Modifying Host and Network Interface Settings : Configuring network interfaces
  
Configuring network interfaces
You can view and modify network interfaces in the Administration > Networking: Network Interfaces page.
To display and modify the configuration for network interfaces
1. Choose Administration > Networking: Network Interfaces to display the Network Interfaces page.
The Network Interfaces page is divided into four areas: Primary Interface, Auxiliary Interface, Main IPv4 Routing Table, and Main IPv6 Routing Table.
Network Interfaces page
2. Under Primary Interface, complete the configuration as described in this table.
Control
Description
Enable Primary Interface
Enables the appliance management interface, which can be used for both managing the SteelHead and serving data for a server-side out-of-path (OOP) configuration.
Obtain IPv4 Address Automatically
Select this option to automatically obtain the IP address from a DHCP server. A DHCP server must be available so that the system can request the IP address from it.
The primary and in-path interfaces can share the same network subnet. The primary and auxiliary interfaces can’t share the same network subnet.
Enable IPv4 Dynamic DNS
Select this option to send the hostname with the DHCP request for registration with Dynamic DNS. The hostname is specified in the Administration > Networking: Host Settings page.
Specify IPv4 Address Manually
Select this option if you don’t use a DHCP server to set the IPv4 address. Specify these settings:
• IPv4 Address—Specify an IP address.
• IPv4 Subnet Mask—Specify a subnet mask.
• Default IPv4 Gateway—Specify the default gateway IPv4 address. The default gateway must be in the same network as the primary interface. You must set the default gateway for in-path configurations.
Obtain IPv6 Address Automatically
Select this option to automatically obtain the IP address from a DHCP server. A DHCP server must be available so that the system can request the IP address from it.
The primary and in-path interfaces can share the same network subnet. The primary and auxiliary interfaces can’t share the same network subnet.
Enable IPv6 Dynamic DNS
Select this option to send the hostname with the DHCP request for registration with Dynamic DNS. The hostname is specified in the Administration > Networking: Host Settings page.
Specify IPv6 Address Manually
Select this option and specify these settings to set an IPv6 address.
• IPv6 Auto-Assigned—Displays the link-local address that is automatically generated when IPv6 is enabled on the base interfaces.
• IPv6 Address—Specify an IP address using this format: eight 16-bit hex strings separated by colons, 128-bits. For example:
2001:38dc:0052:0000:0000:e9a4:00c5:6282
 
You don’t need to include leading zeros; for example:
2001:38dc:52:0:0:e9a4:c5:6282
 
You can replace consecutive zero strings with double colons (::). For example:
2001:38dc:52::e9a4:c5:6282
 
• Add new IPv6 Address—Specify a new IP address.
• IPv6 Prefix—Specify a prefix. The prefix length is 0 to 128, separated from the address by a forward slash (/). In this example, 60 is the prefix:
2001:38dc:52::e9a4:c5:6282/60
 
• IPv6 Gateway—Specify the gateway IP address. The gateway must be in the same network as the primary interface.
Speed and Duplex
Speed—Select a speed from the drop-down list. The default value is Auto.
Duplex—Select Auto, Full, or Half from the drop-down list. The default value is Auto.
If your network routers or switches don’t automatically negotiate the speed and duplex, be sure to set them manually.
The speed and duplex must match (LAN and WAN) in an in-path configuration. If they don’t match, you might have a large number of errors on the interface when it’s in bypass mode, because the switch and the router aren’t set with the same duplex settings.
MTU
Specify the MTU value. The MTU is the largest physical packet size, measured in bytes, that a network can send. The default value is 1500.
 
