Ubiquiti EdgeRouter Lite [34/58] Dns forwarding

Ubiquiti EdgeRouter Lite [34/58] Dns forwarding
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Chapter 7: Services Tab EdgeRouter
Lite User Guide
Ubiquiti Networks, Inc.
Configure Static MAC/IP Mapping
The Static MAC/IP Mapping screen appears.
Make changes as needed.
- ID The name of this mapping is displayed.
- MAC Address Enter the MAC address of the DHCP
client.
- IP Address Enter the IP address that should be
assigned.
Click Save to apply your changes.
Details
The top section displays the following status information:
Pool Size The total number of IP addresses is displayed.
Leased The number of used IP addresses is displayed.
Available The number of available IP addresses is
displayed.
Subnet The IP address and subnet mask of the DHCP
server are displayed in slash notation.
Range Start The starting IP address of the range is
displayed.
Range End The last IP address of the range is displayed.
Router The default route of the DHCP clients is
displayed. The DHCP clients route all packets to this IP
address, which is the EdgeRouters own IP address in
most cases.
DNS The IP address of the DNS server is displayed.
Status The Enabled/Disabled status of the DHCP server
is displayed.
The rest of the Details tab displays the following:
DHCP Name The name of the DHCP server is displayed.
Subnet The IP address and subnet mask of the DHCP
server are displayed in slash notation.
Make changes as needed to the following options:
Range Start Enter the starting IP address of the range.
Range Stop Enter the last IP address of the range.
Router Enter the default route of the DHCP clients. The
DHCP clients route all packets to this IP address, which is
the EdgeRouter’s own IP address in most cases.
DNS 1 Enter the IP address of the primary DNS server.
Your ISP may provide this information, or you can use
Google’s DNS server at 8.8.8.8.
DNS 2 Enter the IP address of the secondary DNS server.
Domain Enter the domain name for DHCP clients.
Lease Time Enter the period of time (in seconds) that a
DHCP lease should last.
Enable Check the box to enable this DHCP server.
Click Save to apply your changes.
At the bottom of the screen, you can click Delete to
delete the DHCP server and its configuration.
DNS
The EdgeRouter receives all LAN DNS requests and
forwards them to the service providers DNS server. The
EdgeRouter receives responses from the DNS server and
forwards them to the LAN clients.
DNS Forwarding
Cache Size Completed DNS requests are cached so
response time is faster for cached entries, and there is less
traffic traveling to the DNS server. Enter the maximum
number of DNS queries to cache.
Interface Select the appropriate interface that the
EdgeRouter will listen to so it can forward DNS requests.
Add Listen Interface You can select multiple interfaces.
To add another interface for DNS forwarding, click Add
Listen Interface. From the new Interface drop-down
menu, select the appropriate interface.
Click Save to apply your changes, or click Cancel.

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