Firewall

With firewall rules you block unwanted traffic and allow specific traffic without filters. Navigate to Products/Services → Virtual DC → Routers → Firewall → Add:

Enter the following parameters: 

• Name; 
• Protocol — select a protocol that the Firewall rule is applied to; 
• Source — an external IP address of incoming traffic 
• Destination IP — a VDC IP address that receives traffic; 
• Policy. 

Configuration rules

• traffic source IP range in one rule cannot include addresses from the traffic source range of another rule; 
• you cannot add the rule if it conflicts with the existing rule. For ample, you have added a rule which allows traffic through any protocol from IP 1.2.3.4. Thus, you cannot add a rule to deny traffic from  IP 1.2.3.4.