When an IRC session is identified on any port, the countermeasures configured here are taken. "Block DDC" specifies whether and on what routes Direct-Data-Connect (private chats and file transfers) should be given special treatment.
- SNMP ID:
 - 2.8.10.20.2.2
 - Console path:
 - Setup > IP-Router > Firewall > Applications > IRC
 - Possible values:
 - No
 - Always
 - WAN
 - Default route
 
- Default:
 - No