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Splunk Add-on for AWS doesn't handle IPv6 CloudFront logs

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The v5.0.1 of the Splunk Add-on for AWS doesn't properly parse CloudFront access logs from IPv6 clients. You can see in the props.conf has this extraction:

EXTRACT-cloudfront_web = ^\s*(?P<date>[0-9-]+)\s+(?P<time>[0-9:]+)\s+(?P<x_edge_location>[^\s]+)\s+(?P<sc_bytes>\d+)\s+(?P<c_ip>[0-9.]+) ...

EXTRACT-cloudfront_rtmp = ^\s*(?P<date>[0-9-]+)\s+(?P<time>[0-9:]+)\s+(?P<x_edge_location>[^\s]+)\s+(?P<c_ip>[0-9.]+) ...

Those patterns for c_ip will only match IPv4, not IPv6. As a result I don't get extracted fields on my access log lines that come from IPv6 clients.

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