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In AWS GLB environments, the max_depth of 2 is easily reached due to packets being encapsulated with GENEVE and VXLAN [1]. Any additional encapsulation layer causes Zeek raise a weird and ignore the inner traffic. Bump the default maximum depth to 4, while not common it's not unusual either to observe this in the wild. [1] https://docs.aws.amazon.com/vpc/latest/mirroring/traffic-mirroring-packet-formats.html Closes #3439
11 lines
590 B
Text
11 lines
590 B
Text
# @TEST-DOC: A DNS request encapsulated in 3 layers of VXLAN. Funky but not all that unusual.
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# @TEST-EXEC: zeek -b -r $TRACES/tunnels/vxlan-triple-v2.pcap %INPUT
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# @TEST-EXEC: zeek-cut -m uid id.orig_h id.resp_p id.resp_h id.resp_p proto history service tunnel_parents < conn.log > conn.log.cut
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# @TEST-EXEC: zeek-cut -m uid id.orig_h id.resp_p id.resp_h id.resp_p query < dns.log > dns.log.cut
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# @TEST-EXEC: btest-diff conn.log.cut
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# @TEST-EXEC: btest-diff tunnel.log
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# @TEST-EXEC: btest-diff dns.log.cut
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#
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@load base/frameworks/tunnels
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@load base/protocols/conn
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@load base/protocols/dns
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