Advanced IP configuration
To configure additional settings for IP addresses, navigate to .
Global settings
The Global Settings area contains the fields and entries that make up the global configuration, which then become the default settings for all interfaces.
The following table describes the fields on this page:
| Global settings | Default | Description |
|
IP Reassembly Timer (seconds) | 15 |
This field sets the time before which the server discards an incomplete IP datagram. |
|
Ignore ICMP Echo Requests | No (empty) |
When selected, this option instructs the system not to respond to Internet Control Message Protocol (ICMP) echo requests. |
|
IP MTU for Off- Subnet Transmits (bytes) | 1500 |
This field specifies the maximum IP packet size in use when transmitting to a different subnet. The valid range is 68 to 9600 bytes. For IPv6 traffic, the effective MTU is 1280 bytes when this option is configured to be less than 1280. |
| TCP Keep Alive | Yes (filled) |
When selected, this option instructs the system to send a keep alive packet when it has received no data or acknowledgment packets for a connection within the specified timeout period. |
|
TCP Keep Alive timeout (seconds) | 7200 |
This field specifies the number of seconds to keep a connection alive. |
| TCP MTU (bytes) | 1500 |
This field specifies the size of the maximum transmission unit (MTU) in use for TCP packets when transmitting to a locally configured subnet. The valid range is 68 to 9600 bytes. For IPv6 traffic, the effective MTU is 1280 bytes when this option is configured to be less than 1280. |
|
Other Protocol MTU (bytes) | 1500 |
This field specifies the size of the MTU for protocols other than TCP when transmitting to a locally configured subnet. The valid range is 68 to 9600 bytes . For IPv6 traffic, the effective MTU is 1280 bytes when this option is configured to be less than 1280. |
|
ARP Cache Timeout (seconds) | 60 |
This field controls the time before which the server removes an unused ARP entry from the caching table. |
|
Ignore ICMP Redirect | No (empty) | This field specifies whether to ignore ICMP redirects. |
| Port |
ag1 - agX |
This field lists the name of each currently configured aggregation port (interface) in the server/cluster. |
| Current Settings |
This field indicates whether the aggregation port uses the default (global) settings, or customized settings. If the aggregation port uses customized settings, the details button appears. Click on the details button to edit the customized configuration. |
To customize the global settings, specify the values to use for the global configuration settings by changing the values of the fields in the Global Settings area. All aggregations (interfaces) use the global settings by default. Click apply to save the changes.
To restore the global settings to the factory default values, click reset.
Interface settings
To customize settings for an individual aggregation port (interface), select it in the Ports field and click customize. The Advanced IP Per-Port Configuration page appears.
The following table describes the fields on this page:
| Per-port settings | Default settings |
| Ignore ICMP Echo Requests | No (empty) |
| IP MTU for Off-Subnet Transmits (bytes) | 1500 |
| TCP MTU | 1500 |
| Other Protocol MTU | 1500 |
Enter the new values in the fields, and click OK. The new settings override the global settings.
To restore the settings of an interface to the global configuration, select an interface in the Ports field, and then click restore. The settings for the interface revert to the default (global settings).
CLI commands
Use the ipadv command to view or change these settings. It is also possible to configure an MTU value on a per-route basis using the mtu command.