the modem dhcp server options should have at least these options;
1 subnet mask
2 time offset
3 gateway
4 time server
51 lease time
66 tftp server ip address
67 bootfile name
tftp server would have a folder with all the modem files and tftp program would point to that folder
That point is clear. What I mean, where is stored config file in modem after its successfully downloaded from the TFTP server? In RAM or non-vol storage?
Does this similar with Cisco IOS software that have two types of configuration files: the running (current operating) configuration and the startup configuration. The running configuration is stored in RAM; the startup configuration is stored in NVRAM. Cable modem need download a config file every time it boots or powered on: then it should be RAM, not a persistent non-volatile memory. Am I correct?
the modem dhcp server options should have at least these options;
1 subnet mask
2 time offset
3 gateway
4 time server
51 lease time
66 tftp server ip address
67 bootfile name
tftp server would have a folder with all the modem files and tftp program would point to that folder
That point is clear. What I mean, where is stored config file in modem after its successfully downloaded from the TFTP server? In RAM or non-vol storage?
Does this similar with Cisco IOS software that have two types of configuration files: the running (current operating) configuration and the startup configuration. The running configuration is stored in RAM; the startup configuration is stored in NVRAM. Cable modem need download a config file every time it boots or powered on: then it should be RAM, not a persistent non-volatile memory. Am I correct?
It is in RAM. That is why after it reboots, it goes through the whole process all over again.
Also makes it so that if you change your cm config file, a simple reboot allows the modem to take the new file and run with it.
--John