NetworkFirewall / Client / start_flow_flush

start_flow_flush#

NetworkFirewall.Client.start_flow_flush(**kwargs)#

Begins the flushing of traffic from the firewall, according to the filters you define. When the operation starts, impacted flows are temporarily marked as timed out before the Suricata engine prunes, or flushes, the flows from the firewall table.

Warning

While the flush completes, impacted flows are processed as midstream traffic. This may result in a temporary increase in midstream traffic metrics. We recommend that you double check your stream exception policy before you perform a flush operation.

See also: AWS API Documentation

Request Syntax

response = client.start_flow_flush(
    FirewallArn='string',
    AvailabilityZone='string',
    MinimumFlowAgeInSeconds=123,
    FlowFilters=[
        {
            'SourceAddress': {
                'AddressDefinition': 'string'
            },
            'DestinationAddress': {
                'AddressDefinition': 'string'
            },
            'SourcePort': 'string',
            'DestinationPort': 'string',
            'Protocols': [
                'string',
            ]
        },
    ]
)
Parameters:

  • FirewallArn (string) –

    [REQUIRED]

    The Amazon Resource Name (ARN) of the firewall.

  • AvailabilityZone (string) –

    The ID of the Availability Zone where the firewall is located. For example, us-east-2a.

    Defines the scope a flow operation. You can use up to 20 filters to configure a single flow operation.

  • MinimumFlowAgeInSeconds (integer) – The reqested FlowOperation ignores flows with an age (in seconds) lower than MinimumFlowAgeInSeconds. You provide this for start commands.

  • FlowFilters (list) –

    [REQUIRED]

    Defines the scope a flow operation. You can use up to 20 filters to configure a single flow operation.

    • (dict) –

      Defines the scope a flow operation. You can use up to 20 filters to configure a single flow operation.

      • SourceAddress (dict) –

        A single IP address specification. This is used in the MatchAttributes source and destination specifications.

        • AddressDefinition (string) – [REQUIRED]

          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.

      • DestinationAddress (dict) –

        A single IP address specification. This is used in the MatchAttributes source and destination specifications.

        • AddressDefinition (string) – [REQUIRED]

          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.

      • SourcePort (string) –

        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.

      • DestinationPort (string) –

        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.

      • Protocols (list) –

        The protocols to inspect for, specified using the assigned internet protocol number (IANA) for each protocol. If not specified, this matches with any protocol.

        • (string) –

Return type:

dict

Returns:

Response Syntax

{
    'FirewallArn': 'string',
    'FlowOperationId': 'string',
    'FlowOperationStatus': 'COMPLETED'|'IN_PROGRESS'|'FAILED'|'COMPLETED_WITH_ERRORS'
}

Response Structure

  • (dict) –

    • FirewallArn (string) –

      The Amazon Resource Name (ARN) of the firewall.

    • FlowOperationId (string) –

      A unique identifier for the flow operation. This ID is returned in the responses to start and list commands. You provide to describe commands.

    • FlowOperationStatus (string) –

      Returns the status of the flow operation. This string is returned in the responses to start, list, and describe commands.

      If the status is COMPLETED_WITH_ERRORS, results may be returned with any number of Flows missing from the response. If the status is FAILED, Flows returned will be empty.

Exceptions