c.d.wakelin at reading
Jul 11, 2012, 7:44 AM
Views: 240
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PF_RING DNA RSS in libpcap
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I've just made a little patch to enable the PF_RING_DNA_SYMMETRIC_RSS
flag if the environment variable PCAP_PF_RING_DNA_RSS exists:
--- userland/libpcap-1.1.1-ring/pcap-linux.c.orig 2012-06-05
08:32:28.000000000 +0100
+++ userland/libpcap-1.1.1-ring/pcap-linux.c 2012-07-11
15:27:10.434677526 +0100
@@ -1167,6 +1167,7 @@
int flags = 0;
if(handle->opt.promisc) flags |= PF_RING_PROMISC;
+ if(getenv("PCAP_PF_RING_DNA_RSS")) flags |=
PF_RING_DNA_SYMMETRIC_RSS;
handle->ring = pfring_open((char*)device, handle->snapshot,
flags);
Then checked with PF_RING-enabled tcpdump
PCAP_PF_RING_DNA_RSS=yes tcpdump -n -i dna0@3
and now the flows are nicely symmetric :)
Best Wishes,
Chris
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Christopher Wakelin, c.d.wakelin [at] reading
IT Services Centre, The University of Reading, Tel: +44 (0)118 378 2908
Whiteknights, Reading, RG6 2AF, UK Fax: +44 (0)118 975 3094
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PF_RING DNA RSS in libpcap
