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02-28-2014 06:47 AM
02-28-2014 06:47 AM
HP GbE2c mirroring problem, seeing only arp/broadcast
My goal is to have an NIDS (snort) running on one blade.
i try to mirror port 20 on port 5 (port 5 will run the NIDS)
Running Version 5.2.8
Here is my config :
/c/pmirr/mirror ena
/c/pmirr/monport 5
/c/pmirr/monport 5
/c/pmirr/monport 5
/c/pmirr/monport 5
/c/l2/stp 1/clear
/c/l2/stp 1/add 1 4 5 6 7 216 253
/c/port 1
pvid 216
/c/port 2
pvid 216
/c/port 3
/c/port 4
/c/port 5
the problem is, I see only arp and broadcast with tcpdump -n -i eth0.
I know it's working a bit because when I add a port to port 5, i see the arp/broadcast that should be on this port, but not the IP traffic.
any clues ?
tx
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03-07-2014 09:11 AM
03-07-2014 09:11 AM
Re: HP GbE2c mirroring problem, seeing only arp/broadcast
I found the answer, I have specifically to put the interface in promisc mode with ifconfig. tcpdump is not doing the job itself. (contrary to the usual)