Switching

Hi , Is it the key is required for enabling SSH on Cisco switches? Domain name crypto key generate rsa bits<512 or 1024 or 2048> I think these 3 is enough to enable SSH login on Cisco switches? then what is the purpose of crypto keys and I've foun...

I received this error after router boot up, is there any way to fix the problem? Failed to generate persistent self-signed certificate. Secure server will use temporary self-signed cerificate

i have problems with the cisco switch , in the UPS maintenance the cisco switch was tun off and when go back turn on the switch was blocked . all leds are on : Syst       on         ambar  Rps        on          green Stat        on          green ...

Hi, I just finished setting up this network which took hours of my time on Cisco packet tracer. But now out of nowhere nodes cannot connect/ping to other nodes on other networks. I cannot find a solution. Please help. 

I have multiple PCs connected to a router with static IP. The Ipv4 & default gateway set up is 192.168.10 but some PCs that were on 192.168.10  have changed to 192.168.1. Not all but some. On the PCs that changed, I removed the ethernet cable and plu...

Hi! I would like to use a Nat Hairpin at a Cisco 3825 (Version 15.1(4)M10), so that I can reach my mail services from inside and outside (smartphone with wlan). Here is my relevant config: interface GigabitEthernet0/0 ip address IP 255.255.255.0 i...

I ran the "sho ip sockets" command on my Cisco 4331 Router running Version 15.4 and saw that a remote IP (one with a bad reputation online) was connected to my router on port 161 (SNMP). I removed the SNMP Community string from the router, and even a...

Does anyone know how I can enable & configure Multicast on a single SVI? I cannot have multicast leave that vlan. I have PIM feature enabled and I have PIM sparse mode running on the SVI. I am not sure how to setup the "ip igmp snooping querier" or s...

Good morning, Dear I contact to request his extensive experience for me and can help indicate what the Mini is right for the Cisco Catalyst 3550 Series Switch GBIC because that need is 10/100/1000 ethernet found several but not what is the correct : ...

Please see this thread, https://supportforums.cisco.com/discussion/13120201/esxi-cisco-3850-upstream-router-routing-not-working

Dear team, Please help me to find out unused switch port in large network. (eg) ports which are not used for more then 10 days. thanks in advance. Regards, Khaleelur Rahman.

Dear Team, I have a problem regarding wireless connection to internet, In my LAN setup whenever i connect to youtube the channel webpage opens up properly but when you click any videos to view the buffering goes on and when you refresh the page somet...

We are in the midst of migrating our core infrastructure from four Cat6500s to two Nexus 7Ks with 5Ks. One of the tasks I am charged with is migrating that STP roots for all of our VLANS from our Cat to our Nexus7K, in addition to migrating the hsrp ...

Hi Inter Webers, I am greatly in need of your assistance and would be greatly for any help.  I am in the process of setting up a voice lab and I am having issues with my router on a stick setup.    It seems I cannot ping the hosts.  PCs: 192.168.15...