Overview Servers and Relays IP Addresses Macros Options Create Modify Delete Duplicate Standard Options How To.. Menus Index |  |  | # Standard Options The standard DHCP options are defined by a short name (or tag), which is a mnemonic. The names are listed below with their code number, name, data type, and description.
Code | Name | Type | Description
1 | Subnet | IP | Subnet mask, dotted Internet address
2 | UTCoffst | Number | Coordinated universal Number offset (seconds)
3 | Router | IP | List of routers
4 | Timeserv | IP | List of RFC-868 servers
5 | IEN116ns | IP | List of IEN-116 name servers
6 | DNSserv | IP | List of DNS name servers
7 | Logserv | IP | List of MIT-LCS UDP log servers
8 | Cookie | IP | List of RFC-865 cookie servers
9 | Lprserv | IP | List of RFC-1179 line printer servers
10 | Impress | IP | List of Imagen Impress servers
11 | Resource | IP | List of RFC-887 resource location servers
12 | Hostname | Boolean | Return client's host name, value from hosts database
13 | Bootsize | Number | Number of 512 octet blocks in boot image
14 | Dumpfile | ASCII | Path where core image should be dumped
15 | DNSdmain | ASCII | DNS domain name
16 | Swapserv | IP | Client's swap server
17 | Rootpath | ASCII | Client's root path
18 | ExtendP | ASCII | Extensions path
19 | IpFwdF | Number | IP forwarding enable/disable (1/0)
20 | NLrouteF | Number | Non-local source routing
21 | PFilter | IP | Policy filter
22 | MaxIpSiz | Number | Maximum datagram reassembly size
23 | IpTTL | Byte | Default IP time to live (1=< x <=225)
24 | PathTO | Number | RFC-1191 Path MTU aging timeout
25 | PathTbl | Number | RFC-1191 Path MTU plateau table
26 | MTU | Number | Interface MTU, (x <=68)
27 | SameMtuF | Number | All subnets are local
28 | Broadcst | IP | Broadcast address
29 | MaskDscF | Number | Perform mask discovery
30 | MaskSupF | Number | Mask supplier
31 | RDiscvyF | Number | Perform route discovery
32 | RSolictS | IP | Router solicitation address
33 | StaticRt | IP | Static routes, double IP (network router)
34 | TrailerF | Number | Trailer encapsulation
35 | ArpTimeO | Number | Arp cache timeout
36 | EthEncap | Number | Ethernet encapsulation
37 | TcpTTL | Number | TCP default time to live
38 | TcpKaInt | Number | TCP keep alive interval
39 | TcpKaGbF | Number | Keep alive garbage
40 | NISdmain | ASCII | NIS domain_ name
41 | NISservs | IP | List of NIS servers
42 | NTPservs | IP | List of NTP servers
44 | NetBNms | IP | List of Netbios name servers
45 | NetBDsts | IP | List of Netbios distribution servers
46 | NetBNdT | Number | Netbios node type (1=B-node, 2=P, 4=M, 8=H)
47 | NetBScop | ASCII | Netbios scope
48 | XFontSrv | IP | List of X Window font servers
49 | XDispMgr | IP | X Window display managers
51 | LeaseTim | Number | Lease time policy
56 | Message | ASCII | Message to be displayed on client
58 | T1Time | Number | Renewal (T1) time
59 | T2Time | Number | Rebinding (T2) time
62 | NW_dmain | ASCII | Netware/IP domain name
63 | NWIPOpts | Octet | Netware/IP options
64 | NIS+dom | ASCII | NIS+ domain name
65 | NIS+serv | IP | List of NIS+ servers
66 | TFTPsrvN | ASCII | Trivial File Transfer Protocol (TFTP) server hostname
67 | OptBootF | ASCII | Optional bootfile name
68 | MblIPAgt | IP | Mobile IP home agents
69 | SMTPserv | IP | Simple Mail Transport Protocol (SMTP) server
70 | POP3serv | IP | Post Office Protocol (POP3) server
71 | NNTPserv | IP | Network News Transport Protocol (NNTP) server
72 | WWWservs | IP | Default World Wide Web server
73 | Fingersv | IP | Default finger server
74 | IRCservs | IP | Internet Relay Chat (IRC) server
75 | STservs | IP | StreetTalk server
76 | STDAservs | IP | StreetTalk directory assistance server
77 | UserClas | ASCII | User class information
78 | SLP_DA | Octet | Directory agent
79 | SLP_SS | Octet | Service scope
82 | AgentOpt | Octet | Agent circuit ID
89 | FQDN | Octet | Fully Qualified Domain Name
93 | PXEarch | Number | Client system architecture
94 | PXEnii | Octet | Client Network Device Interface
97 | PXEcid | Octet | UUID/GUID-based client identifier
N/A | BootFile | ASCII | File to boot
N/A | BootSrvA | IP | Boot server
N/A | BootSrvN | ASCII | Boot server host name
NA | LeaseNeg | Boolean | Lease is negotiable flag (present=true)
NA | Include | ASCII | Include listed macro values in this macro
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