Akuvox R20 Series - Card Setting; 2.6.2. Obtain and Add Card; 2.6.3. Door Card Management

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2.2. Network Setting
Go to Network->Basic, dynamically or statically to obtain
address.
2.2.1. DHCP
R20 series uses DHCP by default, it will get IP address,
Subnet Mask, Default Gateway and DNS server address from
DHCP server automatically.
2.2.2. Static IP
If selected, you could manually set IP address, Subnet Mask,
Default Gateway and DNS server. The figure below shows
static IP setting.