Yesterday evening, one IBM thinkpad is going to the Internet, upgrade the virus library, the virus definition of March 9, Norton2003, crack version,
Insert a network cable, open LiveUpdate, .....................................
Open IE, Baidu .............................. Cannot find the site.
can not get online!
We are local area network access, check the connection attribute, IP has no conflict, of course, no! The gateway is normal, DNS is normal,
All kinds of agreements have, ping themselves,, pass,
PING gateway ,,,,,,,,,,,
PING DNS ......... lost.
This is the basic situation,
Reason: Not because DNS is not available, it is estimated that DNS Server has stuffed Dongdong, normal ..
The problem is on the MAC address !! Because there is a period of time our local area network implementation MAC address binding, in order to internet, "borrow" a legitimate MAC address, tied to this ThinkPad, the binding IP is * . *. *. 48
Now I have opened a new network segment. I don't have to tied Mac. I changed a new IP. The Mac didn't change.
The result has the above fault, and there is no prompt!!
It is estimated because transmitting data in the local area is directly recognized by Mac, regardless of your IP. So my machine is recognized as ... 48 machine, DNS check, look, no! IP does not match Mac! !can not get online!!!
I am like this!!!
