Perle Systems PERLE P850 - Manual (Page 52)

Applications
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devices attached to the DHCP Server to be set.
The number of addresses to be assigned must also
be specified to a maximum of 253.
With the DHCP Services and IP Address Pool defined, devices may be
attached to the network (up to the maximum specified) and they will be
automatically configured.
When setting up a router as a DHCP server that will have both a
DNS server on the internal network and a remote connection to
another DNS server (for example, through an ISP), then the local
DNS server should be set as the primary DNS and the external
DNS server as the secondary DNS.
7
DNS Set-Up
Location: Main
Ä Configuration
Ä Application Set up
ÄDHCP set-up
ÄDNS set-up
ÄPrimary DNS
-IP address local DNS server
ÄSecondary DNS
-IP addr external DNS server
Figure 2 - 9 Local + External DNS Server Configuration
Internet Service
Provider
Local
DNS Server
(Primary)
External
DNS Server
(Secondary)