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The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: netmation on June 03, 2009, 04:38:20 PM

Title: Why LAN MAC ID different from what is on Router?
Post by: netmation on June 03, 2009, 04:38:20 PM: The bottom of my router has a MAC ID almost identical to the LAN MAC ID my firmware shows. Only difference is the last number is 73 in the firmware instead of 74 on the bottom of the router. Why the descrepancie on this?
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: jason1722x on June 03, 2009, 06:12:11 PM: lol..I was about to post the same topic. The last 2 digets on bottom of the router mac addy is AA but on wan it's A9.

why?
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: Arvald on June 03, 2009, 06:34:59 PM: the Router will have 2 MAC addresses. 1 WAN and 1 LAN. I looked and mine are similarly close together.
you sure your reading the right one?
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: netmation on June 03, 2009, 09:33:14 PM: Yes reading the right one, looked at the WAN and LAN, they are not that simlar.
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: davevt31 on June 04, 2009, 04:37:16 AM: The MAC address on the sticker on the bottom should be the one for your WAN connection, you can verify by looking at the Status > Device Info page when you log into the router.
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: jason1722x on June 04, 2009, 05:20:10 AM: Quote from: davevt31 on June 04, 2009, 04:37:16 AM
The MAC address on the sticker on the bottom should be the one for your WAN connection, you can verify by looking at the Status > Device Info page when you log into the router.

Well it's not, the only way I've been able to set up my DHCP is to clone my computer's mac in manual setup under the Internet tab.
When I tried to enter the Mac addy , save , reboot I will net be able to reach my ISP.

UPDATE: After I entered the routers mac, saved, rebooted. I reset the cable modem and that did it. It kept my routers mac in wan.
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: netmation on June 04, 2009, 08:30:38 AM: On my the WAN is not close to the bottom of the router, though the LAN is close??

On the Status / Device Info screen.....
WAN – yy:yy:yy:yy:5E:5F
LAN - xx:xx:xx:xx:03:73
Wireless LAN – zz:zz:zz:zz:03:73

On the bottom of my router is a label that says:
MAC- xx:xx:xx:xx:03:74

The above is not a typo, the bottom of the router and the LAN in the Status screen is identical except for the last number.
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: Fatman on June 04, 2009, 08:51:43 AM: did you clone a PCs MAC address for your WAN connection?

The most relevant portion of a MAC address is actually the first 6 characters, those ID the vendor. In the future if we are going to obscure MACs something like the below would be better.

aa:bb:cc:xx:xx:00

Where the aa:bb:cc portion is the real OUI from the MAC (this would have told me instantly if you had cloned your MAC cause it would have your interface vendors OUI not D-Links)

the xx:xx you can obfuscate, it really doesn't matter to us other than knowing that you have sequential MACs (which you should).
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: netmation on June 04, 2009, 09:29:26 AM: Yes I did clone my PC MAC to the WAN. Still puzzled why the label on the bottom of the router has an almost identical MAC address as to what is the LAN MAC address in the firmware, execept for the last number? Thanks for your help.
Title: Re: Why LAN MAC ID different from what is on Router?
Post by: Fatman on June 04, 2009, 09:32:01 AM: Because we assign sequential MACs to this device, why would we assign them randomly, they are sequential.