HP-UX IP Address and Client Management Administrator's Guide HP-UX 11i v2, HP-UX 11i v3

You can enter the tags in any order, with the following exceptions:
• The client’s host name must be the first field of an entry.
• The ht (hardware type) tag, if specified, must precede the ha (hardware address) and hm
(hardware mask) tags.
• If you specify the gw (gateway IP address) tag, you must also specify the sm (subnet mask)
tag.
Additional points to know when adding an entry in the /etc/bootptab file include the
following:
• IP addresses listed for a single tag must be separated by a space.
• You can extend a single client entry over multiple lines if you use a backslash (\) at the end
of each line.
• Blank lines and lines that begin with the pound sign (#) are ignored.
Parameter Tags and Descriptions
Table 3-1 describes the tags most commonly used to define the client parameters. For more
information on the different types of tags, type man 1M bootpd at the HP-UX prompt.
Table 3-1 Tags for Defining Client Options in the /etc/bootptab File
DescriptionTag Name
Forces bootpd to broadcast the bootreply to the client’s network. Use this tag only while
troubleshooting the bootpquery program.
ba
Specifies the boot file name that the client downloads with TFTP.
bf
Specifies the boot file size in 512-byte blocks. If you do not specify a value for this tag, the server
automatically calculates the boot file size at each request.
bs
Specifies the IP addresses of the BIND name servers.
ds
Specifies the IP addresses of the gateways for the client’s subnet.
gw
Specifies the client’s hardware address.
ha
Specifies the directory to which the boot file is appended (See bf tag). The directory specified must
end with a slash (/). The default is the root directory (/).
hd
Sends the host name in the bootreply. This tag is strictly Boolean; it does not need an equal sign or
an assigned value.
hn
Specifies the client’s hardware type. You can assign the value ieee or ether. If used, this tag must
precede the ha tag.
ht
Specifies the BOOTP client’s IP address. You must enter only one IP address for this tag. This tag
distinguishes a boot entry from a relay entry.
ip
Specifies the subnet mask for the client’s network.
sm
Specifies previously listed entry that contains tag values that are shared by several client entries.
tc
Specifies the format of the vendor extensions on the bootrequest and bootreply. Possible values are
auto (the bootreply uses the format used in the bootrequest), rfc1048 (the most commonly used
format, described in RFC 1048), and cmu (another format used by some BOOTP clients). If you do
not specify the vm tag, the bootreply uses the format sent by the client in the bootrequest.
vm
Table 3-2 describes the tags most commonly used to define the relay parameters. For more
information on these and the other tags available, type man 1M bootpd at the HP-UX prompt.
104 Configuring the BOOTP and TFTP Servers