Modifying system IP addresses by using the CLI

Use the command-line interface (CLI) to change the IP addresses that are associated with a system.

About this task

Attention: When you specify a new IP address for a system, existing communication with the system is broken. You must reconnect the system with the new IP address. Additionally, the address for the system IP address cannot be the same IP address as the service IP address. Using the same IP address for both causes an error.

Procedure

To change the system IP address, complete the following steps.

Run the lssystemip command to list IP addresses in use by the system.
Record the IP addresses for future reference.
To change an Internet Protocol Version 4 (IPv4) system IP address, use the -clusterip parameter.
```
chsystemip -clusterip cluster_ip_address -port cluster_port 
```
The cluster_ip_address variable is the new IP address for the system. The cluster_port variable specifies the port (1 or 2) where the change applies.
To change an IPv6 system IP address, use the -clusterip_6 parameter.
```
chsystemip -clusterip_6 cluster_ip_address -port cluster_port
```
The cluster_ip_address variable is the new Internet Protocol Version 6 (IPv6) address for the system. The cluster_port variable specifies the port (1 or 2) where the change applies.
To change an IPv4 default gateway IP address, use the -gw parameter.
```
chsystemip -gw cluster_gateway_address -port cluster_port
```
The cluster_gateway_address variable is the new gateway IP address for the system. The cluster_port variable specifies the port (1 or 2) where the change applies.
To change an IPv6 default gateway address, use the -gw_6 parameter.
```
chsystemip -gw_6 cluster_gateway_address -port cluster_port
```
The cluster_gateway_address variable is the new gateway IP address for the system. The cluster_port variable specifies the port (1 or 2) where the change applies.
To change an IPv4 system subnet mask, use the -mask parameter.
```
chsystemip -mask cluster_subnet_mask -port cluster_port
```
The cluster_subnet_mask variable is the new subnet mask for the system. The cluster_port variable specifies the port (1 or 2) where the change applies.
To set the prefix for IPv6 addresses, use the -prefix_6 parameter.
```
chsystemip -prefix_6 -port cluster_port 
```
The cluster_port variable specifies the port (1 or 2) where the change applies.
To delete all of the IPv4 addresses in the system after you change all addresses to IPv6, use the -noip parameter.
```
chsystem -noip 
```
To delete all of the IPv6 addresses in the system after you change all addresses to IPv4, use the -noip_6 parameter.
```
chsystem -noip_6 
```
Optional: To display the IP routing table, use the lsroute command.
```
lsroute
```
To diagnose configuration node accessibility problems, use the routing table gateway details of IP traffic to a range of IP addresses for each Ethernet port.

Optional: To diagnose IP configuration problems, run the ping command.


ping -srcip4 source_ipv4_address destination_ipv4_address 
     -srcip6 source_ipv6_address destination_ipv6_address