Configuring the Internal Port
The internal port connects to the local area network (LAN). The internal port settings are configured when you run the setup wizard from the serial console as part of the installation procedure. You can use the System > Network pages to make changes to the configuration.
To modify the internal port configuration:
- Select System > Network > Internal Port > Settings to display the configuration page.
- Complete the configuration as described in table.
- Save your changes.
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Settings |
Guidelines |
|---|---|
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IPv4 Settings |
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IP Address |
Assign an IP address. You must assign an IPv4 address to the internal interface. An IP address is an identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP protocol route messages based on the IP address of the destination. The format of an IPv4 address is a 32-bit numeric address written as four numbers separated by periods. Each number can be 0 to 255. |
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Netmask |
Assign a netmask. A netmask indicates which part of an IP address indicates network identification and which part indicates the host identification. For example, the IP address and netmask 10.20.30.1 255.255.255.0 (or 10.20.30.1/24) refer to all the hosts in the 10.20.30.0 subnet. The IP address and netmask 10.20.30.1 255.255.255.255 (or 10.20.30.1/32) refer to a single host. |
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Default Gateway |
Specify the IPv4 address for the default gateway for the routing domain to which the device belongs. A gateway is the router that resides at the point of entry to the current routing domain, often called the default gateway. |
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IPv6 Settings |
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Enable IPv6 / Disable IPv6 |
Disabled by default. Enable to support access from IPv6 endpoints. When you enable IPv6, the system acquires a link local address. If you switch from enabled to disabled, the system clears the link local address. |
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Link Local Address |
Display the auto configured link local address (after you have enabled and saved the IPv6 configuration). |
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IPv6 Address |
Specify a routable IPv6 address, such as a global unicast address that your network plan has provisioned for this host and interface. Automatic configuration methods are not supported. You must specify the appropriate address manually. |
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Prefix Length |
Specify how many of the higher order contiguous bits of the IPv6 address comprise the prefix (the network portion of the IPv6 address). The default is 64. |
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Gateway |
Specify the IPv6 address for the default gateway for the routing domain to which the device belongs. A gateway is the router that resides at the point of entry to the current routing domain, often called the default gateway. |
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Advanced Settings |
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MAC Address |
Display the MAC address for the interface. |
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Link Speed |
Specify the speed and duplex combination for the interface. If you run SNMP_GET and then change the Link Speed value, you must wait at least 5 minutes after submitting the change before running SNMP_GET again. |
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ARP Ping Timeout |
(IPv4 only) Specify how long the system should wait for responses to Address Resolution Protocol (ARP) requests before timing out. Cluster nodes send ARP requests to the gateways of other nodes to determine if they are properly communicating with one another. If you have not deployed a cluster, the system does not use this setting. If the node belongs to a cluster, the timeout interval that you specify is synchronized across the cluster. In multisite clusters, you can override this setting for the individual nodes in the cluster using options in the System > Clustering page. Use caution when changing this setting in active/passive clusters, however, because the system also uses the ARP Ping Timeout setting on the Internal tab as a failover timer for the VIP. |
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MTU |
Specify the maximum transmission unit. If IPv6 is enabled, the valid range is 1280 to 1500. If IPv6 is not enabled, the valid range is 576 to 1500. We recommend you retain the default MTU setting (1500) unless you must change the setting for troubleshooting purposes. |
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Default VLAN ID |
(Optional) Specify the default VLAN ID for the traffic of this port. When this parameter is set, all the traffic on this interface is subsequently tagged with the set VLAN ID and also accepts only incoming traffic with the same tag. Necessary changes are required on the connected switch port to handle bi-directional tagged traffic. - If default VLAN ID is set incorrectly or the connected switch port is not configured accordingly, the interface can become unreachable. |