3Com 3CRWX120695A, Configuration Manual

Page: 198 / 728

198 C
HAPTER
10: C
ONFIGURING
MAP A
CCESS
P
OINTS
Example MAP Boot
over Layer 3
Network
Figure 15 shows an example of the boot process for a MAP connected
through a Layer 3 network.
Figure 15 MAP Booting over Layer 3 Network
1 The MAP sends DHCP Discover message from the MAP’s port 1.
2 The DHCP server replies with a DHCP Offer message containing an IP
address for the MAP, the default router IP address for the MAP’s IP
subnet, the DNS server address, and the domain name. MAP then sends a
DHCP Request message to the server and receives an Ack from the server.
3 The MAP sends a broadcast Find WX message to the IP subnet broadcast
address.
4 When the MAP is unable to locate a WX on the subnet it is connected to,
the MAP then sends a DNS request for
3com.example.com and
wlan.example.com .
Router
Router
System IP address
10.10.10.4
WX1
Layer 2
System IP address
10.10.40.4
WX2
Layer 2
System IP address
10.10.50.4
WX3
DHCP Server
2
5
8
DAP 1
serial_id M9DE48B123400
model AP2750
bias = high
DAP 1
serial_id M9DE48B123400
model AP2750
bias = low serial_id M9DE48B123400
model AP2750
3
4
6
7
1
3COMWX.example.com =
10.10.10.4
DNS Server
Layer 2
DAP 1
serial_id M9DE48B123400
model AP2750
bias = low
MAP