5.2.2. Custom Options
Adding a Custom Option to the DHCP server definition allows the administrator to send specific
pieces of information to DHCP clients in the DHCP leases that are sent out.
An example of this is certain switches that require the IP address of a TFTP server from which they
can get certain extra information.
Custom Option Parameters
The following parameters can be set for a custom option:
Code
This is the code that describes the type of information being sent to the client. A large list of
possible codes exists.
Type
This describes the type of data which will be sent. For example, if the type is String then the
data is a character string.
Data
This is the actual information that will be sent in the lease. This can be one value or a
comma separated list.
The meaning of the data is determined by the Code and Type. For example, if the code is set
to 66 (TFTP server name) then the Type could be String and the Data would then be a site
name such as tftp.mycompany.com.
There is a large number of custom options which can be associated with a single DHCP server and
these are described in:
RFC 2132 - DHCP Options and BOOTP Vendor Extensions
The code is entered according to the value specified in RFC 2132. The data associated with the code
is first specified in NetDefendOS as a Type followed by the Data.
5.2.2. Custom Options
Chapter 5. DHCP Services
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Summary of Contents for NetDefend DFL-1660
Page 28: ...1 3 NetDefendOS State Engine Packet Flow Chapter 1 NetDefendOS Overview 28 ...
Page 88: ...2 6 3 Restore to Factory Defaults Chapter 2 Management and Maintenance 88 ...
Page 166: ...3 10 DNS Chapter 3 Fundamentals 166 ...
Page 254: ...4 7 5 Advanced Settings for Transparent Mode Chapter 4 Routing 254 ...
Page 268: ...5 4 IP Pools Chapter 5 DHCP Services 268 ...
Page 368: ...6 7 Blacklisting Hosts and Networks Chapter 6 Security Mechanisms 368 ...
Page 390: ...7 4 7 SAT and FwdFast Rules Chapter 7 Address Translation 390 ...
Page 414: ...8 3 Customizing Authentication HTML Pages Chapter 8 User Authentication 414 ...
Page 490: ...9 8 6 Specific Symptoms Chapter 9 VPN 490 ...
Page 528: ...10 4 6 Setting Up SLB_SAT Rules Chapter 10 Traffic Management 528 ...
Page 544: ...11 7 HA Advanced Settings Chapter 11 High Availability 544 ...
Page 551: ...12 3 5 Limitations Chapter 12 ZoneDefense 551 ...
Page 574: ...Default 512 13 9 Miscellaneous Settings Chapter 13 Advanced Settings 574 ...
Page 575: ...13 9 Miscellaneous Settings Chapter 13 Advanced Settings 575 ...