The network configuration checker tool in System Manager compares the active and persistent configuration values and the command sequence of some network configuration settings in the
/etc/rc file. The tool is automatically run when you change the network configuration by using
System Manager to verify configuration mismatches.
System Manager creates a backup of the
/etc/rc files and
/etc/hosts files before making any changes, which enables you to restore the configuration settings from these backup files. The backed-up information is overwritten every time a networking operation is performed from
System Manager. In the event of some corruption, you can restore the configuration settings in the
/etc/rc file from the
rc.sysmgr.bak file and the settings in the
/etc/hosts file from the
hosts.sysmgr.bak file.
The network configuration checker tool does not verify all the parameters of the ifconfig command. Only the following
System Manager induced mismatches and errors are verified:
For example, consider the command ifconfig e0a hostname -e0a mediatype ato flocontrol full netmask 255.255.0.0 mtusize 1500. In this example, the character "
w" is missing in the
flow control option and "
u" is missing in the value
auto for the media type option. The network configuration checker tool detects this statement as a mismatched entry.
The tool detects corruption in the network commands, such as ifconfig,
ifgrp,
route, and
vlan, and their corresponding arguments. However, if the corruption is in the argument values of the commands, the tool does not detect the corruption.
System Manager does not manage script-based
/etc/rc files, because the files cause mismatches between the active and persistent settings. The following are examples of script-based
/etc/rc files:
source -v/tc/myhostname and
source -v/etc/myifconfigs.
