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Old 12-30-2009, 05:41 AM   #1
LQ Newbie
Registered: Oct 2008
Posts: 10

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change mac address

changed my mac address and want to connect to my router->

ifdown eth0

ifconfig eth0 hw ether 00:133:63:13:92

dhclient eth0

i connect to my router successfully but my browser can't open anything ( Firefox) but in terminal i can connect to each site but my browser is my problem , how can i fix it?

i followed this way:

ifconfig -a


Link encap:Ethernet HWaddr 00:133:63:13:92

inet6 addr: fe80::213:d3ff:fe63:1392/64 Scope:Link


RX packets:3256 errors:0 dropped:0 overruns:0 frame:0

TX packets:3559 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:1196330 (1.1 MiB) TX bytes:573162 (559.7 KiB)

Interrupt:23 Base address:0xc000

according the output i connect to router successfully and reach any site such as google

(my router ip address is

PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=255 time=1.68 ms
64 bytes from icmp_seq=2 ttl=255 time=0.510 ms
64 bytes from icmp_seq=3 ttl=255 time=0.526 ms
--- ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2169ms

nc -vv 80
Connection to 80 port [tcp/http] succeeded!

now how can i fix my broswer that work with this new mac & ip address?

in windows i did it successfully( with firefox ) but in linux i can't do it with my browser(firefox)
Old 12-30-2009, 09:26 AM   #2
LQ Guru
Registered: Jan 2009
Location: Japan
Distribution: Mostly Debian and Scientific Linux
Posts: 5,753

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I don't quite see what your problem is. Your network is ok, but firefox is having problems?

Can you give as specific hostname that you can ping but firefox can't load a page from?

Eg. "ping" works but "firefox" does not.

And can you confirm that firefox is not trying to use a proxy that does not exist?


Ps. This should have nothing to do with changing your mac address.


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