User manual

SM User Manual January 2004
Software Release 4.1
DHCP Client Enable/Disable
The operator selects either
• Enable to allow the network DHCP server to assign the NAT Public Network Interface
Configuration IP address, subnet mask, and gateway IP address for this SM.
• Disable to
− disable DHCP server assignment of this address.
− enable the operator to assign this address.
DHCP Server Enable/Disable
The operator selects either
• Enable to
− allow this SM to assign IP addresses, subnet masks, and gateway IP addresses to
attached devices.
− assign a start address for the SM.
− designate how many IP addresses may be leased on the IP Configuration page of
this SM.
• Disable to disallow the SM to assign addresses to attached devices.
DHCP Server Lease Timeout
The operator may adjust this value in the range of 1 to 30 days, based on network performance.
The default value of this parameter is 30 days.
DNS IP Address
The operator selects either
• Obtain Automatically to allow the system to set the IP address of the DNS server.
• Set Manually to allow the operator to set both a preferred and an alternate DNS IP
address.
Preferred DNS IP Address
If the DNS IP Address parameter is set to Set Manually, then the operator sets this parameter as
the preferred address of the DNS server.
Alternate DNS IP Address
If the DNS IP Address parameter is set to Set Manually, then the operator sets this parameter as
the alternate address of the DNS server.
8.4.4 NAT Configuration Buttons with NAT Enabled
Regardless of whether NAT is enabled, the NAT Configuration page provides the following buttons:
Save Changes
When the operator clicks this button, any changes that have been made on the NAT Configuration
page are recorded in flash memory. However, these changes do not apply until the next reboot of
the module.
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