eCos Reference Manual
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# Maintenance Tools

    set_mac_address - set MAC address(es) of interfaces in NVRAM

This program makes an example `ioctl()` call SIOCSIFHWADDR “Socket IO Set InterFace HardWare ADDRess” to set the MAC address on targets where this is supported and enabled in the configuration. You must edit the source to choose a MAC address and further edit it to allow this very dangerous operation. Not all ethernet drivers support this operation, because most ethernet hardware does not support it — or it comes pre-set from the factory. Do not use this program.

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