User`s guide

11 - 14 Aironet Wireless Client

Downloading Using the Internet Boot Protocol (Bootp/DHCP)

The Bootp/DHCP option is enabled by default when the Aironet Wire-

less Client is powered on. The process for downloading ﬁrmware ﬁles

using the Bootp/DHCP parameter is:

1. On power up, the Aironet Wireless Client will issue boot protocol

requests to see if there are any Bootp or DHCP servers on the infra-

structure that have been conﬁgured with the unit infrastructure

address.

2. If no response is found, the request is repeated up to 30 times with a

4 second wait after the ﬁrst request. It then doubles the time

between requests for each additional retry. If there is still no

response, the unit gives up.

3. If multiple responses are received, the unit will pick a DHCP server

over a Bootp server.

4. If a response is received, the IP address assigned to this unit by the

server is compared to the conﬁgured value. If they are different, the

conﬁgured value is changed.

5. The downloaded ﬁle is examined. If the ﬁle is not empty, it is

assumed to be a conﬁguration ﬁle in the format produced by the

“conﬁguration dump” menu command. A Trivial File Transfer Proto-

col (TFTP) dialogue is used to retrieve the ﬁle from the server.

6. The contents of the conﬁguration ﬁle is processed as though the

commands have been entered by the operator at the console. The

commands in the ﬁle will modify the currently running conﬁgura-

tion.

UCE.BK Page 14 Wednesday, February 10, 1999 12:10 PM