3. Under Auxiliary Interface, complete the configuration as described in this table.
Control
Description
Enable Aux Interface
Enables an auxiliary interface, which can be used only for managing the SteelHead. This interface can’t be used for an out-of-path (OOP) SteelHead data service. Typically, this interface is used for device-management networks.
Obtain IPv4 Address Automatically
Select this option to automatically obtain the IP address from a DHCP server. A DHCP server must be available so that the system can request the IP address from it.
The primary and in-path interfaces can share the same subnet. The primary and auxiliary interfaces can’t share the same network subnet.
Enable IPv4 Dynamic DNS
Select this option to send the hostname with the DHCP request for registration with Dynamic DNS. The hostname is specified in the Administration > Networking: Host Settings page.
Specify IPv4 Address Manually
Select this option if you don’t use a DHCP server to set the IPv4 address. Specify these settings:
• IPv4 Address—Specify an IP address.
• IPv4 Subnet Mask—Specify a subnet mask.
Obtain IPv6 Address Automatically
Select this option to automatically obtain the IP address from a DHCP server. A DHCP server must be available so that the system can request the IP address from it.
• Enable IPv6 Dynamic DNS—Sends the appliance hostname (Host Settings page) with the DHCP request.
The primary and in-path interfaces can share the same subnet. The primary and auxiliary interfaces can’t share the same network subnet.
Enable IPv6 Dynamic DNS
Select this option to send the hostname with the DHCP request for registration with Dynamic DNS. The hostname is specified in the Administration > Networking: Host Settings page.
Specify IPv6 Address Manually
Select this option and specify these settings to set an IPv6 address.
• IPv6 Auto-Assigned—Displays the link-local address that is automatically generated when IPv6 is enabled on the base interfaces.
• Add new IPv6 Address—Specify a new IP address.
Speed and Duplex
Speed—Select a speed from the drop-down list. The default value is Auto.
Duplex—Select Auto, Full, or Half from the drop-down list. The default value is Auto.
If your network routers or switches don’t automatically negotiate the speed and duplex, be sure to set them manually.
The speed and duplex must match (LAN and WAN) in an in-path configuration. If they don’t match, you might have a large number of errors on the interface when it’s in bypass mode, because the switch and the router aren’t set with the same duplex settings.
MTU
Specify the MTU value. The MTU is the largest physical packet size, measured in bytes, that a network can send. The default value is 1500.
4. Click Apply to apply your changes to the running configuration.
5. Click Apply to save your changes permanently.
After you apply your settings, you can verify whether changes have had the desired effect by reviewing related reports. After this verification, you can write the active configuration that is stored in memory to the active configuration file (or you can save it as any filename you choose). For details on saving configurations, see Managing configurations.
To configure routes for IPv4
• Under the Main IPv4 Routing Table you can configure a static routing in the main routing table for out-of-path deployments or if your device management network requires static routes.
You can add or remove routes from the table list as described in this table.
Control
Description
Add a New Route
Displays the controls for adding a new route.
Destination IPv4 Address
Specify the destination IP address for the out-of-path appliance or network management device.
IPv4 Subnet Mask
Specify the subnet mask.
Gateway IPv4 Address
Specify the IP address for the gateway. The gateway must be in the same network as the primary or auxiliary interface you are configuring.
Interface
Select an interface for the IPv4 route from the drop-down menu.
Add
Adds the route to the table list.
Remove Selected
Select the check box next to the name and click Remove Selected.
The Management Console writes your configuration changes to memory.
To configure routes for IPv6
• Under Main IPv6 Routing Table, you can configure static routing in the main routing table if your device-management network requires static routes.
You can add or remove routes from the table list as described in this table.
Control
Description
Add a New Route
Displays the controls for adding a new route.
Destination IPv6 Address
Specify the destination IP address.
IPv6 Prefix
Specify a prefix. The prefix length is from 0 to 128 bits, separated from the address by a forward slash (/).
Gateway IPv6 Address
Specify the IP address for the gateway. The gateway must be in the same network as the primary or auxiliary interface you are configuring.
Interface
Select an interface for the IPv6 route from the drop-down menu.
Add
Adds the route to the table list.
Remove Selected
Select the check box next to the name and click Remove Selected.