Net::DHCP::Constants(3p)

NAME
Net::DHCP::Constants - Constants for DHCP codes and options

SYNOPSIS
  use Net::DHCP::Constants;
  print "DHCP option SUBNET_MASK is ", DHO_SUBNET_MASK();

DESCRIPTION
Represents constants used in DHCP protocol, defined in RFC 1533, RFC 2132, RFC 2241, RFC 2485, RFC 2563, RFC 2937, RFC 3004, RFC 3011, RFC 3046.

TAGS
As mentioned above, constants can either be imported individually or in sets grouped by tag names. The tag names are:

•   bootp_codes

    Imports all of the basic BOOTP constants.

      (01) BOOTREQUEST
      (02) BOOTREPLY

•   htype_codes

    Imports all HTYPE (hardware address type) codes.

      (01) HTYPE_ETHER
      (06) HTYPE_IEEE802
      (08) HTYPE_FDDI

    Most common value is HTYPE_ETHER for "Ethernet".

•   dhcp_message

    Import all DHCP Message codes.

    (rfc2132)

      (01) DHCPDISCOVER
      (02) DHCPOFFER
      (03) DHCPREQUEST
      (04) DHCPDECLINE
      (05) DHCPACK
      (06) DHCPNAK
      (07) DHCPRELEASE
      (08) DHCPINFORM
      (09) DHCPFORCERENEW

    (rfc4388)

      (10) DHCPLEASEQUERY
      (11) DHCPLEASEUNASSIGNED
      (12) DHCPLEASEUNKNOWN
      (13) DHCPLEASEACTIVE

    Nb. Previously Cisco used 13 for DHCPLEASEQUERY. If you need to decode or encode packets to communicate with such a system, you might simply us the integer rather than the constant - or use the updated constant and comment in your code appropriately.

•   dho_codes

    Import all DHCP option codes.

      (000) DHO_PAD
      (001) DHO_SUBNET_MASK
      (002) DHO_TIME_OFFSET
      (003) DHO_ROUTERS
      (004) DHO_TIME_SERVERS
      (005) DHO_NAME_SERVERS
      (006) DHO_DOMAIN_NAME_SERVERS
      (007) DHO_LOG_SERVERS
      (008) DHO_COOKIE_SERVERS
      (009) DHO_LPR_SERVERS
      (010) DHO_IMPRESS_SERVERS
      (011) DHO_RESOURCE_LOCATION_SERVERS
      (012) DHO_HOST_NAME
      (013) DHO_BOOT_SIZE
      (014) DHO_MERIT_DUMP
      (015) DHO_DOMAIN_NAME
      (016) DHO_SWAP_SERVER
      (017) DHO_ROOT_PATH
      (018) DHO_EXTENSIONS_PATH
      (019) DHO_IP_FORWARDING
      (020) DHO_NON_LOCAL_SOURCE_ROUTING
      (021) DHO_POLICY_FILTER
      (022) DHO_MAX_DGRAM_REASSEMBLY
      (023) DHO_DEFAULT_IP_TTL
      (024) DHO_PATH_MTU_AGING_TIMEOUT
      (025) DHO_PATH_MTU_PLATEAU_TABLE
      (026) DHO_INTERFACE_MTU
      (027) DHO_ALL_SUBNETS_LOCAL
      (028) DHO_BROADCAST_ADDRESS
      (029) DHO_PERFORM_MASK_DISCOVERY
      (030) DHO_MASK_SUPPLIER
      (031) DHO_ROUTER_DISCOVERY
      (032) DHO_ROUTER_SOLICITATION_ADDRESS
      (033) DHO_STATIC_ROUTES
      (034) DHO_TRAILER_ENCAPSULATION
      (035) DHO_ARP_CACHE_TIMEOUT
      (036) DHO_IEEE802_3_ENCAPSULATION
      (037) DHO_DEFAULT_TCP_TTL
      (038) DHO_TCP_KEEPALIVE_INTERVAL
      (039) DHO_TCP_KEEPALIVE_GARBAGE
      (041) DHO_NIS_SERVERS
      (042) DHO_NTP_SERVERS
      (043) DHO_VENDOR_ENCAPSULATED_OPTIONS
      (044) DHO_NETBIOS_NAME_SERVERS
      (045) DHO_NETBIOS_DD_SERVER
      (046) DHO_NETBIOS_NODE_TYPE
      (047) DHO_NETBIOS_SCOPE
      (048) DHO_FONT_SERVERS
      (049) DHO_X_DISPLAY_MANAGER
      (050) DHO_DHCP_REQUESTED_ADDRESS
      (051) DHO_DHCP_LEASE_TIME
      (052) DHO_DHCP_OPTION_OVERLOAD
      (053) DHO_DHCP_MESSAGE_TYPE
      (054) DHO_DHCP_SERVER_IDENTIFIER
      (055) DHO_DHCP_PARAMETER_REQUEST_LIST
      (056) DHO_DHCP_MESSAGE
      (057) DHO_DHCP_MAX_MESSAGE_SIZE
      (058) DHO_DHCP_RENEWAL_TIME
      (059) DHO_DHCP_REBINDING_TIME
      (060) DHO_VENDOR_CLASS_IDENTIFIER
      (061) DHO_DHCP_CLIENT_IDENTIFIER
      (062) DHO_NWIP_DOMAIN_NAME
      (063) DHO_NWIP_SUBOPTIONS
      (064) DHO_NIS_DOMAIN
      (065) DHO_NIS_SERVER
      (066) DHO_TFTP_SERVER
      (067) DHO_BOOTFILE
      (068) DHO_MOBILE_IP_HOME_AGENT
      (069) DHO_SMTP_SERVER
      (070) DHO_POP3_SERVER
      (071) DHO_NNTP_SERVER
      (072) DHO_WWW_SERVER
      (073) DHO_FINGER_SERVER
      (074) DHO_IRC_SERVER
      (075) DHO_STREETTALK_SERVER
      (076) DHO_STDA_SERVER
      (077) DHO_USER_CLASS
      (081) DHO_FQDN
      (082) DHO_DHCP_AGENT_OPTIONS
      (085) DHO_NDS_SERVERS
      (086) DHO_NDS_TREE_NAME
      (098) DHO_USER_AUTHENTICATION_PROTOCOL
      (116) DHO_AUTO_CONFIGURE
      (117) DHO_NAME_SERVICE_SEARCH
      (118) DHO_SUBNET_SELECTION
      (255) DHO_END

TO DO, LIMITATIONS
Automatic parsing of DHO_VENDOR_ENCAPSULATED_OPTIONS (code 43) is unsupported.

Automatic parsing of DHO_NWIP_SUBOPTIONS (code 63 - rfc 2242) is unsupported.

Automatic parsing of DHO_USER_CLASS (code 77 - rfc 3004) is unsupported.

Automatic parsing of DHO_CCC (code 122 - rfc 3495) is unsupported.

Automatic parsing of DHO_PACKETCABLE_DEPRECATED (code 177 - rfc 3495) is unsupported.

SEE ALSO
Net::DHCP::Packet, Net::DHCP::Options

AUTHOR
Dean Hamstead <djzort@cpan.org> and past Authors (see README)

COPYRIGHT
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.