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.