EEPW论坛

很久以前本论坛有一篇帖子，讲过如何动态修改mac地址。

找找看。

void MacSet(int port) { char* buf; int length;

if (sysNvRamGet((UINT8 *)&npeMacAddr.macAddress, IX_IEEE803_MAC_ADDRESS_SIZE, nvRamNpeMacAddr[port]) == ERROR) { printf("ixe %d - Unable to read MAC address from non-volatile storage!\n" , port );

} /* Check for a valid MAC address - Only compare first three bytes */ npeMacAddr.macAddress[5] += port;

printf("ixe ETH PHY %d Hard Coded MAC address is: %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n" , port ,npeMacAddr.macAddress[0], npeMacAddr.macAddress[1] ,npeMacAddr.macAddress[2], npeMacAddr.macAddress[3] ,npeMacAddr.macAddress[4], npeMacAddr.macAddress[5]);

printf ("npeMacAddr.macAddress0\n"); length = read (STD_IN, buf, sizeof(buf) - 1); npeMacAddr.macAddress[0]=atoi(buf); printf ("npeMacAddr.macAddress1\n"); length = read (STD_IN, buf, sizeof(buf) - 1); npeMacAddr.macAddress[1]=atoi(buf);

printf ("npeMacAddr.macAddress2\n"); length = read (STD_IN, buf, sizeof(buf) - 1); npeMacAddr.macAddress[2]=atoi(buf);

printf ("npeMacAddr.macAddress3\n"); length = read (STD_IN, buf, sizeof(buf) - 1); npeMacAddr.macAddress[3]=atoi(buf);

printf ("npeMacAddr.macAddress4\n"); length = read (STD_IN, buf, sizeof(buf) - 1); npeMacAddr.macAddress[4]=atoi(buf);

printf ("npeMacAddr.macAddress5\n"); length = read (STD_IN, buf, sizeof(buf) - 1); npeMacAddr.macAddress[5]=atoi(buf);

npeMacAddr.macAddress[5] += port;

printf("ixe ETH PHY %d Hard Coded MAC address is: %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n" , port ,npeMacAddr.macAddress[0], npeMacAddr.macAddress[1] ,npeMacAddr.macAddress[2], npeMacAddr.macAddress[3] ,npeMacAddr.macAddress[4], npeMacAddr.macAddress[5]); }

不能提供你源代码，提供一个思路，我们就是这么做的。

将mac地址保存在flash上的一个固定地址处，每次更改flash就重新写到这里，需要用地址的时候就从这里读取，写连个操作flash的接口就好了，另外就是修改地址时逻辑判断的一个函数，在那个函数中调用写接口写进去。

兄弟，帮忙啊，谢谢

通过ipmacset命令后，ip地址改了,MAC 也改了，可是这里去ping不通， 并且bootline中的目标板的地址却还是原来的，启动时显示的mac还是原来的，奇怪！！

-> ipmacset

ixe0 MAC address: 00:02:b3:3c:16:68 ixe1 MAC address: 00:02:b3:3c:16:69

ixe0 IP address: 169.254.113.143 ixe1 IP address: 169.254.113.144

Any Changes (y/n)> y

Change a MAC address (y/n)> y ixe0 MAC address: 00:02:b3:3c:16:68 00:02:b3:3c:16:68 ixe1 MAC address: 00:02:b3:3c:16:69 00:02:b3:3c:16:64

Change ixe IP address (y/n)> y ixe0 IP address: 169.254.113.143 169.254.113.146 ixe1 IP address: 169.254.113.144 169.254.113.147

ixe0 MAC address: 00:02:b3:3c:16:68 ixe1 MAC address: 00:02:b3:3c:16:64

ixe0 IP address: 169.254.113.146 ixe1 IP address: 169.254.113.147

Any Changes (y/n)> y

Change a MAC address (y/n)> n

Change ixe IP address (y/n)> n

ixe0 MAC address: 00:02:b3:3c:16:68 ixe1 MAC address: 00:02:b3:3c:16:64

ixe0 IP address: 169.254.113.146 ixe1 IP address: 169.254.113.147

Any Changes (y/n)> n

Writing interface data to non-volatile storage... New configuration written, changes will take effect after a reboot value = 0 = 0x0 -> reboot 系统重新启动后。。。

-> ipmacset

ixe0 MAC address: 00:02:b3:3c:16:68 ixe1 MAC address: 00:02:b3:3c:16:64

ixe0 IP address: 169.254.113.146 ixe1 IP address: 169.254.113.147

Any Changes (y/n)> n value = 0 = 0x0 ->

-> ping "169.254.113.146",1,0 ping: timeout no answer from 169.254.113.146 value = -1 = 0xffffffff -> ping "169.254.113.147",1,0 ping: timeout no answer from 169.254.113.147 value = -1 = 0xffffffff -> ip地址从这里看是改了,MAC 也改了，可是这里去ping不通， 并且bootline中的目标板的地址却还是原来的，奇怪！！ '.' = clear field; '-' = go to previous field; ^D = quit

boot device : ixe1 processor number : 0 host name : host file name : vxworks inet on ethernet (e) : 169.254.113.144 inet on backplane (b): host inet (h) : 169.254.113.140 gateway inet (g) : user (u) : xjb ftp password (pw) (blank = use rsh): 1 flags (f) : 0x0 target name (tn) : startup script (s) : other (o) : ixe0 value = 0 = 0x0