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Posted by clifto on December 13, 2007, 3:45 pm
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Peter Pearson wrote:
> When my cable modem is connected only to power and cable,
> the "Activity" light flickers irregularly several times per
> second, indefinitely. This seems odd, since (I presume) no
> activity has been requested.
I'm on Comcast. They hit my system with literally 1,700 ARP requests per
minute, every minute of every day. That's probably what you're seeing.
--
Dec. 6 (Bloomberg) -- Government officials and activists flying to Bali,
Indonesia, for the United Nations meeting on climate change will cause
as much pollution as 20,000 cars in a year.
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Posted by Peter Pearson on December 13, 2007, 8:29 pm
> Peter Pearson wrote:
>> When my cable modem is connected only to power and cable,
>> the "Activity" light flickers irregularly several times per
>> second, indefinitely. This seems odd, since (I presume) no
>> activity has been requested.
>
> I'm on Comcast. They hit my system with literally 1,700 ARP requests per
> minute, every minute of every day. That's probably what you're seeing.
Amazing. Will ARP requests show up on my side of the cable modem?
(I should have mentioned that Charter Communications is my cable
provider.)
--
To email me, substitute nowhere->spamcop, invalid->net.
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Posted by clifto on December 13, 2007, 9:52 pm
Peter Pearson wrote:
>> Peter Pearson wrote:
>>> When my cable modem is connected only to power and cable,
>>> the "Activity" light flickers irregularly several times per
>>> second, indefinitely. This seems odd, since (I presume) no
>>> activity has been requested.
>>
>> I'm on Comcast. They hit my system with literally 1,700 ARP requests per
>> minute, every minute of every day. That's probably what you're seeing.
>
> Amazing. Will ARP requests show up on my side of the cable modem?
Yes, that's how I know about them. I use the linux 'nstats' program to
count them.
> (I should have mentioned that Charter Communications is my cable
> provider.)
I'll bet they do the same. Don't know how to tell using Windows, though.
--
Dec. 6 (Bloomberg) -- Government officials and activists flying to Bali,
Indonesia, for the United Nations meeting on climate change will cause
as much pollution as 20,000 cars in a year.
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Posted by $Bill on December 13, 2007, 10:30 pm
Peter Pearson wrote:
>> Peter Pearson wrote:
>>> When my cable modem is connected only to power and cable,
>>> the "Activity" light flickers irregularly several times per
>>> second, indefinitely. This seems odd, since (I presume) no
>>> activity has been requested.
>> I'm on Comcast. They hit my system with literally 1,700 ARP requests per
>> minute, every minute of every day. That's probably what you're seeing.
>
> Amazing. Will ARP requests show up on my side of the cable modem?
> (I should have mentioned that Charter Communications is my cable
> provider.)
The Activity/Data light on the modem is only what is being passed through
to your (hopefully) router. You can see the same WAN port activity on the
router as you do on the modem. The router will block most of that
activity. If you don't have a router, you might consider getting one -
they're pretty inexpensive when you consider the added protection to
your system(s). $40 will pick up a wireless G router from Netgear
(actually only $27 + shipping at Frys.com -
http://shop4.outpost.com/product/3635275 ) and another $10 will get you
a Linksys if you prefer. Both have a 4-port switch so you can use wires
if you prefer.
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| Similar Threads | Posted | | Re: Question on identifying cable-modem activity | December 13, 2007, 1:56 pm |
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