Controller Based WLANs

Why does Multicast traffic to UDP 5000 not work on our network?

Aruba Employee

Environment  :

 

Standalone Master.
Any Aruba Controller, AP and Aruba OS.

 

Symptoms : Wireless clients not receiving multicast traffic.

 

 

There is a knob on the Controller firewall "stateful-ua-processing" i.e. Alcatel VoIP Application level gateway (ALG). 

 

The controller would only accept any udp port 5000 which follows the proper formatting of the message.  This is why any other traffic on this port would get dropped.

 

We need to disable the ALG to keep our multicast traffic (in this case) as generic traffic instead.

# config term
# firewall disable-stateful-ua-processing
# write mem

 

 

There is a knob on the Controller firewall "stateful-ua-processing" i.e. Alcatel VoIP Application level gateway (ALG).  The controller would only accept any udp port 5000 which follows the proper formatting of the message.  This is why any other traffic on this port would get dropped.  We need to disable this ALG to keep our mcast traffic (in this case) as generic traffic instead.

# config term
# firewall disable-stateful-ua-processing
# write mem

 

Resolved TAC Ticket# 1436031 based on this.

 

 

Version history
Revision #:
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Last update:
‎07-09-2014 09:06 AM
Updated by:
 
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