Switching

My PC IPv6 local link address is fe80::f420:17f3:0c56:231e  and MAC is 18:03:73:25:e5:cf. I know for global unicast address using EUI-64 format to get the interface ID, so I wonder how is it for local link address to get its interface ID? 

Hi My Client is receiving the following error on WS-C4500X-16SFP+ and WS-C3850-48P-S on startup. According to him there is no impact as yet and this error only appears at startup.  " mpc85xx_pci_err_probe:unable to request irq 0 for MPC85xx PCI err "...

Hi All, I'm having a tough time trying to determine the adequate hardware to purchase for a new installation which will accomidate 50 users but will need the ability to scale to 100+, possibly even other sites. The network will service voice and da...

Hi Guys I am not able to ping device attached to the opposite interface of the router When I am trying to ping the address 10.30.0.84 of laptop attached to Gi0/1 from the laptop attached to interface to interface gi0/2 - not able Able to ping 172.2...

Hello, We have a PBR applied for a certain vlan to redirect  users internet traffic through a dedicated link. The access-list has 5 deny statements with permit any any at the end, so that i direct all traffic through deefault route unless going to o...

Hey we have a SVI interface that will be a mgmt interface on a VSS switch , we will be sourcing all mgmt traffic from that vlan interface. The issue were facing is traffic to reach any device must first go to the firewall as a security policy and the...

Hi, i tried to drill down a Problem with this message in the logs: %C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: Packet received with invalid source MAC address ( [mac-addr] ) on port [char] in vlan [dec] I found the access port from where these invali...

Does WS-2960X-24TS-L running on LAN Base Routing SDM can support HSRP? T.Q

Hello Everyone, I have an office where i am working as the administrator. I have 2 access points of speed 2-3ghz range.Also i have another cisco dual radio accesspoint( Cisco Wap 561 POE) . All the laptops in my office are able to recognize only th...

I've recently acquired a 5506-X that I want to use in my home lab to implement Firepower.  On the outside interface, it is connected to a cable modem, and it is connected to the 2901 router on the inside interface.  I can access the WAN from the LAN,...

we have two internet line, in our WAN gateway, we don't use BGP, so how to design the network, when primary internet line fails, it will auto go to the second internet line? thanks

Hi, Does Catalyst 2960-Plus 24TC-S switch support basic routing function among VLANs in the switch w/o the use of layer-3 switch or router in a stick? Thanks

Hi All, I'm having problems with my Cisco 3750X stack switch. A Cisco IPS module is connected to it and whenever it changes its default gateway point to the management IP of the Cisco 3750X stack, it could not ping its gateway even though its direct...