On 02/07/2013 08:39, Giles Coochey wrote:
Hi,
I hope someone can help me, I cannot seem to get a system's ethernet
interface to correctly work in promiscuous mode...
I have a Centos 6.4 system with 2 bnx2 interfaces on it.
I have set up eth1 in promiscuous mode and am sending traffic to it
using the port mirroring configuration on a Nortel 3510-24T switch.
The switch reports that it is sending a fair amount of traffic to the
mirror port.
However, within Centos 6.4, I only see broadcast traffic from the
switch:
This turned out, not to be a problem with Centos, but a limitation or
the interpretation of the port mirror feature on the Nortel 3510-24T switch.
Setting up a mirror port to capture traffic to/from port<x> and to/from
port<y> doesn't create a mirror port of traffic passing through either
interface, but seems to mirror traffic that passes through both
interfaces, which is no good in a VRRP situation!!
--
Regards,
Giles Coochey, CCNP, CCNA, CCNAS
NetSecSpec Ltd
+44 (0) 7983 877438
http://www.coochey.net
http://www.netsecspec.co.uk
giles@xxxxxxxxxxx
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