bootp Struct Reference
[DHCP]

Detailed Description

BOOTP message structure.

Data Fields

u_char bp_op

Packet opcode type: 1=request, 2=reply.

u_char bp_htype

Hardware address type: 1=Ethernet.

u_char bp_hlen

Hardware address length: 6 for Ethernet.

u_char bp_hops

Gateway hops.

u_long bp_xid

Transaction ID.

u_short bp_secs

Seconds since boot began.

u_short bp_flags

RFC1532 broadcast, etc.

u_long bp_ciaddr

Client IP address.

u_long bp_yiaddr

'Your' IP address

u_long bp_siaddr

Server IP address.

u_long bp_giaddr

Gateway IP address.

u_char bp_chaddr [16]

Client hardware address.

char bp_sname [64]

Server host name.

char bp_file [128]

Boot file name.

u_char bp_options [312]

Vendor-specific area.