Help with AWS Network firewall rule

Question

I have a requirement to create below rule in AWS network firewall. I am not sure if this is supported given the destination ports are non standard (i.e. not 80/.443). and if supported can this be stateful rule and if so how?

Source - IP address of an EC2 (x.x.x.x/32) 
Destination domain: *.example.com*  
Destination port range: 5661-5662

Destination IP is unknown or keeps changing.

Any guidance here will be greatly appreciated.

**Purpose for this type of request:**

We have a requirement to enable a Microsoft PowerBI related domain from an EC2 which would contain Microsoft On-premises Data Gateway. This domain needs access to non standard ports other than 443. Due to data sensitivity, we are mandated to only allow outbound access from EC2 to specific domain/port and block everything else. Hence looking for a solution to define a AWS NW FW rule which caters to this specific requirement.

Answer

You could look into using suricata based rules like this example for domain filtering.

You could also do it with 5-tuple settings being constantly updated by a lambda function that checks the IP for a domain and updates the Network Firewall Rule

Help with AWS Network firewall rule

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