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SonicOS 5.8.1 Administrator Guide
DHCP Option Numbers
This section provides a list of RFC-defined DHCP option numbers and descriptions:
Option
Number Name Description
2 Time Offset Time offset in seconds from UTC
3 Router N/4 router addresses
4 Time Servers N/4 time server addresses
5 Name Servers N/4 IEN-116 server addresses
6 DNS Servers N/4 DNS server addresses
7 Log Servers N/4 logging server addresses
8 Cookie Servers N/4 quote server addresses
9 LPR Servers N/4 printer server addresses
10 Impress Servers N/4 impress server addresses
11 RLP Servers N/4 RLP server addresses
12 Host Name Hostname string
13 Boot File Size Size of boot file in 512 byte chunks
14 Merit Dump File Client to dump and name of file to dump to
15 Domain Name The DNS domain name of the client
16 Swap Server Swap server addresses
17 Root Path Path name for root disk
18 Extension File Patch name for more BOOTP info
19 IP Layer Forwarding Enable or disable IP forwarding
20 Src route enabler Enable or disable source routing
21 Policy Filter Routing policy filters
22 Maximum DG
Reassembly Size
Maximum datagram reassembly size
23 Default IP TTL Default IP time-to-live
24 Path MTU Aging
Timeout
Path MTU aging timeout
25 MTU Plateau Path MTU plateau table
26 Interface MTU Size Interface MTU size
27 All Subnets Are Local All subnets are local
28 Broadcast Address Broadcast address
29 Perform Mask
Discovery
Perform mask discovery
30 Provide Mask to Others Provide mask to others
31 Perform Router
Discovery
Perform router discovery
32 Router Solicitation
Address
Router solicitation address