中兴光猫ZXHN F663NV9修改mac地址和sn设备标识号

中兴ZXHN F663NV9是一款采用中兴ZX279127S芯片方案的双千兆+双百兆+电话接口的光猫，带天线的为类型三

修改的前提是拥有telnet权限，查看当前设备信息

/ # setmac  show
===============Current Status of TagParam===============
    PONMAC[ID: 32769] is not set
   PONLOID[ID:  2180] is set to 37 49 6c 62 39 33 31 34 30 32 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
 PONPASSWD[ID:  2181] is set to 00 00 00 00 00 00 00 00 00 00 00 00 
    EPONSN[ID:  2182] is not set
  VENDORID[ID:  2176] is set to 5a 54 45 47 
    GPONSN[ID:  2177] is set to 43 45 32 32 35 30 30 30 
   GPONPWD[ID:  2178] is set to 37 49 6c 62 39 33 31 34 30 32 
       OUI[ID:   768] is set to 33 30 43 43 32 31 
        SN[ID:   512] is set to 5a 54 45 47 43 45 32 32 35 30 30 30 
      MAC1[ID:   256] is set to 30 cc 21 65 4a c0 
      MAC2[ID:   257] is set to 30 cc 21 65 4a c1 
      MAC3[ID:   258] is set to 30 cc 21 65 4a c2 
      MAC4[ID:   259] is set to 30 cc 21 65 4a c3 
      MAC5[ID:   260] is set to 30 cc 21 65 4a c4 
      MAC6[ID:   261] is set to 30 cc 21 65 4a c5 
      MAC7[ID:   262] is set to 30 cc 21 65 4a c6 
      MAC8[ID:   263] is set to 30 cc 21 65 4a c7 
     SSID1[ID:  1024] is set to 43 4d 43 43 2d 78 4e 73 44 

设备标识符SN为30CC21-ZTEGCE225000

中兴光猫设备信息使用16进制加密，通过反向推理可以得到

VENDORID  2176 5a 54 45 47 ZTE
GPONSN 2177 43 45 32 32 35 30 30 30 CE225000
OUI 768 33 30 43 43 32 31 30CC21
SN 512 5a 54 45 47 43 45 32 32 35 30 30 30 ZTEGCE225000

实际设备标识符SN为OUI-VENDORID SN

这里我理解GPONSN是校验位

上面的MAC1就是光猫的pon口mac地址

反向推测，我们就可以对他们进行设置，例如修改SN为10CC21-IXMUNET12345

setmac 1 2176 IXM
setmac 1 2177 NET12345
setmac 1 768 10CC21
setmac 1 512 IXMUNET12345

修改SN1为30 cc 21 65 4a c8

setmac  1 256 30:cc:21:65:4a:c8