To configure DHCP shaper via EMS on an access point:
When the class is created, select Client.QoS Policy.Map and add a policy ("Add Policy" button).
Then add the class to the policy.
To do that, select the class and click "Add Class" button.
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Host is up (0.00056s latency).
PORT STATE SERVICE
After that, specify limits and action in the opened window.
Policy Simple is a simplified setting where two parameters are defined:
The action performed on the traffic should be selected in Action types.
Send — if set to On, all packets of corresponding traffic flow will be transmitted;
Drop — if set to On, all packets of corresponding traffic will be dropped.
Only the traffic with certain speed should be transmitted, the rest of the packets should go to Drop. Consequently, enter the values and set Send to On.
The result will be a rule limiting DHCP traffic to 100 kbps.
When configuring a shaper on ESR, either Discover (from client to server) or Offer (from server to client) transmitting may be limited.
1. Limiting DHCP Discover transmitting from client to server
security zone-pair any self rule 999 action permit rate-limit pps 2 match not fragment match protocol udp match destination-port DHCP enable exit exit |
2. Limiting DHCP Offer transmitting from server to client
security zone-pair apuser any rule 999 action permit rate-limit pps 2 match not fragment match protocol udp match destination-port DHCP enable exit exitt |