I get an ARP broadcast once each second and a ping every 10 seconds, from the Westell 6100
This seems to have started when the new Westell menus were installed.
I unplugged computers & the phone line from the router and its lights still flicker--the packets are generated in the Westell.
Examining the traffic with Ethereal shows: (where 'it' is 192.168.1.1)
It is broadcasting one ARP request a second, cycling through the ports from 192.168.0.1 to 192.168.0.255 (takes about 4 minutes to go around).
It also pings the (two) attached computers (one Windows2000, one WindowsXP) every 10 or 15 seconds.
It also sends something out on the phone line once per second (the 'internet' light flashes) but I have no way of telling what is sent (or received) there.
I telephoned Verizon technical service and got no explanation.
The extra traffic doesn't seem to interfere, though service is variable enough that there is really no way to tell.
Googling found that some cable modems do this (the term is 'ARP storm')
Does anyone know why it is happening? Or how to make it stop? Or does is serve some purpose?