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B-23

User Guide for Cisco Network Registrar, 7.1

OL-16002-01

Part 6

Appendices, Glossary, and Index

Appendix B DHCP Options

Option Tables

sip-servers-address

SIP Servers IPv6 Address List

DHCPv6

slp-directory agent

SLP Directory Agent

DHCPv4

slp-service-scope

SLP Service Scope

DHCPv4

smtp-servers

SMTP Server

Servers

sntp-servers

SNTP Configuration

DHCPv6

static-route

Static Route

Interface

status-code

Status Code

DHCPv6

streettalk-directory-
assistance-servers

STDA Server

Servers

streettalk-servers

StreetTalk Server

Servers

subnet-mask

Subnet Mask

Basic

subnet-selection

118

Subnet Selection

DHCPv4

swap-server

Swap Server

BOOTP

tcp-keepalive-garbage

TCP Keepalive Garbage

Interface

tcp-keepalive-interval

TCP Keepalive Interval

Interface

tftp-server

TFTP Server Name

Servers

time-offset

Time Offset

BOOTP

time-servers

Time Server

BOOTP

trailer-encapsulation

Trailer Encapsulation

Interface

tz-database

101

TZ Database String

DHCPv4

tz-posix

100

IEEE 1003.1 String

DHCPv4

user-auth

User Authentication

DHCPv4

user-class

User Class

DHCPv6

vendor-class

Vendor Class

DHCPv6

vendor-encapsulated-options

Vendor Specific Information

DHCPv4

vendor-opts

Vendor Specific Information

DHCPv6

v-i-vendor-class

124

Vendor Identifying Vendor Class

DHCPv4

v-i-vendor-opts

125

Vendor Identifying Vendor
Options

DHCPv4

vpn-id

185

VPN Identifier

DHCPv4

www-servers

WWW Server

Servers

x-display-managers

X Window System
Display Manager

Servers

Table B-11

DHCP Options by Network Registrar Name (continued)

Network Registrar Name

No. Option Name

Category

Содержание SDVR-10P-160

Страница 1: ...B 14 This appendix also contains the standard Microsoft client options and several tables displaying the options sorted by categories Option Descriptions The following sections describe the DHCP options in detail RFC 1497 Vendor Extensions page B 1 IP Layer Parameters Per Host page B 3 IP Layer Parameters Per Interface page B 4 Link Layer Parameters Per Interface page B 4 TCP Parameters page B 5 A...

Страница 2: ...Domain Name System STD 13 RFC 1035 name servers available to the client Servers should be in order of preference Log Server 7 4 octet minimum multiples of 4 List of MIT LCS UDP log servers available to the client Servers should be in order of preference Cookie Server 8 4 octet minimum multiples of 4 List of RFC 865 compliant cookie servers available to the client Servers should be in order of pref...

Страница 3: ...ent should configure its IP layer for packet forwarding Values 0 disable 1 enable Non Local SourceRouting Enable Disable 20 1 octet Specifies whether the client should configure its IP layer to allow forwarding of datagrams with non local source routes Values 0 disable 1 enable Policy Filter 21 8 octet minimum multiples of 8 Policy filters for non local source routing The filters consist of a list...

Страница 4: ...et Perform Mask Discovery 29 1 octet Specifies whether or not the client should perform subnet mask discovery using ICMP Values 0 disable 1 enable Mask Supplier 30 1 octet Specifies whether or not the client should respond to subnet mask requests using ICMP Values 0 do not respond 1 respond PerformRouter Discovery 31 1 octet Specifies whether or not the client should solicit routers using the Rout...

Страница 5: ...n sending TCP segments Value minimum 1 TCP Keepalive Interval 38 4 octets Interval in seconds that the client TCP should wait before sending a keepalive message on a TCP connection The time is specified as a 32 bit unsigned integer A value of zero indicates that the client should not generate keepalive messages on connections unless specifically requested by an application Value 32 bit unsigned 0 ...

Страница 6: ...m of information in this option then the vendor should encode the option using encapsulated vendor specific options as described here The encapsulated vendor specific options field should be encoded as a sequence of code length and value fields of identical syntax to the DHCP options field with these exceptions There should not be a magic cookie field in the encapsulated vendor specific extensions...

