I have seen that on most, if not all broadband systems lately.
-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
On 4/2/2011 6:20 PM, Josh Luthman wrote:
I've seen that on my cable company here.
On Apr 2, 2011 6:36 PM, "Chris Hudson" <[email protected]
<mailto:[email protected]>> wrote:
> Some cable provides latch onto the Mac address of the device being
plugged into it. And you have to reset the cable modem.
>
> Chris
>
> Greg Ihnen <[email protected] <mailto:[email protected]>> wrote:
>
>>I posted this on the MT forum but I wanted to throw it out here too.
Thanks.
>>
>>I've got an RB-750 that I want to replace with an RB-750G and I
can't get any connectivity between the RB-750G and the Motorola
Surfboard cable modem.
>>
>>First I exported in imported the RB-750's config into the RB-750G
but the RB-750G didn't seem to be getting a DHCP address from the
Motorola Surfboard cable modem on it's Ether1-Gateway port. I had a
link light but no connectivity, the RB-750G wouldn't even respond to a
ping from the internet. Then I tried the RB-750G with the default
config (after \system reset) and it still wouldn't work. Again I had a
link light but no connectivity in or out. Next I disabled the
RB-750G's DHCP client on the Ether1-Gateway port and manually
configured it for the public IP address that the Surfboard has been
giving out via DCHP for years. It's a dynamic IP address but it never
changes even after widespread system wide outages experienced by the
cable company. That seems to be our address. Anyway, Even with the IP
address manually configured I still couldn't get any connectivity.
>>
>>I'm located in South America and the modem/RB-750G in question are
in NY. I'm managing all this remotely. When I was testing connectivity
I was trying to ping the router from the internet, connect to the
router via WinBox from the internet, and by having the local users
attempt to access the internet. All of those failed.
>>
>>Now my guess is the RB-750G and modem are not successfully
auto-negotiating the Ethernet port parameters. So I had the user pick
up a cross over cable which I'm going to try next with the RB-750G set
to 100Mbps and full duplex.
>>
>>Any ideas about what the problem could be would be greatly appreciated.
>>
>>Greg
>>
>>
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