[GRLUG] Cable modems

L. V. Lammert lvl at omnitec.net
Sun Jan 24 14:58:37 EST 2016


OK, .. got a weird situation:

The local cable company [Charter here in St.Louis] told us they would give
us a monthly discount if we swapped out our Docsis 3.0 Motorola modem for
a new one. Looks like the new Cisco unit will bond 16 channels together
for a lot higher bandwidth. OK, .. sounds good to me.

The new Cisco provisions just fine and works with a laptop, but when I
connect it to my firewall box it does not route traffic. DHCP does not
actually assign a gateway, so I plugged in the GW that the modem gives my
laptop. No joy, .. so I switched to static IP & GW [same as the laptop],
no joy. Cloned the MAC address from my laptop to the linux firewall box,
.. no joy. The old Motorola unit worked just fine via DHCP.

Something has changed with this new Cisco unit - the "Link" light flashes
green with my laptop, but YELLOW with the firewall box.

Has anyone run into a situation like this?

        Thanks!

        Lee



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