Insys MoRoS ISDN 1.1.1 11-02-06-02-01.005 Manuale Utente

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MoRoS Modem/ISDN 
Functions 
June 06 
21 
address from now on. When the MoRoS receives its IP address dynamically as 
a DHCP client, you must make sure that its current address is known to the 
connected devices as gateway address.
 
MoRoS as DHCP server: 
If the MoRoS is operated as DHCP server, it will assign IP addresses to the connected 
network participants which are configured as DHCP clients on request. The MoRoS keeps 
its set IP address. When the MoRoS has assigned an IP address to a DHCP client, the lease 
times for the assigned IP addresses will be specified in the DHCP configuration. 
   When operated as DHCP server, connected DHCP clients can only be assigned 
new IP addresses after at least half of the Lease Time (1 hour) has expired. 
The new address may differ from the old IP address. 
 
Lease Time is the time, after which the MoRoS queries the connected DHCP clients, and 
checks if the device still responds after half the time has expired. If the device with that 
specific IP address has been replaced (different MAC address), a new IP address will be 
assigned. If needed, devices with a static IP address will not be included in the address 
distribution by the DHCP server. The DHCP server must be configured in a way that it 
doesn't assign addresses from its IP address pool („first IP address“ to „last IP address“), 
which haven’t yet been statically set for other devices. 
6.3  ISDN 
This section describes the configuration of the integrated communication module ISDN-
TA for the MoRoS ISDN. 
 
   The configuration can only take place if neither Dial-In nor Dial-Out is active.