Dell 2350 Wireless Broadband Router - Manual (Page 163)

Users can register a domain name from dyndns.org. With this domain, it allows user enter the domain name instead of entering IP address.
DDNS will map IP address to user’s domain name.
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Access Control Settings
The Access Control Settings feature allows you to control which local client computer can or can not access the network through the router. The Dell Wireless 2350
broadband Router by default allows any local client computer to access the network. There are two tables for Access Control Settings, The Grant Access Table and
the Deny Access Table. Each table is able to support up to 32 entries. Only one table can be active at a time. Selecting the checkbox for Grant Access Table will
disable the Deny Access Table and vice versa. The MAC Access control settings apply to wireless clients only and not to wired clients.
Access Control Settings