Technote (troubleshooting)
Upon reboot an IP alias is automatically assigned to an interface by the operating system. How do I prevent this ?
Prior to the start of the cluster or at least the start of IBM.GblResRM, an IP Alias is already being assigned to a NIC.
Cause
In AIX you can set a permanent IP Alias to an interface so that it will be automatically re-assigned after a reboot. The command that does this is "chdev".
For example, to assign an alias :
For example, to assign an alias :
chdev -l en0 -a alias4=192.168.0.100,255.255.255.0
To remove the alias, issue the following command:
chdev -l enX delalias4=,
where:
X=number of the network interface the alias is assigned to, example, en0, en1, en2...IP_Address_of_Alias= The alias IP Address, not the default NIC/System address for that adapterSubnet_Mask= The subnet mask used to create the alias.
The values for the above parameters can be obtained from the output of "ifconfig -a".
chdev -l enX delalias4=
where:
X=number of the network interface the alias is assigned to, example, en0, en1, en2...IP_Address_of_Alias= The alias IP Address, not the default NIC/System address for that adapterSubnet_Mask= The subnet mask used to create the alias.
The values for the above parameters can be obtained from the output of "ifconfig -a".
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