---+ Software Quirks

Ethernet and MAC Addresses Collide by Default

All boards currently come up on IP 192.168.1.71 with MAC address 00:02:00:00:00:00. This means, for example, that boards cannot exist on the same Ethernet segment without colliding (and confusing network hardware.)

To avoid collisions, bring the board up using the following procedure:

  • Unplug network hardware
  • Boot up the board
  • Using RS-232, run the following commands: 

ifconfig eth0 down
ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
ifconfig eth0 up x.x.x.x

where xx:xx:xx:xx:xx:xx is a (perhaps randomly chosen) MAC address and x.x.x.x is the desired IP address.

  • Plug in the network cable. The board should respond to pings.

Telnet sessions don't work by default

Via an RS-232 session, run the following: 

# killall inetd
# telnetd

...and you should be able to telnet in. Root sessions are not accepted remotely by default; you'll have to log in using the username default and su to root.

This topic: CryoElectronics > WebHome > SoftwareQuirks Topic revision: r1 - 2009-08-18 - GraemeSmecher
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