User`s guide

MBR W40 – Admin’s Manual
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Figure 107: Add or Edit a DNS Entry
 To edit the host name or IP address of an entry:
1. Click the Edit button that appears in the Action column. The DNS Entry screen appears.
If the host was manually added to the DNS Table, then you may modify its host name and/or IP address,
otherwise you may only modify its host name.
2. Click OK to save the settings.
 To remove a host from the DNS table:
Click the Delete button that appears in the Action column. The entry is removed from the table.
3.7.6 DHCP Server
Your gateway's Dynamic Host Configuration Protocol (DHCP) server makes it possible to easily add computers that are
configured as DHCP clients to the local network. It provides a mechanism for allocating IP addresses and delivering
network configuration parameters to such hosts. W40 default DHCP server is the LAN bridge. A client (host) sends out
a broadcast message on the LAN requesting an IP address for itself. The DHCP server then checks its list of available
addresses and leases a local IP address to the host for a specific period of time while simultaneously designating this IP
address as `taken'. At this point the host is configured with an IP address for the duration of the lease. The host can
choose to renew an expiring lease or let it expire. If it chooses to renew a lease, then it will also receive current
information about network services, as it did with the original lease, allowing it to update its network configurations
to reflect any changes that may have occurred since it first connected to the network. If the host wishes to terminate
a lease before its expiration, it can send a release message to the DHCP server, which will then make the IP address
available for use by others.