| I wonder how the count the traffic I wonder if they will be counting all inbound traffic that gets delivered, or just passes their border router.
I.e. if you turn the modem off while someone keeps sending packets to "your" address, will that still have counter spinning or if the modem needs to be on, and if router manufacturers will start offering a power port to bring the cable modem up/down on demand 
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Странные новости почти каждый день |
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 MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | said by bugabuga:I wonder if they will be counting all inbound traffic that gets delivered, or just passes their border router. I.e. if you turn the modem off while someone keeps sending packets to "your" address, will that still have counter spinning or if the modem needs to be on, and if router manufacturers will start offering a power port to bring the cable modem up/down on demand If you turn your modem off, you no longer have an address. It's assigned to the device behind the modem, not the modem itself. |
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| That's not necessarily true. Routing doesn't change. IP address linked to modem's MAC address doesn't change. Traffic may still come down to the node etc
Unlike dial-up, cable modems have quite consistent IP addresses |
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MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | said by bugabuga:That's not necessarily true. Routing doesn't change. IP address linked to modem's MAC address doesn't change. Traffic may still come down to the node etc Unlike dial-up, cable modems have quite consistent IP addresses If you power your cable modem off, the CMTS will know there is not a link any longer and release the IP. |
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 en102Canadian, eh?
join:2001-01-26
Valencia, CA | I would expect it to be tied into the MAC address of your cable modem. |
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| reply to bugabuga
Here on Bresnan, each subscriber gets 2 IPs so to speak. One is assigned to the modem directly and is inside of Bresnan's internal network with a private IP in the 10.253.x.x range. The other is assigned to the device behind the modem and is a public IP in the 69.144.x.x range.
If they were to monitor only the 69.144.x.x IP, that should eliminate any local chatter from the modem to the CMTS and vice versa. |
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MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | reply to en102
said by en102:I would expect it to be tied into the MAC address of your cable modem. It is tied to the MAC address of the device attached to the cable modem. |
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MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | reply to koolkid1563
said by koolkid1563:If they were to monitor only the 69.144.x.x IP, that should eliminate any local chatter from the modem to the CMTS and vice versa. That is what I was referring to. If a public IP isn't assigned to SOME device attached to the cable modem, you can't send traffic anyway. |
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 DaMaGeINCThe Lan ManPremium
join:2002-06-08
Greenville, SC
kudos:2 | reply to bugabuga
What about all the broadcast traffic that hits the cable modem? Notice how the recieve light consintly flashes? If you were to count all that traffic, it would add up. |
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MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | said by DaMaGeINC:What about all the broadcast traffic that hits the cable modem? Notice how the recieve light consintly flashes? If you were to count all that traffic, it would add up. That is the ARP traffic the other posters are referring to. If they measure your public IP traffic at the egress router, none of that matters. |
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en102Canadian, eh?
join:2001-01-26
Valencia, CA | reply to Matt
They could probably use something as simple as SNMP to read the stats going over the Internet side.
MRTG, Cricket, etc. could all do the function fairly easily.
The longest part would be implementing (documenting, NOC, process, etc.) |
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