dhcp−lease−time: This is the lease time in seconds. For 7 days = (60
sec/min)*(60min/hr)*(24hrs/day)*(7days ) = 604800 sec.
◊
tftp−server: The IP address of the TFTP server (in this case it is the IP
address of the server where CNR lives)
◊
◊ time−offset: The number of seconds from GMT time. PTS time = −8hr =
(3600 sec/hr)*(8hrs) = −28800. See the time offset conversion table.
◊
time−server: This is the IP address of the Time of Day (ToD) server.◊
packet−siaddr: The IP address of the TFTP server.◊
routers: This is the primary IP address of the cable interface on the CMTS.◊
packet−filename: This is the name of the DOCSIS configuration file that
will be used for the policy.
◊
To configure these options go to the Available column, select the option you want to
add in the following way:
To get to tftp−server scroll up the available window and click on + next to
Servers option group, then click on tftp−server and click on the add > > >
button and enter the value in the Option value(s) field.
◊
To get to time−offset scroll down to time−offset and click the add > > >
button. In the Option value(s) field type the correct value in seconds.
◊
To get to timeserver scroll down and click on timeserver. Click the add
>>> button. In the "Option value(s)" field type the correct ip address.
◊
To get packet−siaddr scroll up and click on the + next to DHCP Packet
Fields select packet−siaddr and click the add >>> button. In the Option
value(s) field type the correct ip address.
◊
To get to routers scroll up and click on + next to Basic c and select routers.
Click the add >>> button and enter the corresponding ip address in the
Option value(s) field.
◊
To get to packet−file−name go to DHCP Packet Fields and select
packet−file−name. Click the add >>> button and enter the name of the
DOCSIS config file in the Option value(s) field. Check the Always send to
DHCP clients check−box.
◊
12.
Click the OK button at the bottom of the Edit Options window when you are done.13.
Click Yes in the Network Registrar window that will pop up asking to commit the
changes.
14.
Click on each entry on the active field of the DHCP@localhost Properties window
and verify the value in the Value(s) field. If you made a mistake, click on the Edit
Options... button and change the mistaken option.
15.
Click the Close button of the DHCP@localhost Properties window.16.
Q. What is a scope in CNR and how do I configure it?
A scope contains a set of IP addresses for part of or an entire subnet, and an associated policy
that tells DHCP how to operate on these addresses. You must define at least one scope for
each subnet on which you want a DHCP server to supply IP addresses to DHCP clients. Note
that you can have more than one scope per subnet, and you can combine secondary subnets as
well. For more information, see Using Network Registrar or the online help.
To create a scope do the following:
From the Server Manager window, select the DHCP server to which you want to
add a scope.
1.
Click the Add toolbar button to display the Add Scope dialog box.2.
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