3com WXR100 3CRWXR10095A User Manual

C

HAPTER

 10: C

ONFIGURING

 MAP A

CCESS

 P

OINTS

In cases where DHCP is not available, you can manually assign IP address 
information to a Distributed MAP. This information is configured through 
the CLI.

You can configure the following information for a Distributed MAP:

a IP address, subnet mask, default gateway router, and whether the 

configured static IP address information is enabled for the MAP.

b The IP address of a suitable WX switch for the MAP to use as a boot 

device.

c The fully qualified domain name of a WX switch to use as a boot 

device, and the IP address of a DNS server used to resolve the WX 
switch’s name.

These items are referred to by letter in the description of how the MAP 
contacts a WX switch in “How a Distributed MAP Contacts a WX Switch 
(Statically Configured Address)” on page 193. If the MAP does not have 
static IP address information configured, or its static IP configuration is 
disabled, then the MAP obtains its IP address through DHCP.

After the MAP has an IP address, it attempts to contact a WX switch on 
the network. The method used for contacting a WX switch depends on 
whether the MAP’s IP address was obtained through DHCP or was 
configured statically.

1 If the DHCP Offer message contained WX IP addresses or fully qualified 

hostnames in the Option 43 field, the MAP proceeds as follows:

„

If the DHCP Offer message contained one or more IP addresses in the 
Option 43 field, the MAP sends a unicast Find WX message to each 
address. The process skips to step 6.

„

If the DHCP Offer message contained one or more hostnames in the 
Option 43 field, the MAP sends DNS Requests to the DNS server for 
the IP addresses of the hosts, then sends a unicast Find WX message 
to each address. The process skips to step 6.