHCP server. Now that I'm at work and where I can test it, the only thing I can That first clause above should finish where I **can't** test it 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? Some do. Best to keep the name simple. dans-quicksilver for example. That way the name works properly with dns too. Thank you for the helpful information Dan. I will experiment tonight. I think I will first try shutting down the machines in question. Then remove their entries from the DHCP table. Then boot the machines back up. If that doesn't work, I'll try changing their names to something with no apostrophes. If that fails, then I'll change it to no spaces. I think that's a systematic test which should reveal the ultimate cause -- unless it fails to resolve the issue. :-) I also need to clean the gutters tonight, so if I'm too tired afterward for computer fun, it could be another day or two before I experiment... Completely off topic, I've found that tying a Mosquito Dunk http:// amzn.com/B0002568YA to the little cross bar in the gutter with a bit of kevlar string really seems to cut down on the mosquito population. One dunk for each independent section of gutter. Jeff Walther -- 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 g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: MAC Instead of Computer Name in Router Device List?
On May 23, 1:46 pm, Dan dantear...@gmail.com wrote: At 11:00 AM -0700 5/23/2012, Bruce Johnson wrote: This is good to know. Maybe I could get my Linksys router to show names instead of MAC addresses. It's quite useful, really. Most routers will propagate those names as part of their dDNS. No more remembering IPs! You can just ping dans-quicksilver etc. FWIW, here's the table from our Actiontec router:https://dl.dropbox.com/u/610326/Our%20DHCP%20Table.jpg Where your router uses Host Name for the heading of the first column, my router uses Device Name, but othewise basically the same as one would expect. If your router was doing what mine is, instead of dans-quicksilver, you'd have unknown_00:03:93:7d:fe:6e or something pretty close to that. Perhaps the colons replaced with underscores. I need to go home and experiment, but the thing that's bothering me at the moment, is that my poor memory remembers three boxes in the OSX DHCP panel or was that in the Sharing Panel. Anyway, there's a box with machine name that I've assigned for file sharing. Then there's a box with the sharing name, but all the spaces have been automagically converted to '-'s. And then there's that (formerly) empty DHCP name box. I would guess that the box with automatically modified name is the one that's supplied to the DHCP server, and that implies that the spaces are not the problem. But perhaps apostrophes are. Okay, enough thinking. I should leave this alone until I can experiment a bit more. Jeff Walther -- 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 g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: MAC Instead of Computer Name in Router Device List?
At 8:35 AM -0700 5/24/2012, t...@io.com wrote: On May 23, 11:32 am, Dan dantear...@gmail.com wrote: At 8:25 AM -0700 5/23/2012, t...@io.com 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. In the Sharing system preferences, be sure you've set the machine name. The two problem machines have names like Eli's Computer or Diane's G4 MDD or some such. They've been set for years, because I use file sharing every so often. Hmmm. I can't remember, but I wonder if the apostrophes are in the names. That could be an issue. Special characters don't propagate well. They were ok with AppleTalk, but not for dDNS. Stick with basic alphanumerics and dashes or underscores. - Dan. -- - Psychoceramic Emeritus; South Jersey, USA, Earth. -- 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 g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: MAC Instead of Computer Name in Router Device List?
On May 24, 2012, at 8:53 AM, Dan wrote:
Special characters don't propagate well. They were ok with AppleTalk, but
not for dDNS. Stick with basic alphanumerics and dashes or underscores.
dashes only.
The Internet standards (Request for Comments) for protocols mandate that
component hostname labels may contain only the ASCII letters 'a' through 'z'
(in a case-insensitive manner), the digits '0' through '9', and the hyphen
('-'). The original specification of hostnames in RFC 952, mandated that labels
could not start with a digit or with a hyphen, and must not end with a hyphen.
However, a subsequent specification (RFC 1123) permitted hostname labels to
start with digits. No other symbols, punctuation characters, or white space are
permitted.
Per Wikipedia's 'Hostname' entry.
--
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group
Institutions do not have opinions, merely customs
--
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Re: MAC Instead of Computer Name in Router Device List?
On May 24, 2012, at 8:35 AM, t...@io.com wrote: On May 23, 11:32 am, Dan dantear...@gmail.com wrote: At 8:25 AM -0700 5/23/2012, t...@io.com 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. In the Sharing system preferences, be sure you've set the machine name. The two problem machines have names like Eli's Computer or Diane's G4 MDD or some such. They've been set for years, because I use file sharing every so often. Hmmm. I can't remember, but I wonder if the apostrophes are in the names. That could be an issue. Very likely. Apostrophes are often a problem in this sort of thing. Sometimes you also get the paired apostrophes that curve around the enclosed text (so to speak) and they also cause problems. Also the spaces might be an issue (per Bruce's earlier post). Thank you for the helpful information Dan. I will experiment tonight. I think I will first try shutting down the machines in question. Then remove their entries from the DHCP table. Then boot the machines back up. If that doesn't work, I'll try changing their names to something with no apostrophes. If that fails, then I'll change it to no spaces. I'd start here. This shouldn't be a problem with the DHCP Client ID. I think that's a systematic test which should reveal the ultimate cause -- unless it fails to resolve the issue. :-) I also need to clean the gutters tonight, so if I'm too tired afterward for computer fun, it could be another day or two before I experiment... Completely off topic, I've found that tying a Mosquito Dunk http:// amzn.com/B0002568YA to the little cross bar in the gutter with a bit of kevlar string really seems to cut down on the mosquito population. One dunk for each independent section of gutter. I find living in California helps a lot with the mosquito population (we get them but they are pretty easy to control). -- 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 g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
