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!!