User`s manual

DCM-604 Cable Modem EMTA Gateway User’s Manual
14
With this function activated, your cable service provider’s DHCP server
provides one IP address for the DCM-604, and the DCM-604’s DHCP server
provides IP addresses, starting at the address you set in Starting Local
Address field, to your PCs. A DHCP server leases an IP address with an
expiration time.
To set the maximum number of PCs to which the DCM-604 will issue IP
addresses, enter it in the Number of CPEs box and then click Apply. (CPE is
another term sometimes used for PC.)
The table on the bottom of this page shows the information of DHCP clients
including the IP and MAC addresses of each PC. Since MAC addresses are
unique and permanently fixed into hardware, you can identify any PC listed by
its MAC address. The DCM-604 provides leases for 3600 seconds (default),
and has an automatic renewal mechanism that will keep extending a lease as
long as the associated PC remains active.
You can cancel an IP address lease by selecting it in the DHCP Client Lease
Info list and then clicking the Force Available button. If you do this, you may
have to perform a DHCP Renew on that PC, so it can obtain a new lease.
5.3.3 Backup
This page allows you to save your current settings locally on your PC, or restore
previously saved settings.
5.4 Advanced
The Advanced page allows you to enable/disable some advanced features of
the DCM-604.