Release Notes

3.0.0-26

Traceroute support.

New Features

• As a Openflow based SDN, traceroute and its back-end network functionalities are not naturally supported. Dragonflow supports traceroute base on RFC792, RFC4884, RFC1812 and RFC5508. Traceroute in Dragonflow cluster works for virtual router and NAT device.

Security Issues

• To prevent DDoS, the rate of responding ICMP error message is controlled by several configuration options. They are ‘dnat_ttl_invalid_max_rate’, ‘dnat_icmp_error_max_rate’, ‘router_ttl_invalid_max_rate’ and ‘router_port_unreach_max_rate’.