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 at coochey.net