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Setting the IP address of a running system using internet address manager (IAM) on NET+OS V7.X

Here is how you can change Netos 7.X IP address on the fly:
  • get the DHCP configuration from NVRAM
iamStatus = customizeIamGetDhcpConfig("eth0", &myIamDhcpParams);
  • set DHCP to disabled
myIamDhcpParams.isEnabled = FALSE;
  • write the DHCP configuration back to NVRAM
iamStatus = customizeIamSetDhcpConfig("eth0", &myIamDhcpParams);
  • get the static configuration from NVRAM
iamStatus = customizeIamGetStaticConfig("eth0", &myIamStaticParams);
  • set static to enabled
myIamStaticParams.isEnabled = TRUE;
  • set up the IP address, subnet mask and gateway
myIamStaticParams.ipAddress.addr.ipv4.sin_addr.s_addr = 0xA34217C; // 10.52.33.124
myIamStaticParams.subnetMask = 0xfffff80;  //255.255.248.0
myIamStaticParams.gateway.addr.ipv4.sin_addr.s_addr = 0xA342001; //10.52.32.1
  • write the static configuration back to NVRAM
iamStatus = customizeIamSetStaticConfig("eth0", &myIamStaticParams);
  • retrieve the address acquisition method last used
theIamStatus = naIamGetCurrentMethod("eth0", &myMethod);
  • disable DHCP in RAM
theIamStatus = naIamDisable("eth0", myMethod);
  • enable static in RAM
theIamStatus = naIamEnable("eth0", NA_IAM_METHOD_STATIC);
  • if you have a serial line connected to a terminal emulator, you will see the IAM messages announcing the loss of the DHCP address and the acquisition of the static address
  • get the DHCP configuration from NVRAM
iamStatus = customizeIamGetDhcpConfig("eth0", &myIamDhcpParams);
  • set DHCP to enabled
myIamDhcpParams.isEnabled = TRUE;
  • write the DHCP configuration to NVRAM
iamStatus = customizeIamSetDhcpConfig("eth0", &myIamDhcpParams);
  • get the static configuration from NVRAM
iamStatus = customizeIamGetStaticConfig("eth0", &myIamStaticParams);
  • zero out all static address fields
myIamStaticParams.ipAddress.addr.ipv4.sin_addr.s_addr = 0x00000000;
myIamStaticParams.subnetMask = 0x00000000;
myIamStaticParams.gateway.addr.ipv4.sin_addr.s_addr = 0x00000000;
  • disable static
myIamStaticParams.isEnabled = FALSE;
  • write the static configuration back to NVRAM
iamStatus = customizeIamSetStaticConfig("eth0", &myIamStaticParams);
  • disable static in RAM
theIamStatus = naIamDisable("eth0", NA_IAM_METHOD_STATIC);
  • enable DHCP in RAM
theIamStatus = naIamEnable("eth0", NA_IAM_METHOD_DHCP);
  • If you have a serial line connected to a terminal emulator, you will see the IAM messages announcing the loss of the static address and the acquisition of the DHCP address.
Last updated: Jun 13, 2019

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