[Filebeat] improve logic for network.direction in sophos xg fileset (#…

…22973) * improve logic for network.direction in sophos xg fileset - "external" when traffic src and dst are in 'WAN' zone Relates #21674 * Update CHANGELOG.next.asciidoc Co-authored-by: Andrew Kroh <[email protected]> Co-authored-by: Andrew Kroh <[email protected]>
elastic · Dec 8, 2020 · db4830b · db4830b
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diff --git a/CHANGELOG.next.asciidoc b/CHANGELOG.next.asciidoc
@@ -737,6 +737,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Improve Nats filebeat dashboard. {pull}22726[22726]
 - Add support for UNIX datagram sockets in `unix` input. {issues}18632[18632] {pull}22699[22699]
 - Add new httpjson input features and mark old config ones for deprecation {pull}22320[22320]
+- Add logic for external network.direction in sophos xg fileset {pull}22973[22973]
 
 *Heartbeat*
 
@@ -922,4 +923,3 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 
 
 
-
diff --git a/x-pack/filebeat/module/sophos/xg/ingest/firewall.yml b/x-pack/filebeat/module/sophos/xg/ingest/firewall.yml
@@ -390,6 +390,10 @@ processors:
     field: network.direction
     value: internal
     if: "['LAN', 'DMZ', 'VPN', 'WiFi'].contains(ctx?.observer?.ingress?.zone) && ['LAN', 'DMZ', 'VPN', 'WiFi'].contains(ctx?.observer?.egress?.zone)"
+- set:
+    field: network.direction
+    value: external
+    if: "ctx?.observer?.ingress?.zone == 'WAN' && ctx?.observer?.egress?.zone == 'WAN'"
 
 #########################
 ## ECS Related Mapping ##