AWS::NetworkFirewall::RuleGroup Header - AWS CloudFormation
SyntaxProperties

AWS::NetworkFirewall::RuleGroup Header

The 5-tuple criteria for AWS Network Firewall to use to inspect packet headers in stateful traffic flow inspection. Traffic flows that match the criteria are a match for the corresponding stateful rule.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{
  "Destination" : String,
  "DestinationPort" : String,
  "Direction" : String,
  "Protocol" : String,
  "Source" : String,
  "SourcePort" : String
}

YAML

  Destination: String
  DestinationPort: String
  Direction: String
  Protocol: String
  Source: String
  SourcePort: String

Properties

Destination

The destination IP address or address range to inspect for, in CIDR notation. To match with any address, specify ANY.

Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.

Examples:

  • To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.

  • To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.

  • To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.

  • To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.

For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.

Required: Yes

Type: String

Pattern: ^.*$

Minimum: 1

Maximum: 1024

Update requires: No interruption

DestinationPort

The destination port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.

Required: Yes

Type: String

Pattern: ^.*$

Minimum: 1

Maximum: 1024

Update requires: No interruption

Direction

The direction of traffic flow to inspect. If set to ANY, the inspection matches bidirectional traffic, both from the source to the destination and from the destination to the source. If set to FORWARD, the inspection only matches traffic going from the source to the destination.

Required: Yes

Type: String

Allowed values: FORWARD | ANY

Update requires: No interruption

Protocol

The protocol to inspect for. To specify all, you can use IP, because all traffic on AWS and on the internet is IP.

Required: Yes

Type: String

Allowed values: IP | TCP | UDP | ICMP | HTTP | FTP | TLS | SMB | DNS | DCERPC | SSH | SMTP | IMAP | MSN | KRB5 | IKEV2 | TFTP | NTP | DHCP

Update requires: No interruption

Source

The source IP address or address range to inspect for, in CIDR notation. To match with any address, specify ANY.

Specify an IP address or a block of IP addresses in Classless Inter-Domain Routing (CIDR) notation. Network Firewall supports all address ranges for IPv4 and IPv6.

Examples:

  • To configure Network Firewall to inspect for the IP address 192.0.2.44, specify 192.0.2.44/32.

  • To configure Network Firewall to inspect for IP addresses from 192.0.2.0 to 192.0.2.255, specify 192.0.2.0/24.

  • To configure Network Firewall to inspect for the IP address 1111:0000:0000:0000:0000:0000:0000:0111, specify 1111:0000:0000:0000:0000:0000:0000:0111/128.

  • To configure Network Firewall to inspect for IP addresses from 1111:0000:0000:0000:0000:0000:0000:0000 to 1111:0000:0000:0000:ffff:ffff:ffff:ffff, specify 1111:0000:0000:0000:0000:0000:0000:0000/64.

For more information about CIDR notation, see the Wikipedia entry Classless Inter-Domain Routing.

Required: Yes

Type: String

Pattern: ^.*$

Minimum: 1

Maximum: 1024

Update requires: No interruption

SourcePort

The source port to inspect for. You can specify an individual port, for example 1994 and you can specify a port range, for example 1990:1994. To match with any port, specify ANY.

Required: Yes

Type: String

Pattern: ^.*$

Minimum: 1

Maximum: 1024

Update requires: No interruption