# Finding the communication server on the IP network

New communication servers connected to the IP network may not be reachable under all circumstances without the prior configuration of the IP addressing. You can learn here how to set up a connection to the new systems.

## First-start response

If a manually entered IP address was already stored at the time of the first start, the communication server deactivates DHCP and DNS and starts with the static IP address.

When you connect a communication server to the IP network for the first time, it attempts to reach an IP address via DHCP:

- If a DHCP server offers the communication server an IP address, the address is used and the communication server attempts to register with the DNS server under the name <Model name>-<MAC address>.

- If the communication server is not offered an IP address, it starts up under its default address 192.168.104.13.

Table 1. Default values for IP addressing
Parameter | Parameter value
IP address | 192.168.104.13
Subnet mask | 255.255.255.0
Gateway address | 0.0.0.0
DHCP | yes
Host name | <Model name>-<MAC address> (for example “Mitel430-00085d8031a6)

## Finding a communication server on the same subnet

The tool System Search contains a function for finding MiVoice Office 400 communication servers on the IP network. The search function finds all connected communication servers on the same subnet. Newly added communication servers can be addressed directly with System Search and opened with WebAdmin. Moreover, you can use System Search to perform an Emergency Upload or to downgrade the system.

## Finding a communication server on another subnet

If System Search is unable to detect a new communication server because it is connected in a different subnet, you have the following possibilities for contacting the communication server:

- If the communication server was able to register successfully with the DNS server, it can be reached under the host name <Model name>-<MAC address> (e. g. Mitel430-00085d8031a6).

- If the communication server has logged on with the default address, you must modify your PC's IP configuration in such a way that the subnet corresponds to that of the communication server. To do so proceed as follows:

- Adjust your PC’s IP address so that it is within the same address range as the communication server’s default address.

- Connect the Ethernet interface directly to the PC or via a switch with the Ethernet interface on the communication server. You can use either a conventional patch cable or a crossover cable to do so.

- Start System Search.

  The communication server is now displayed.

- Use System Search to modify the communication server IP address.

- Reconnect the communication server to the IP network and restart.

- Restore the correct IP configuration on your PC and connect the PC to the IP network.

- Restart System Search.

  The communication server is now visible and accessible under the new IP address.

Parent topic: Product information
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