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02-03-2005, 10:16 AM | #31 |
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Yeah, that is strange. I think it points to something being out of whack with the router though. Did you contact Motorola yet?
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02-03-2005, 10:29 AM | #32 |
That's just f***in' stupid
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Check with your ISP... they may be logging MAC addresses to insure you are putting only ONE system on the internet, per terms of your service agreement.
I know some ISPs do that. You do not need to clone your PC's MAC address unless that's the address they have on file as the permitted address.
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02-03-2005, 10:32 AM | #33 | |
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02-03-2005, 10:33 AM | #34 | |
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02-03-2005, 10:38 AM | #35 | |
That's just f***in' stupid
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TWC doesn't... plus my service is 100% up and running at 5Mbps
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02-03-2005, 10:54 AM | #36 | |
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02-08-2005, 12:11 PM | #37 | |
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02-08-2005, 12:40 PM | #38 | |
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02-09-2005, 03:14 PM | #39 |
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Essentially the WAN side (cable) will now pickup the DHCP address which used to be directed to your PC and the LAN side will be assigned an internal private address that will either perform NAT if you have multiple public IPs or PAT (most likely).
Sound to me like an arp cache problem on return traffic. I can't see any other reason why you router would stop passing traffic to your PC but start again once the machince is reset or when you enable, then disable the MAC cloning option. Basically when you do either of these things the CAM table of the switch is clear along with any arp entries associated with those MAC addresses. The problem has to reside somewhere at the MAC/LLC layer (layer 2 of the OSI model) or on some layer offering support to both layer 2 and 3 like ARP. Just out of curiousity, is there a setting in your router to clear the arp cache? |
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02-09-2005, 03:20 PM | #40 | |
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What could be happening is that when you plug your machine directly into the cable it is on what is called a broadcast domain with all other machinces that share an IP address in your subnet mask range. In other words it will hear broadcasts from other machines within its own network pretty well all of the time causing the NIC (network interface card) to never be able to go into sleep mode (if wake on LAN is enabled). Now when you plug it in with a router in the middle it changes things. Suddenly the public interface of your router in on that broadcast domain an you are on your own. Routers will not forward broadcasts by default and eventually any TCP connections you had will timeout with no activity over a period of time. With no traffic being received the NIC will shut itself down (sleep mode) if wake on LAN is enabled and will not come back up until new traffic is received. Generally I always disable it because I have found that it rarely works like it is supposed. Note: Most machines these days are Energy Star compliant and wake on LAN is enabled by default. It might not be your issue but I have seen similar things happen before. |
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02-20-2005, 10:15 PM | #41 |
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Update: I upgraded to the latest version of ZoneAlarm and the problem seems to have gone away. The PC has been on for 4 days straight without a reboot and the internet works everytime I've tried it. Thanks to all of you for your advice.
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