Generic

ID #1150

Why do I have to reset the modem and what's this story about MAC addresses ?

A MAC (Media Access Control) Address is a unique identifier. You can have 10 of the same NICs, but each one has it's own MAC. They're hard coded into the firmware when they're made.

If you unplugged your router from your Cable modem and plugged a PC directly into it, you might have to reset the modem.
Same holds true if you had a PC directly connected to your modem and then plugged in your router, you might have to reset the modem. Your ISP sees that MAC address of the device that's connected to the modem and keeps it in a database. If you unplugged one device and plugged in a different one, it now sees a different MAC and doesn't know what to do. When you reset your modem, it releases that MAC address and then waits for another when the modem comes back on.
Kinda like release/renew an IP address, 'cept it's going the other way.

If you look in your router's config screen right now, you might see the MAC address that it is showing to your ISP. If you disconnected your router, plugged a PC into it directly and reset the modem, your ISP would then see a different MAC. You can check that by doing 'ipconfig/all' from a command prompt. You will see someting called the 'Physical Address', that's the MAC address of the device and what your ISP sees.
When you have other PC's behind your router/firewall, all your ISP sees is the MAC address of the device connected to your modem, nothing else. The router takes care of that after it goes through it.

Troubleshooting :
- IMPORTANT : That works for cable access.
- Try to connect a computer right on your cablemodem and see if your ISP sees your new MAC adress. When so, just put the NIC that you use right now in your freesco box and you don't have to wurry about MAC adresses at all. Just make sure you put it in the right pci slot. The one that freesco sees as eth0. You might have to switch your NIC's and cables around to get it going.
- It also helps to write down the IP, DNS and gateway numbers from that NIC. You have to fill them in on eth0.

Last update: 2004-12-08 00:35
Author: Mathieu CATTIN
Revision: 1.0

Print this record Print this record
Send to a friend Send to a friend
Show this as PDF file Show this as PDF file
Export as XML-File Export as XML-File

Please rate this entry:

Average rating: 0 from 5 (0 Votes )

completely useless 1 2 3 4 5 most valuable

You can comment on this entry

Comment of Microsoft Office 2010 (2011-04-28 03:34:16):
ADD Microsoft Office adults' main impairments Microsoft Office 2007 include organization. pay more attention to detail, Office 2010 and the ability to Office 2007 finish tasks. Unluckily, there are a lot of technologies to support these outlook 2010 symptoms. Keep in mind: just ms office 2010 as a diabetic person needs insulin office 2010 home to thrive, be competent with assistive technologies Microsoft Office 2010 free is one of the necessary parts microsoft word of life for people with ADD if you feel afraid by download microsoft office 2010 the demands of learning micro office 2010 a new technology. it is found in the past of Office applications a design scheme. It calls the ribbon ms office 2007. One is called Groove office 2010 professional, a peer-to-peer collaboration tool, it is serviced in the Office 2010 key high-end Ultimate. If you're an adult with ADD, you download office 2010 should know MS office 2010 download the concept of having microsoft office 2007 home your addresses and appointments Microsoft Office 2010 download scattered all office 2007 key over well. You are able to office professional 2010 manage by organizing piles, but that doesn't last. I had some outlook 2010 key Franklin Planners at one time, they are all Office 2010 free in different places, everyone prone to getting lost. I used Microsoft Office 2010 key to use inspirational quotations or beautiful art on the cover to collect address books, everyone with its own separate Office 2010 download, overlapping collection of contact Microsoft outlook 2010 information. However Microsoft Office 2010, note-taking program one note that was just for a standalone product which can MS office 2010 key be found in the office 2010 microsoft Home and now Microsoft outlook, Ultimate, and Enterprise editions.

Comment of dsad (2011-06-13 09:04:56):
As for the petite bride, an A Line Wedding Dresses could be best, simply because this kind of dress may possibly lengthen your body and make you look slim. In this sense, you must refuse sheath-style Wedding Gowns, in that sheaths may possibly shorten the entire body. And full skirts which will trigger you to be "bottom heavy" really should also be rejected.For broader shouldered brides, you are able to try bridal dresses with halter or off-the shoulder neckline, or you'll be able to adopt strapless Wedding Gowns together with fine cute accessories which can go well together with your body type.off the Shoulder Wedding Dresses for brides will work nicely with large-busted brides. This dress style may well appeal the attention upwards by stressing the shoulders. Bear your mind to steer clear of full skirts which may possibly make your entire body look huge and fat. Narrow skirts are your very best selection.

Comment of coach factory outlet (2011-09-26 10:49:18):
coach bags  coach purses  coach outlet  coach factory outlet  coach outlet  coach factory outlet  coach outlet online  coach factory outlet  louis vuitton online  coach boots  louis vuitton bags outlet  louis vuitton bags  louis vuitton sale  louis vuitton outlet  Moncler Outlet  

Comment of louis vuitton outlet (2011-09-26 11:05:05):
Christian Louboutin  Christian Louboutin Soldes  Louis Vuitton  Borse Louis Vuitton Outlet  Burberry Outlet  Louis Vuitton Handbags  Tiffany UK  Tiffany And Co  Burberry Scarf  Moncler  Tiffany Jewelry  Tiffany Outlet  Coach Outlet Store Online  chanel tassen  Burberry Sale  Louis Vuitton Borse  Louis Vuitton Outlet  louis vuitton sale  Louis Vuitton Bags  sito louis vuitton  Sac Louis Vuitton Pas Cher