Cisco IOS in a Nutshell, 2nd Edition

Name

async-bootp — global

Synopsis

async-bootp keyword [:hostname] value
no async-bootp keyword [:hostname] value

Configures

BOOTP parameters for async dial-up lines

Default

Disabled

Description

This command assigns a value to a given BOOTP keyword. Table 17-2 shows the BOOTP parameters and their values. Normally, all BOOTP parameters are sent to dial-up hosts requesting BOOTP information. Adding : hostname to a keyword applies the BOOTP variable to a specific requesting host. Other hosts that request BOOTP parameters will not be sent this keyword.

Table 17-2. BOOTP keywords and values

Keyword	Value	Meaning
bootfile	filename	Server boot file to be downloaded
subnet-mask	mask	The subnet mask to be used
time-offset	offset	The offset time in seconds from the Coordinated Universal Time (UTC)
gateway	address	The IP address of the default gateway
time-server	address	The IP address of the time server
nbns-server	address	The IP address of the Windows NT server
dns-server	address	The IP address of the DNS server
log-server	address	The IP address of the MIT-LCS log server
quote-server	address	The IP address of the QOTD (quote of the day) server
lpr-server	address	The IP address of the LPR print server
bootfile-size	size	The size of the bootfile in terms of 512-byte blocks

Example

The following commands define the DNS server, subnet mask, and NBNS server to be sent to hosts requesting BOOTP information:

! Configure our bootp ...