Dhcp Server - Teldat -3Ge Quick Manual

2 Configuration
request-dialin
interface rcellular3
hello 9
exit
;
exit

2.7 DHCP Server

A DHCP server is configured on the router to respond to requests for IP parameters from the Teldat-3Ge .
To avoid conflicts with other DHCP servers on the company network, we must restrict the Teldat router DHCP ser-
vice to only accept requests from the registered Teldat-3Ge so that, in turn, the Teldat router is always selected.
To achieve this, the DHCP configuration is as follows:
protocol dhcp
; -- DHCP Configuration --
server
; -- DHCP Server Configuration --
;
subnet teldatsubnet 0 network 172.24.0.0 255.255.0.0
subnet teldatsubnet 0 bootfile fwethant.img
subnet teldatsubnet 0 next-server 172.24.78.29
subnet teldatsubnet 0 router 172.24.78.29
;
enable
;
host eth-ant 0 client-id asc teldat
host eth-ant 0 fixed-ip 172.24.78.28
host eth-ant 0 option 43 asc antenna&sipport=5060&localphone=607081119&
ntpserver=80.26.59.78
;
exit
;
exit
;
The host eth-ant 0 option 43 asc antenna command specifies the option the Teldat-3Ge expects to receive from
the server in order to accept the received address ("antenna" in ASCII). The "client-id" command gives the
"client-id" the router expects to receive ("teldat" in ASCII).
Other important parameters that can be configured through option 43 are as follows:
• "sipport=" , SIP agent UDP port in the device.
• "localphone=" , telephone number the GSM external call is transferred to.
• "sipserver=" , SIP-proxy IP address, if you want this to be a different device from the Teldat router. If you don't set
this IP address, the SIP-proxy is the default route IP address assigned to the Teldat-3Ge by default.
• "ntpserver=" , NTP server IP address the device uses to synchronize the time.
• "ntpinterval=" , time between synchronization requests. Default is 3600.
• "ntpoffset=" , offset time corresponding to the time zone where the device is installed. Default is 2 (GMT +2). From
software version 1.09 for the Teldat-3Ge, this parameter is ignored and is substituted for the " timezone" parameter.
• "timezone=" , this specifies the time zone the device is in. The default value is the Paris/Madrid zone specified as
"timezone=CET-1CEST,M3.5.0/2,M10.5.0/3" .
You can also see that the subnet teldatsubnet 0 bootfile fwethant.img command and the subnet teldatsubnet 0
next-server 172.24.78.29 command specify, respectively, the Teldat-3Ge firmware file name and the access IP ad-
dress for the TFTP server the Teldat-3Ge must go to in order to download the firmware.
8
Teldat S.A.
Teldat-3Ge Quick Guide