Sorry newbie to catalysts (came from Nortel environment). how do i go about whitelisting MAC addresses on a 3550-48 and denying all other MAC addresses from getting port functionality?thanks!
Hello guys. I am having trouble getting multiple vlans to come up in a 3524 switch. I have them created with an ip address and I have assigned them to a port on the switch that is up. I am unable to get any vlans other than vlan 1 to come up. When I ...
Hi,Wondering if IGMP snooping enabled by default on CAT2950 switches has any side impact (e.g. cause UDP message loss) if the multicast message rate is very high. Understand the snooping is at hardware level, but is there any statistical limit of me...
Hi, does anyone know how a router processes this request if you have two different addresses in the statement. For exampleset ip next-hop 1.1.1.1 2.2.2.2 I assume it will try to send the packet to 1.1.1.1 first and then to 2.2.2.2 if 1.1.1.1 is un...
Hi all,I was wondering if I can etherchannel accross different switches in the stack with the fibre interfaces.Where is this reported in the CCO?Any link/documentation available?ThanksMatteo
I have a the following setup in my network.Internal network-->PIX 550-->3825-->3512 -->InternetBoth the PIX 550 and 3825 are setup as NAT devices. The internal IP address, 10.x.x.x, is natted by the PIX to a 192.x.x.x IP address and then to a 63.x.x...
I don't think I'm going mad but can someone please confirm that a 3350 with SMI installed is still a L3 switch.And the differnece between the SMI and EMI is just more features in the EMI.
I have created an access-list to block most access in our network accept for 2 hosts in one network and access out to the internet, The problem is that when the access list is applied, i am applying it to a Vlan interface, most of the access-list is ...
Hello,Does someone know what could be the cause for such messages (chassis, hardware, ...)? If you have some idear (without opening a case/SR as taking new information from the box isn't possible)They happended on cat6500 with 2 supervisory cards (su...
Hi,I'm not able to figure this out from the technical documentation on the Cisco 826. Is it possible to manage multiple (WAN) IP addresses on this router?Thanks in advance!
Hi,got Cat 3750 and one Port is connected to a hub (10Mb half-duplex). Somtimes these port is disable and a error message is in the log .1. %ETHCNTR-3-HALF_DUX_COLISION_EXCEED_THRESHOLD: Collisions at FastEthernet1/0/8 exceed threshold. Considered a...
