We are facing an issue with our 4500 switch. It is using the same MAC address for all VLAN interfaces, which is causing a problem with our service provider.Is there a way to disable this?Thanks,Fabián

Hi,I need to assign a public IP address to a host but I want to be sure that he uses the correct one, and if not then deny traffic from other IPs. The host connects through a fiber link to a 6500 which does not support port ACLs so we tried another s...

Hi,I have a Catalyst 6500 with PFC2 and MSFC2 running CatOS (Layer2) + IOS (Layer3). I need to configure a limit of 1Mbps on the bandwidth available for a specific VLAN so I tried to configure policing on the routing engine but it is not working.I ha...

Hi,I am having high CPU utilization (sometimes 90% or more) on a 1841 router. Checking with "show processes cpu" I found out that about 2% is caused by processes and all the rest is because of interrupts. So I checked NAT translations and there are a...