Configuring the SmartServer IP Address and Hostname (Release 3.4 to 4.1)

For SmartServer 4.2 and higher, see Configuring the SmartServer IP Address and Hostname.

For SmartServer 3.3 and prior, see Configure Your SmartServer (Release 3.3 and Prior)

You can configure IP network settings for the SmartServer from the Network tab of SmartServer Configuration page as described in this section. 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.

The Network tab 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.

LON communications requirement for static IP address allocation

If you are only using a single Ethernet port (the LAN or WAN port), but 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 the default gateway IP address only when needed.  At least one default 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 communication will work properly and some may not always work as expected. 

Typically, DHCP automatically assigns a default 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.

WANLANSupport

Static

Set up default gateway IP address 

Static

Do not specify default gateway IP address (see Note 1)

Specify routing paths only if you need to work with devices that are not on the same IP subnet as this port

Supported

DHCP (see Note 2)


Static

Do not specify default gateway IP address (see Note 1)

Specify routing paths only if you need to work with devices that are not on the same IP subnet as this port

Supported

DHCP  (see Note 2)

DHCP (see Note 2)Supported
StartupStartupNOT supported
StartupDHCP (see Note 2) or StaticNOT supported
DHCP (see Note 2) or StaticStartupNOT supported

1. If you are using static IP address for both WAN and LAN, and you configured a default IP address for both, then the SmartServer will use the last default IP address as the default IP address. In this case, you may experience communication issues as messages intended for the WAN port may get mistakenly re-directed to the LAN port.

2. In most cases, DHCP will automatically assign a default gateway IP address. In some cases, you may need to manually add a default gateway IP address when using DHCP. If you experience any problems, contact your IT department.

3. Do not use the same IP subnet for both the WAN and LAN ports.

4. In some cases, you may need to specify static routes. In this case, you may need to re-add the routes when you re-image or restore to factory settings.

Optionally adding Routing table entries - for most users this is not necessary. This is only necessary 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 not on this ports IP subnet. 

To check the SmartServers current routing table entries

Print current routing table entries
route -n

To add a routing table entry

Example: Adding a routing table entry
route add -net 192.167.3.0  netmask  255.255.254.0  gw  192.167.3.10 eth1

To delete a routing table entry

Example: Deleting a routing table entry
route del -net 192.167.3.0 netmask 255.255.254.0

The SmartServer hostname is displayed 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 at the bottom of the Network Configuration page to save changes. A system reboot is required for changes to take effect.