Fedora and Qwest

[Mikkel L. Ellertson]

Tim wrote:
> 
> I haven't come across that (yet).  I'm familiar with the issue of some
> ISPs remembering the MAC of the device that connects to their network
> (the DSL modem), but not come across that issue on the client side.
> 
> ISP ---- modem/router ---- client PC
>          (gets IP from     (gets IP from
>          ISP using DHCP)   (modem using DHCP)
> 
> All the modem routers I've played with act as an internal DHCP server
> that give an IP out to every device connected to it, by default,
> automatically.  It'd be a really dumb thing to have to power cycle them
> for everything that gets connected to your LAN.
> 
> Modems in bridge mode are another matter.  The ISP sees the PC's NIC,
> uses its MAC, expects the same one all the time. 
> 
> ADSL Modems without a router (i.e. just one LAN port on them) are
> something I've not played with.
> 
For residential and small commercial, the ADSL modems without a
router have been the norm in the areas I have worked in. From the
fact that just about all firewall/routers sold for their use have
the clone MAC address feature, I am extrapolating that it is common
in most of the U.S. The online support for the firewall/router's
tends to support this as well. For cable modems, Road Runner support
used to, and probably still does list power cycling the modem as a
requirement when you change the NIC. I know at least osme of the
modems they still have in the field require it. (I ran into it a
month ago...)

This only applies when you have a dynamic, or one static IP address.
Things change drastically when you have a commercial account with
more then one IP address. But the hardware also tends to change as well.

Mikkel
-- 

  Do not meddle in the affairs of dragons,
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