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+--- Thread: Why can't I connect to router via ethernet? (/showthread.php?tid=54561)
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Re: Why can't I connect to router via ethernet? - freeradical - 05-09-2008
[quote Black Landlord][quote freeradical]Does your router do MAC address filtering? Your airport card and ethernet port have different MAC addresses. You might have to log in to your router and add the MAC address for the ethernet port.
Yeah MAC address filtering is in place and AP card is enabled. This is an excellent tip-- didn't realize...
Yes, but what about the ethernet port? It has a different MAC address. I too have a Belkin router, and this is what their help says:
"MAC Address Filtering
The MAC Address Filter is a powerful security feature that allows you to specify which computers are allowed on the network. Any computer attempting to access the network that is not specified in the filter list will be denied access. When you enable this feature, you must enter the MAC address of each client on your network to allow network access to each. The "Block" feature lets you turn on and off access to the network easily for any computer without having to add and remove the computer's MAC address from the list. To enable this feature, select "Enable MAC Address Filtering". Next, enter the MAC address of each computer on your network by clicking "Add" and entering the MAC address in the space provided. Click "Apply Changes" to save the settings. To delete a MAC address from the list, simply click "Delete" next to the MAC address you wish to delete. Click "Apply Changes" to save the settings. "
Re: Why can't I connect to router via ethernet? - Black Landlord - 05-09-2008
Yeah, I know how to do it... just didn't click on the seperate addy for the ethernet card.
Got into this same trap trying to enable a neighbor's laptop once-- she was apparently giving me her ethernet addy, not her airport card's. You'd think I'd learn.
Anyways alles gut now, many thanks.
Re: Why can't I connect to router via ethernet? - JoeH - 05-09-2008
That is one reason I like the MAC address filtering on my Linksys router. It can be set to only apply to wireless connections; and since I have control over what get plugged in on the wired side, that is all I need.
Re: Why can't I connect to router via ethernet? - silvarios - 05-09-2008
Okay. I'll try posting this info again. MAC address filtering is useless. Sure it keeps the average user out, but anyone actually trying to get onto your network won't even pause for a moment when confronted with MAC address filtering. Every packet you send and receive on your network will show your MAC address.
"James's TCP/IP FAQ - Understanding Network Hardware" wrote: Your machine will then formulate a packet containing your own MAC as the source MAC address and the destination computer's MAC address as well (the packet will also still have to show the source and destination IP addresses and port numbers - the MAC addresses are just additional information that has to be there).
An attacker sitting around being sneaky will snag a packet and uncover your MAC address. The attacker then spoofs your MAC address and joins your network.
MAC address filtering does a great job of keeping the average user locked out of their own network. Time and time again.
Nathan
Re: Why can't I connect to router via ethernet? - Black Landlord - 05-09-2008
[quote silvarios]Okay. I'll try posting this info again. MAC address filtering is useless. Sure it keeps the average user out, but anyone actually trying to get onto your network won't even pause for a moment when confronted with MAC address filtering. Every packet you send and receive on your network will show your MAC address.
"James's TCP/IP FAQ - Understanding Network Hardware" wrote: Your machine will then formulate a packet containing your own MAC as the source MAC address and the destination computer's MAC address as well (the packet will also still have to show the source and destination IP addresses and port numbers - the MAC addresses are just additional information that has to be there).
An attacker sitting around being sneaky will snag a packet and uncover your MAC address. The attacker then spoofs your MAC address and joins your network.
MAC address filtering does a great job of keeping the average user locked out of their own network. Time and time again.
Nathan
OK, got that. Like, 5 times now. But some of us have had trouble enabling wifi and found ourselves unable to connect as well. Are you offering to walk me through that process and be on call in case I get stuck?
Re: Why can't I connect to router via ethernet? - silvarios - 05-09-2008
Black Landlord,
Not really directed at you. We've had this exchange before. I was more posting for those who still think MAC address filtering actually does anything.
I've had WiFi issues before on my own network and even a client's network. I understand the frustration. Best solution is to start from scratch (only if you have your PPPoE login info of course). Make notes of the setup and even sketching out a rough diagram of your network never hurt.
Good luck.
Nathan