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CHAPTER 4
Network Setup Protocol Structures and Data Types
162 Protocol Constants and Other Data Types
kOversizeOffNetPacketsMask = 0x0008,
kDHCPDontPreserveLeaseMask = 0x0010,
};
Constant descriptions
kDontDoPMTUDiscoveryMask
If set, this bit turns off path MTU discovery.
kDontShutDownOnARPCollisionMask
If set, this bit disables ARP collision shutdown.
kDHCPInformMask If set, this bit enables DHCPINFORM instead of
DHCPREQUEST.
kOversizeOffNetPacketsMask
If set and with path MTU discovery off, this bit disables
limiting off-network packets to 576 bytes.
kDHCPDontPreserveLeaseMask
If set, this bit disables DHCP INIT-REBOOT capability.
For details about kDHCPInformMask and kDHCPDontPreserveLeaseMask, see Tech
Info Library article 58372 available at http://til.info.apple.com/techinfo.nsf/
artnum/n58372.
OTCfgTCPConfigMethod 4
The OTCfgTCPConfigMethod enumeration defines values that indicate how the
interface acquires an IP address:
enum UInt8 OTCfgTCPConfigMethod {
kOTCfgManualConfig,
kOTCfgRARPConfig,
kOTCfgBOOTPConfig,
kOTCfgDHCPConfig,
kOTCfgMacIPConfig
};
Constant descriptions
kOTCfgManualConfig Use the IP address that is stored in the fIPAddress field.
kOTCfgRARPConfig Obtain an address from a RARP server.