I have pfdump now but I don't see a cluster-id option. Did you mean pfcount? If I run 2 instances of pfcount with the same cluster-id and then replay a pcap with 10 packets all belonging to the same TCP stream, I get 5 packets being sent to each pfcount instance. Shouldn't all 10 packets be sent to 1 instance?
First instance: sudo ./pfcount -c77 -i eth1 <snip> ========================= Absolute Stats: [5 pkts rcvd][5 pkts filtered][0 pkts dropped] Total Pkts=5/Dropped=0.0 % 5 pkts - 434 bytes [0.38 pkt/sec - 0.00 Mbit/sec] ========================= Actual Stats: 5 pkts [1'000.75 ms][5.00 pps/0.00 Gbps] ========================= Second instance: sudo ./pfcount -c77 -i eth1 <snip> ========================= Absolute Stats: [5 pkts rcvd][5 pkts filtered][0 pkts dropped] Total Pkts=5/Dropped=0.0 % 5 pkts - 834 bytes [0.62 pkt/sec - 0.00 Mbit/sec] ========================= Actual Stats: 5 pkts [1'001.39 ms][4.99 pps/0.00 Gbps] ========================= The replayed pcap is just ten packets that result from "curl testmyids.com": tcpdump -nnr testmyids.pcap reading from file testmyids.pcap, link-type EN10MB (Ethernet) 11:46:11.691648 IP 192.168.111.111.50154 > 217.160.51.31.80: Flags [S], seq 3840903154, win 42340, options [mss 1460,sackOK,TS val 20137183 ecr 0,nop,wscale 11], length 0 11:46:11.808833 IP 217.160.51.31.80 > 192.168.111.111.50154: Flags [S.], seq 2859277445, ack 3840903155, win 5840, options [mss 1460,nop,wscale 7], length 0 11:46:11.808854 IP 192.168.111.111.50154 > 217.160.51.31.80: Flags [.], ack 1, win 21, length 0 11:46:11.809083 IP 192.168.111.111.50154 > 217.160.51.31.80: Flags [P.], seq 1:166, ack 1, win 21, length 165 11:46:11.927518 IP 217.160.51.31.80 > 192.168.111.111.50154: Flags [.], ack 166, win 54, length 0 11:46:12.036708 IP 217.160.51.31.80 > 192.168.111.111.50154: Flags [P.], seq 1:260, ack 166, win 54, length 259 11:46:12.036956 IP 192.168.111.111.50154 > 217.160.51.31.80: Flags [.], ack 260, win 21, length 0 11:46:12.037206 IP 192.168.111.111.50154 > 217.160.51.31.80: Flags [F.], seq 166, ack 260, win 21, length 0 11:46:12.154641 IP 217.160.51.31.80 > 192.168.111.111.50154: Flags [F.], seq 260, ack 167, win 54, length 0 11:46:12.154888 IP 192.168.111.111.50154 > 217.160.51.31.80: Flags [.], ack 261, win 21, length 0 Any ideas? Thanks, Doug On Sat, Jun 1, 2013 at 5:48 PM, Doug Burks <[email protected]> wrote: > On Sat, Jun 1, 2013 at 10:24 AM, Luca Deri <[email protected]> wrote: >> Hi Doug >> >> On Jun 1, 2013, at 6:59 AM, Doug Burks <[email protected]> wrote: >> >>> Hello all, >>> >>> I recently packaged PF_RING 5.5.3 for my Security Onion distro: >>> http://securityonion.blogspot.com/2013/05/pfring-553-packages-now-available.html >>> >>> Perhaps I'm missing something, but I'm seeing some behavior I don't >>> remember seeing in 5.5.2 or previous versions of PF_RING. >>> >>> Here are my testing parameters: >>> - starting off with a good test, if I run just one instance of snort, >>> I get an alert from rule 2100498 for EACH time I run "curl >>> testmyids.com" >>> - if I increase to two instances of snort with the same cluster-id, I >>> get NO alerts when running "curl testmyids.com" >>> - if I set the daq clustermode to 2, I get NO alerts when running >>> "curl testmyids.com". (Does clustermode default to 2 if not >>> specified?) >> yes this is the default >>> - if I set the daq clustermode to 4, I get an alert for EVERY OTHER >>> "curl testmyids.com" (if I do 10 curl's, I only get 5 alerts). >> >> >> I am not a snort expert but the default is per IP balancing so it must work, >> otherwise we have a bug. I suggest you to capture traffic with an app such >> as pfdump that is cluster aware and see what traffic the app received > > Hi Luca, > > Thanks for the quick response! > > It looks like I'm seeing similar issues with Suricata and Bro, so I > don't think it's limited to Snort. > > What's the recommended way to compile pfdump.c since there is no > configure and no Makefile in that directory? > > Thanks, > Doug -- Doug Burks http://securityonion.blogspot.com _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
