strange ping problem ( lan / router / wan )

[CapNemo]

hi again,

sorry for that delay in my follow up, "real life" problems kept me from messing around with linux the last couple of days...

first of all, i'd like to thank you for your patience, second is: it's working now. :)
it WAS the mac access control, after all.
what i didn't figure out until really disabling it is the following:
apparently knoppix changes the mac address at one byte, only for that pc.
"win": 00:09:6B:... -> "knoppix": 00:09:5B:...
looks like i've overseen that while i checked first.
what i don't understand is, why knoppix changes the mac ( or does windoze, and i didn't notice it yet? ), and why it happens only at one pc, as the other box i tested it on is working fine, using both win and linux.

\\//,
Nemo

[Harry Kuhman]

it WAS the mac access control, after all.
what i didn't figure out until really disabling it is the following:
apparently knoppix changes the mac address at one byte, only for that pc.
"win": 00:09:6B:... -> "knoppix": 00:09:5B:...
looks like i've overseen that while i checked first.
what i don't understand is, why knoppix changes the mac ( or does windoze, and i didn't notice it yet? ), and why it happens only at one pc, as the other box i tested it on is working fine, using both win and linux.

Thanks for the feedback Nemo. And that's a very interesting report. I can tell you that I never have seen a difference between Windows and Knoppix MAC addresses, and I use the MAC address to force IP address assignments with my Dlink router, likely for the same reasons that you are using static addresses on your system. My router would and does assign a different address if the MAC was "new", so I can safely state that Knoppix does not change my MAC addresses. I know Linux can change the MAC address if told to, but have never seen it happen without being told. If anyone has more information or insight on this I would really welcome the feedback.

Gald it was fixed. Sure didn't make much sense when we started the discussion, but it was resolvable.

[pureone]

i have had this happen to me a few times.

i run a router with wifi access so i make sure mac access is on at all times. and i have noticed that sometimes knoppix does create a differnt mac address. why i have no idea but i know that it does happen