Страница 7: ...aracter string consisting of characters from the NVT ASCII character set Network Information Service NIS Servers 65 4 octet minimum multiples of 4 List of IP addresses indicating NIS servers available to the client Servers should be in order of preference Mobile IP Home Agent 68 0 octets minimum multiples of 4 expected 4 octets single home agent address List of IP addresses indicating mobile IP ho...

Страница 8: ...ted IP Address 50 4 octets Used in a client request DHCPDISCOVER to allow the client to request that a particular IP address be assigned IP Address Lease Time 51 4 octets Used in a client request DHCPDISCOVER or DHCPREQUEST to allow the client to request a lease time for the IP address In a server reply DHCPOFFER a DHCP server uses this option to specify the lease time it is willing to offer Value...

Страница 9: ...DECLINE message to indicate why the client declined the offered parameters The message consists of n octets of NVT ASCII text which the client can display on an available output device Maximum DHCP Message Size 57 2 octets Maximum length DHCP message that a server is willing to accept The length is specified as an unsigned 16 bit integer A client can use the maximum DHCP message size option in DHC...

Страница 10: ...identifier other than a hardware address for example a fully qualified domain name For correct identification of clients each client identifier must be unique among the client identifiers used on the subnet to which the client is attached Vendors and system administrators are responsible for choosing client identifiers that meet this requirement for uniqueness TFTP Server Name 66 1 octet minimum I...

Страница 11: ...on request message to inform the server about options the client wants from the server A server can include this option in a Reconfigure message to indicate which option updates the client should request preference AT_INT8 7 A server sends this option to a client to affect what server the client selects Mod elapsed time AT_SHORT 8 A client sends this option to a server to indicate how long the cli...

Страница 12: ...n identity association and its associated parameters and prefixes Parameters are the unique ID time the client contacts the addresses in the IA to extend the lifetime and time the client contacts any available server to extend the lifetime of the addresses iaprefix AT_BLOB 26 IPv6 prefixes associated with an IA_PD The prefix must be encapsulated in the options field of an IA_PD option Parameters a...

Страница 13: ... type link address or 0 0 and options to provide data needed for the query client data AT_BLOB 45 Encapsulates the data for a single client on a single link in a LEASEQUERY REPLY message clt time AT_TIME 46 Client last transaction time encapsulated in the client data option identifies how long ago the server last communicated with the client in seconds lq relay data AT_BLOB 47 Used only in a LEASE...

Страница 14: ...currences 2n means multiple occurrences in multiples of 2 Comments also indicate whether the option includes suboptions and if so how many and whether the option is nonmodifiable NM Tip For the syntax for adding more complex option data values for suboptions see the Adding Complex Values for Suboptions section on page 21 7 domain name servers 6 IP address of the name servers netbios name servers 4...

Страница 15: ...out MTU Timeout AT_TIME 25 path mtu plateau tables MTU Plateau AT_RANGESHORT 2n 26 interface mtu MTU Interface AT_RANGESHORT 27 all subnets local MTU Subnet AT_BOOL 28 broadcast address Broadcast Address AT_IPADDR 29 perform mask discovery Mask Discovery AT_BOOL 30 mask supplier Mask Supplier AT_BOOL 31 router discovery Router Discovery AT_BOOL 32 router solicitation address Router Request AT_IPAD...

Страница 16: ... AT_INT8 0 56 dhcp message DHCP Message AT_NSTRING NM 57 dhcp max message size DHCP Maximum Message Size AT_SHORT NM 58 dhcp renewal time Renewing Time AT_TIME NM 59 dhcp rebinding time Rebinding Time AT_TIME NM 60 dhcp class identifier Class Identifier AT_NSTRING 61 dhcp client identifier Client Identifier AT_BLOB 62 netwareip domain NetWare IP Domain AT_NSTRING 63 netwareip information NetWare I...

Страница 17: ...S Servers AT_IPADDR 1 86 nds tree NDS Tree Name AT_NSTRING 87 nds context NDS Context AT_NSTRING 88 bcms servers d BCMS Controller Domain RFC 4280 AT_DNSNAME 1 89 bcms servers a BCMS Address AT_IPADDR 1 90 authentication Authentication AT_BLOB Suboptions 5 91 client last transaction time Lease Query Client Last Transaction Time AT_TIME 92 associated ip Lease Query Associated IP Addresses AT_IPADDR...

