Copyright © 2006 – STM Norway AS
Publication no. 101557, Rev. T, November 3
th
, 2006
Page 40
To view the DHCP server configuration and, if enabled, the DHCP client table, use the CLI command
ip
dhcp show.
Example:
# ip dhcp show
DHCP Server Status
-------------------------------------------
Server Status : Enabled
Server IP address : 192.168.0.1
Server IP address range :
Starting IP address : 192.168.0.1
Ending IP address : 192.168.0.254
No of IP addresses excluded : 1
Excluded IP address range :
Starting IP address : 192.168.0.254
Ending IP address : 192.168.0.254
Lease Time : 1 Day 0 Hours 0 Minutes 0 Seconds
DHCP Client Table
-----------------
Host Name IP Address MAC Address Lease expires
Test
192.168.0.2 1>00:06:5b:e0:6f:48 In less than 15 minutes
#
The DHCP client table is only displayed when the DHCP server is enabled. The table will display the
host name, the allocated IP address, the host MAC address and the address lease expiration time for each
computer registered by the DHCP server.
Until the terminal has acquired lock on the forward link and received the system time via
the Time and Date Table (TDT) from the Gateway, it will have no information of the
current time. The DHCP server will in this situation only lease IP addresses to the LAN
hosts for 15 minutes until the system time is set. The message
Lease expires in less
than 15 minutes
will be displayed in the DHCP client table.
7.2
Changing the SatLink Terminal LAN Interface IP address
If the IP address of the SatLink Terminal LAN Interface is changed, the IP addresses of all end-user
devices that are connected to the SatLink Terminal LAN must be updated correspondingly.
This also applies to those end-user devices that have obtained their IP addresses automatically from the
DHCP server. As the end-user devices will not normally issue a request to the DHCP server before the
lease-time of their IP addresses has expired, an IP address update of these devices must be manually
triggered by the end-user.
For example, to trigger a PC running Microsoft Windows OS to request a new IP address from the DHCP
server, the end-user can issue the command
ipconfig /renew
in the DOS command window.
If the end-user device does not have provisioned means for manually triggering a DHCP request for IP
address update, please power off and on again the end-user device. This will normally result in the end-
user device requesting the Terminal DHCP server for an IP address as part of the end-user device
initialisation process.
