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Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...

I was able to setup the RADIUS Authentication in one of my switches. I also was able to test the connectivity and it works fine: test aaa group radius server x.x.x.xAttempting authentication test to server-group radius using radiusUser was successful...

Hello peers!   I THINK i have a simple question, but it's just an odd quirky one. I have a couple standalone, un-stacked 2960Xs out there with a stacking module in the back. Proactive monitoring software is picking those up as critical, down stacking...

Hello, i cant establish an IPSEC-Tunnel in my network. The most part of this is a test, so the ipsec parameters are just randomly chosen (I "weakened" them, because i wanted to have less fources of error ....). I shouldnt be the one who even make thi...

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FA2 by Level 1
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  • 7 replies
  • 0 Helpful votes

Hi Genius,  I have cisco 4500X switch in my network. I would like to do the selective qinq for tagged vlan & Untagged vlan. But the problem is i am not able to find the configuration for untagged frames selective QinQ.     Tagged frame configuration:...

jigojar by Level 1
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  • 3 replies
  • 0 Helpful votes

Resolved! Domian Name

Hi, I need to change the ip domain name in one of my switches. That switch is currently in production. it will cause any issue if I do that change? Do I need to do the change using console cable or can I do it connected to SSH? Thanks

Hello,   It happened to 2 similar 2960X stacks (not at the same time). These stacks are queried at regular basis by an MRTG server through SNMP.   Suddenly the stack stops responding to snmp queries. I succeeded in activating snmp debug once, so I sa...

Hi, as a starting network engineer I am puzzled by a problem on of our clients has.. we cannot ping certain IPs within the network and others we can ping. This happens on a Cisco C897VAB-K9. I’ve checked the ARP table and all IP register. But when I ...

m.x by Level 1
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  • 3 replies
  • 0 Helpful votes

  Hey  I need your help!!! I have a switch Ethernet Industrial IE-3000-8TC-E and I try to connect to FC FastEthernet 10/100M to Firewall CheckPoint /1000M, but the communication fails; I connect the checkpoint firewall to another switch (Cisco Cataly...

I have a switch and router on Packet Tracer and I cannot ping the router from the switch. Below, is the interface script on the switch and the router's f0/0 configuration. Configs: Router:  interface FastEthernet0/0ip address 192.168.20.1 255.255.255...

Hi Expert,%C4K_RKNOVA-2-EDACSOFTERROR: Excessive number of correctable CPU L2 cache soft errorsI don't found in any docs and error decode tool.Anyone have ever got this error messages? is it serious?Thanks in advance.

Rojer-bkk by Level 1
  • 4865 Views
  • 4 replies
  • 0 Helpful votes

We need to replace a VS-SUP2T-10G supervisor engine in a WS-C6509-E. The 6500 has only one supervisor engine so we will obviously need some downtime. We have no test 6500 to install the replacement  supervisor engine to and put on the correct IOS and...