Страница 18: ...bleLabs Client Configuration AT_BLOB Suboptions 10 see cablelabs client configuration page C 3 123 geo conf GeoConf Option AT_BLOB 124 v i vendor class Vendor Identifying Vendor Class AT_VENDOR_CLASS NM 125 v i vendor info Vendor Identifying Vendor Specific Info AT_VENDOR_OPTS See also the cablelabs 125 suboptions in Table C 3 on page C 2 128 mcns security server AT_IPADDR 161 cisco leased ip Cisc...

Страница 19: ...leLabs Client Configuration Interface cisco autoconfigure 251 Cisco Autoconfiguration DHCPv4 cisco client last transaction time 163 Cisco Client Last Transaction Time DHCPv4 cisco client requested host name 162 Cisco Client Requested Host Name DHCPv4 cisco leased ip 161 Cisco Leased IP Address DHCPv4 cisco vpn id 221 Cisco VPN Identifier DHCPv4 classless static route 121 Classless Static Route DHC...

Страница 20: ...DHCPv6 domain name 15 Domain Name Basic MS DHCP Client domain name servers 6 Domain Name Server Basic MS DHCP Client domain search 119 Domain Search DHCPv4 elapsed time 8 Elapsed Time DHCPv6 end 255 End ero 43 Relay Agent Echo Request Option DHCPv6 extensions path 18 Extensions Path BOOTP finger servers 73 Finger Server Servers font servers 48 X Window System Font Server Servers geo conf 123 GeoCo...

Страница 21: ...bile IP Home Agent Servers name servers 5 Name Server BOOTP name service search 117 Name Service Search DHCPv4 nds context 87 NDS Context NetWare Client nds servers 85 NDS Servers NetWare Client nds tree 86 NDS Tree Name NetWare Client netbios dd servers 45 NetBIOS over TCP IP Datagram Distribution Server WINS NetBIOS netbios name servers 44 NetBIOS over TCP IP Name Server WINS NetBIOS MS DHCP Cli...

Страница 22: ...cy Filter Host IP pop3 servers 70 POP3 Server Servers preference 7 Preference DHCPv6 rapid commit 80 Rapid Commit DHCPv4 rapid commit 14 Rapid Commit DHCPv6 reconfigure accept 20 Reconfigure Accept DHCPv6 reconfigure message 19 Reconfigure Message DHCPv6 relay agent info 82 DHCP Relay Agent Information DHCPv4 relay agent subscriber id 38 Relay Agent Subscriber ID DHCPv6 relay message 9 Relay Messa...

Страница 23: ...e Garbage Interface tcp keepalive interval 38 TCP Keepalive Interval Interface tftp server 66 TFTP Server Name Servers time offset 2 Time Offset BOOTP time servers 4 Time Server BOOTP trailer encapsulation 34 Trailer Encapsulation Interface tz database 101 TZ Database String DHCPv4 tz posix 100 IEEE 1003 1 String DHCPv4 user auth 98 User Authentication DHCPv4 user class 15 User Class DHCPv6 vendor...

Страница 24: ...dress MAC address AT_MESSAGE Unsigned 8 bit message not usable for custom options AT_NOLEN No length used for PAD and END only AT_NSTRING Sequence of ASCII characters string AT_OVERLOAD Overload bytes not usable for custom options AT_RANGEBYTE Range of bytes not usable for custom options AT_RANGESHORT Range of shorts not usable for custom options AT_RDNSNAME Relative DNS name relative DNS name AT_...

Страница 25: ...e For the DHCPv6 user class option 15 the repeating pattern is len 2 byte data of single type AT_VENDOR_CLASS Vendor class option enterprise ID followed by opaque data if DHCPv4 enterprise ID is followed by EID length vendor class AT_VENDOR_OPTS Vendor specific options data enterprise ID followed by TLVs of vendor specific data if DHCPv4 enterprise ID is followed by EID length vendor opts AT_ZEROS...

Страница 26: ...B 26 User Guide for Cisco Network Registrar 7 1 OL 16002 01 Part 6 Appendices Glossary and Index Appendix B DHCP Options Option Tables ...

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