3com WXR100 3CRWXR10095A User Manual

You also can enhance bandwidth availability on an SSID by enabling the 
following broadcast control features: 

„

Proxy ARP—WX responds on behalf of wireless clients to ARP requests 
for their IP addresses.

„

DHCP Restrict—WX captures and does not forward any traffic except 
DHCP traffic for a wireless client who is still being authenticated and 
authorized.

„

No Broadcast—Sends unicasts to clients for ARP requests and DHCP 
Offers and Acks instead of forwarding them as multicasts.

All these broadcast control options are disabled by default. 

(To enable broadcast control features, see “Enabling Broadcast Control” 
on page 345.)

You can configure MSS to mark all wireless traffic on an SSID with a 
specific CoS value. When static CoS is enabled, the MAP marks all traffic 
between clients and the WX for a given SSID with the static CoS value. 
The static CoS value must be configured on the SSID’s service profile.

Static CoS is the simplest method of CoS marking to configure. However, 
the static CoS value applies to all traffic regardless of traffic type. To 
instead assign CoS based on specific traffic types within an SSID, use an 
ACL. (See “Overriding CoS”.)

You can configure an ACL that marks packets that match the ACL with a 
specific CoS value. CoS is not changed in packets that do not match the 
ACE (ACL rule) that sets the CoS. (For more information, see “Enabling 
Prioritization for Legacy Voice over IP” on page 401.)