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Table: aws_vpc_flow_log_event
VPC flow logs capture information about the IP traffic going to and from network interfaces in your VPC.
This table reads flow log records from CloudWatch log groups.
Important notes:
- You must specify
log_group_name
in awhere
clause in order to use this table. - For improved performance, it is advised that you use the optional qual
timestamp
to limit the result set to a specific time period. - This table supports optional quals. Queries with optional quals are optimised to used CloudWatch filters. Optional quals are supported for the following columns:
action
dst_addr
dst_port
event_id
filter
interface_id
log_status
log_stream_name
region
src_addr
src_port
timestamp
Examples
List events that occurred over the last five minutes
select log_group_name, log_stream_name, log_status, action, ingestion_time, timestamp, interface_id, interface_account_id, src_addr, regionfrom aws_vpc_flow_log_eventwhere log_group_name = 'vpc-log-group-name' and timestamp >= now() - interval '5 minutes';
List ordered events that occurred between five to ten minutes ago
select log_group_name, log_stream_name, log_status, action, ingestion_time, timestamp, interface_id, interface_account_id, src_addr, regionfrom aws_vpc_flow_log_eventwhere log_group_name = 'vpc-log-group-name' and timestamp between (now() - interval '10 minutes') and (now() - interval '5 minutes')order by timestamp asc;
List distinct interface IDs found in all flow logs that occurred over the last hour
select distinct(interface_id)from aws_vpc_flow_log_eventwhere log_group_name = 'vpc-log-group-name' and timestamp >= now() - interval '1 hour';
Get details for all rejected traffic that occurred over the last hour
select log_stream_name, timestamp, interface_id, interface_account_id, src_addr, src_port, dst_addr, dst_portfrom aws_vpc_flow_log_eventwhere log_group_name = 'vpc-log-group-name' and action = 'REJECT' and timestamp >= now() - interval '1 hour';
Filter examples
For more information on CloudWatch log filters, please refer to Filter Pattern Syntax.
List flow logs with traffic between specific IP addresses that occurred over the last hour
select log_group_name, log_stream_name, log_status, action, ingestion_time, timestamp, interface_id, interface_account_id, src_addr, regionfrom aws_vpc_flow_log_eventwhere log_group_name = 'vpc-log-group-name' and log_stream_name = 'eni-1d47d21d-all' and ( src_addr = '10.85.14.210' or dst_addr = '10.85.14.213' ) and timestamp >= now() - interval '1 hour'order by timestamp;
List flow logs with source IP address in a specific range that occurred over the last hour
select log_group_name, log_stream_name, log_status, action, ingestion_time, timestamp, interface_id, interface_account_id, src_addr, regionfrom aws_vpc_flow_log_eventwhere log_group_name = 'vpc-log-group-name' and log_stream_name = 'eni-1d47d21d-all' and src_addr << '10.0.0.0/8' :: inet and timestamp >= now() - interval '1 hour'order by timestamp;
.inspect aws_vpc_flow_log_event
AWS VPC Flow Log events from CloudWatch Logs
Name | Type | Description |
---|---|---|
_ctx | jsonb | Steampipe context in JSON form, e.g. connection_name. |
account_id | text | The AWS Account ID in which the resource is located. |
action | text | The action that is associated with the traffic: ACCEPT — The recorded traffic was permitted by the security groups and network ACLs. REJECT — The recorded traffic was not permitted by the security groups or network ACLs. |
bytes | bigint | The number of bytes transferred during the flow. |
dst_addr | inet | The destination address for outgoing traffic, or the IPv4 or IPv6 address of the network interface for incoming traffic on the network interface. The IPv4 address of the network interface is always its private IPv4 address. See also pkt-dstaddr. |
dst_port | bigint | The destination port of the traffic. |
end | timestamp with time zone | The time when the last packet of the flow was received within the aggregation interval. This might be up to 60 seconds after the packet was transmitted or received on the network interface. |
event_id | text | The ID of the event. |
filter | text | Filter pattern for the search. |
ingestion_time | timestamp with time zone | The time when the event was ingested. |
interface_account_id | text | The AWS account ID of the owner of the source network interface for which traffic is recorded. If the network interface is created by an AWS service, for example when creating a VPC endpoint or Network Load Balancer, the record may display unknown for this field. |
interface_id | text | The ID of the network interface for which the traffic is recorded. |
log_group_name | text | The name of the log group to which this event belongs. |
log_status | text | The logging status of the flow log: OK — Data is logging normally to the chosen destinations. NODATA — There was no network traffic to or from the network interface during the aggregation interval. SKIPDATA — Some flow log records were skipped during the aggregation interval. This may be because of an internal capacity constraint, or an internal error. |
log_stream_name | text | The name of the log stream to which this event belongs. |
packets | bigint | The number of packets transferred during the flow. |
partition | text | The AWS partition in which the resource is located (aws, aws-cn, or aws-us-gov). |
protocol | bigint | The IANA protocol number of the traffic. For more information, see Assigned Internet Protocol Numbers. |
region | text | The AWS Region in which the resource is located. |
src_addr | inet | The source address for incoming traffic, or the IPv4 or IPv6 address of the network interface for outgoing traffic on the network interface. The IPv4 address of the network interface is always its private IPv4 address. See also pkt-srcaddr. |
src_port | bigint | The source port of the traffic. |
start | timestamp with time zone | The time when the first packet of the flow was received within the aggregation interval. This might be up to 60 seconds after the packet was transmitted or received on the network interface. |
timestamp | timestamp with time zone | The time when the event occurred. |
version | bigint | The VPC Flow Logs version. If you use the default format, the version is 2. If you use a custom format, the version is the highest version among the specified fields. For example, if you specify only fields from version 2, the version is 2. If you specify a mixture of fields from versions 2, 3, and 4, the version is 4. |