[techtalk] Interface settings - noarp, promisc...

[Andrew Wendt]

On August 2, 2001 20:57, coldfire wrote:
> > Why is spoofing a hardware address a hell of a feat?
>
> it can be done .. but hardware addresses are hard coded onto the network
> interface.

Linux will let you set it quite easily...

[20:18:09 root at andy:~] ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:20:78:12:6B:E4
          inet addr:10.0.0.2  Bcast:10.255.255.255  Mask:255.0.0.0
          inet6 addr: fe80::220:78ff:fe12:6be4/10 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:3 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          Interrupt:9 Base address:0x6500
[20:18:22 root at andy:~] ifconfig eth0 down
[20:18:26 root at andy:~] ifconfig eth0 hw ether 00:20:78:12:6B:E3
[20:18:27 root at andy:~] ifconfig eth0 up
[20:18:29 root at andy:~] ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:20:78:12:6B:E3
          inet addr:10.0.0.2  Bcast:10.255.255.255  Mask:255.0.0.0
          inet6 addr: fe80::220:78ff:fe12:6be3/10 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:5 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          Interrupt:9 Base address:0x6500

TTFN
Andy