racluster 3.0.6 vs 3.0.8 default aggregation?
Patrick Forsberg via Argus-info
argus-info at lists.andrew.cmu.edu
Tue Dec 20 04:31:58 EST 2016
Hi,
I'm going nuts over aggregation in 3.0.6 and 3.0.8 and realize that I obviously haven't understood a thing.
Given a simple UDP flow between two hosts
# ra -X -r /tmp/ratest
StartTime Flgs Proto SrcAddr Sport Dir DstAddr Dport TotPkts TotBytes State
09:04:56.941624 e udp 100.0.1.1.42461 -> 100.0.2.1.59307 1 77 INT
09:04:57.064776 e udp 100.0.2.1.59307 -> 100.0.1.1.42461 1 62 INT
Simply running racluster with no configuration files (-X) gives different results on 3.0.6 and 3.0.8
# /usr/local/src/Argus/argus-clients-3.0.6/bin/racluster -X -s+trans -r /tmp/ratest
StartTime Flgs Proto SrcAddr Sport Dir DstAddr Dport TotPkts TotBytes State Trans
09:04:56.941624 e udp 100.0.1.1.42461 <-> 100.0.2.1.59307 2 139 CON 2
# /usr/local/src/Argus/argus-clients-3.0.8/bin/racluster -X -s+trans -r /tmp/ratest
StartTime Flgs Proto SrcAddr Sport Dir DstAddr Dport TotPkts TotBytes State Trans
09:04:56.941624 e udp 100.0.1.1.42461 -> 100.0.2.1.59307 1 77 INT 1
09:04:57.064776 e udp 100.0.2.1.59307 -> 100.0.1.1.42461 1 62 INT 1
It seems that 3.0.6 has the "expected behavior" for me.
Running 3.0.8 with "-M correct" gives the same result as for 3.0.6
# /usr/local/src/Argus/argus-clients-3.0.8/bin/racluster -X -M correct -s+trans -r /tmp/ratest
StartTime Flgs Proto SrcAddr Sport Dir DstAddr Dport TotPkts TotBytes State Trans
09:04:56.941624 e udp 100.0.1.1.42461 <-> 100.0.2.1.59307 2 139 CON 2
This implies that 3.0.8 doesn't use the classic 5-tuple (what is the classic 5-tuple by the way?) and I thought I was on to something until I tried
# /usr/local/src/Argus/argus-clients-3.0.8/bin/racluster -X -m saddr daddr sport dport -M correct -s+trans -r /tmp/ratest
StartTime Flgs Proto SrcAddr Sport Dir DstAddr Dport TotPkts TotBytes State Trans
09:04:56.941624 e udp 100.0.1.1.42461 -> 100.0.2.1.59307 1 77 INT 1
09:04:57.064776 e udp 100.0.2.1.59307 -> 100.0.1.1.42461 1 62 INT 1
Now all of a sudden "-M correct" doesn't seem to help in aggregating the records.
What am I missing here?
/Patrick
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