You can configure IP network settings for the SmartServer from the SmartServer Configuration page Network tab as described in this section. The Network tab appears as the default SmartServer Configuration page. Once the network settings are configured for the SmartServer system, then the System tab will appear as the default.

If you cannot access the SmartServer Configuration page, you can configure the SmartServer IP address using the SmartServer console, SSH or SFTP. See Configuring the SmartServer IP Address Using the Console for more details on making the changes using the console, SSH or SFTP.

This section consists of the following:

Setting the SmartServer Hostname

The SmartServer Network Configuration page displays the SmartServer hostname in the Hostname field and can be updated as needed if you are using self-signed certificates (not if you are using built-in, signed certificates). If you change the hostname, you must also get new SSL certificates, since they are linked to the hostname. Refer to the Security Setting - Signed Certificates section for more information about using certificates. 

Click Update to save changes. A system reboot is required for changes to take effect.

Setting the LAN and WAN Interfaces

The SmartServer Network Configuration page displays the LAN and WAN interface, current IP address, network mask (also known as the subnet mask), and default gateway. It also provides the option to set the network mode: Startup Mode - DHCP with rapid fallback to static, DHCP, or Static IP Address. The default setting is Startup Mode - DHCP with rapid fallback to static. Click the mode setting to change the network mode. 

Select DHCP or Static IP Address as appropriate for your system from the list of modes. To automatically request and receive an IP address from a DHCP server, select DHCP. To assign a static IP address, select Static IP Address.

Select DHCP if you network uses DHCP for network device IP address assignment.  For optimal performance do not select Startup Mode - DHCP with rapid fallback to static. Selecting DHCP in a network using DHCP ensures that the SmartServer always looks for an IP address from the local DHCP server, instead of quickly falling back to its static IP address. In this configuration, a SmartServer that reverts to a static IP address will no longer function as intended.

The Startup Mode - DHCP with rapid fallback to static is global for eth0 and eth1. Therefore, if you configure the eth0/eth1 to DHCP, then eth1/eth0 is no longer in Startup Mode - DHCP with rapid fallback to static. Changing one to DHCP, automatically sets the other to DHCP, and similarly for Startup Mode. Both LAN and WAN interfaces must be changed so neither is in Startup Mode - DHCP with rapid fallback to static.

If you are only using a single Ethernet port (the LAN or WAN port, not both ports), and you are using a LON U60 interface with a static IP address for eth0 or eth1, then you must set the LAN Interface Gateway field for that port (LAN or WAN). For example, if you are using the LAN port, then set the unused port to Startup Mode (see the example below).

If you are using both the LAN and WAN port, then you need to assign a default gateway IP address only when needed.  At least one gateway IP address needs to be used (either assigned by DHCP or by manually adding to a static IP address). Assigning gateway IP addresses to both ports may cause issues with Ethernet communication. Some Ethernet communications will work properly and others may not. 

Typically, DHCP automatically assigns a gateway IP address. All devices on a port that have the same IP subnet as the SmartServer on the same port do not need a gateway IP address. The gateway IP address is only needed if a destination device is on a different IP subnet than one configured for the SmartServer Ethernet port.

Only the ports that you are using need to be changed. For example, if you are using only the LAN port, then you only need to change the LAN port and not the WAN port. Refer to the table below when using both LAN and WAN ports.

Click Update to save changes. A system reboot is required for changes to take effect.

Setting Routing Table Entries

You can optionally add routing table entries if you are using both the WAN and LAN, the gateway IP address is not assigned to this port, and you need to access a device that is not on this port's IP subnet. 

To check the SmartServer's current routing table entries, enter the following command:

route -n

To add a routing table entry, enter the following command:

route add -net 192.167.3.0  netmask  255.255.254.0  gw  192.167.3.10 eth1

To delete a routing table entry, enter the following command:

route del -net 192.167.3.0 netmask 255.255.254.0