Security
Firewall
Enable DoS (Denial of Service) Firewall
Threshold:
High (WAN bandwidth > 2 Mbps)
Medium (WAN bandwidth 1 - 2 Mbps)
Low (WAN bandwidth < 1 Mbps)
If Enabled (recommended), invalid packets and connections are dropped.
The "Threshold" affects invalid connections only.
Options
Respond to ICMP (ping) on WAN interface
Allow IPsec
Allow PPTP
Allow L2TP