User guide

Canopy System User Guide Configuring an SM for the Destination
pmp-0229 (Mar 2013)
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• Disabled to disallow the SM to assign addresses to attached devices.
The implementation of NAT with DHCP server is illustrated in Figure 51 on Page 37.
The implementation of NAT with DHCP client (DHCP selected as the Connection Type of the
WAN interface) and DHCP server is illustrated in Figure 49 on Page 160. The implementation of
NAT without DHCP is illustrated in Figure 52 on Page 163.
LAN DHCP Server, DHCP Server Lease Timeout
Based on network performance, enter the number of days between when the DHCP server assigns
an IP address and when that address expires. The range of values for this parameter is 1 to 30
days. The default value is 30 days.
LAN DHCP Server, DHCP Start IP
If you will be enabling DHCP Server below, set the last byte of the starting IP address that the
DHCP server will assign. The first three bytes are identical to those of the NAT private IP address.
LAN DHCP Server, Number of IPs to Lease
Enter how many IP addresses the DHCP server is allowed to assign. The default value is 50
addresses.
LAN DHCP Server, DNS Server Proxy
This parameter enables or disables advertisement of the SM as the DNS server. On initial boot up
of an SM with the NAT WAN interface configured as DHCP or PPPoE, the SM module will not
immediately have DNS information. With DNS Server Proxy disabled, the clients will renew
their lease about every minute until the SM has the DNS information to give out. At this point the
SM will go to the full configured lease time period which is 30 days by default. With DNS
Server Proxy enabled, the SM will give out full term leases with its NAT LAN IP as the DNS
server.
LAN DHCP Server, DNS IP Address
Select either
• Obtain Automatically to allow the system to set the IP address of the DNS server.
• Set Manually to enable yourself to set both a preferred and an alternate DNS IP address.
LAN DHCP Server, Preferred DNS IP Address
Enter the preferred DNS IP address to use when the DNS IP Address parameter is set to Set
Manually.