# IP addressing

Here you can specify the IP addressing for your communication server.

## Initial IP addressing

The communication server ships out with the DHCP mode activated, and when the communication server starts up it tries to obtain its IP address from the DHCP server. If the communication server cannot find a DHCP server, it deactivates the DHCP mode within 90 seconds and starts up with the static IP address of the factory setting, i.e. 192.168.104.13.

Note:

The activated DHCP mode helps you to locate the communication server more easily in the IP network. However we recommend that you then assign a static address to the communication server and not to operate it in DHCP mode.

## IP addressing after a first start

The IP addressing after a first start depends on how you have addressed the communication server:

- If you gave the communication server a static address and entered the IP address, subnet mask and gateway manually: your settings are persistently stored on the SIM card. After a first start the communication server will start up with the DHCP mode deactivated and use the static co-ordinates stored on the SIM card.

- If you are operating the communication server with the DHCP mode activated: the DHCP mode is activated after a first start.

## Finding a communication server in the IP network

The simplest way of finding a communication server on the IP network is to use its IP address or host name. You can also download on the software download server the System Search application that allows you to find the communication server within the current subnet.

System Search must not be installed. Just double-click the file to start the application.

## Parameter description

Table 1. Communications server IP addressing (network adapter CPU1)
Parameter | Explanation
DHCP client | The IP address is retrieved from the DHCP server and used in the communication server. The IP address of the communication server is static and has to be entered manually (recommended mode of operation). Note: If you want to operate the integrated DHCP server, the communication server itself must have a static address. See DHCP server view.
IP address | IP address of the communication server (default entry: "192.168.104.13"). Note: If you want to change the IP address of both the communication server and the applications card (Mitel 470 only), always change the IP address of the applications card first!
Subnet mask | Default entry: 255.255.255.0
Gateway | Default gateway of the communication server (default entry: “0.0.0.0”).
MAC address | MAC address of the communication server.

Table 2. Proxy server parameters
Parameter | Explanation
Proxy server address | Host name of the proxy communication server. The proxy server parameters are used to route HTTP requests to the Secure License Server (SLS) via an external proxy server, instead of direct access to the SLS
Proxy web port | Port to communicate with the proxy web server.
Proxy secure web port | Secure web port. Currently, this parameter is not being used.

Table 3. Host and DNS parameters
Parameter | Explanation
Host name | Host name of the communication server for the address allocation in the DNS server or via Multicast DNS (default entry: <Model name>-<MAC address>, for example “Mitel430-00085d8031a6”)
Domain | Domain name (entry is read from the DNS server).
Primary DNS server | Address of the primary DNS server (entry is read from the DNS server).
Secondary DNS server | Address of the secondary DNS server (entry is read from the DNS server).
IP address of the application card | IP address of the Ethernet interface on the applications card.
Multicast DNS support | Activates the integrated Multicast DNS Responder. SIP system terminals need it to be able to find the communication server by themselves and register with it (default setting: ).

Table 4. Ethernet parameters
Parameter | Explanation
Port | Name of the LAN connection on the mainboard (Mitel 415/430) or on the processor card (Mitel 470)
Speed | Transmission speed of the LAN connection (default value: Auto).
Speed status | Current transmission rate range.
MDI type | MDI: For connection with a switch using a patch cable or direct connection with a PC using a crossover cable. MDI-X: For direct connection with a PC using a patch cable (crossover socket) Auto-MDI: Automatic selection of the MDI type based on the devices connected (default value).
MDI status | Current MDI status of the LAN connection.

Table 5. Maximum transmission unit
Parameter | Explanation
MTU (byte) | Maximum Transmission Unit (MTU) - The standard size for IP packets transmitted over Ethernet is 1500 bytes.

Table 6. IP address of the application card
Parameter | Explanation
IP address | IP address of the fitted and active CPU2 or CPU2-S applications card

Parent topic: IP network
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