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...
Forum Posts
Problem SummaryIn a Packet Tracer simulation, the ISP router could not reach internal networks through RTR-1, even though traffic from the internal network (Host A) successfully communicated with the external server via NAT. Pings from the ISP to RTR...
Hello, would it be possible to add the following things in newer versions of the cisco dashboard, which would save us work:1. Would it be possible to filter the columns also using the Description port?2. ) It is good that in Port Management you can s...
Resolved! Catalyst switch copy file ! . O meaning
Hi Community,I'm copy file from tftp to flash, it shows like this:I know that ! means packet transfer success, but what does O and . meaning?Thanks!
Good morning, I have detected an issue with a Cisco 9200L switch stack running software version 17.06.03. We observe that when the switch with the active role fails, hosts connected to the backup switch lose communication for about 5 or 6 seconds (we...
HiI have a cable connected from isp to my switch port g1/0/1its up and its listening for the mac of the isp side ip. traffic is working fine through it. i have deployed nms and it wasnt showing traffic on that interface. so i manually checked that p...
Resolved! SSH login creds vs local usernames
I have an odd request. And I’m beating myself up trying to figure out if it’s even possible. 8200 series router. no aaa new model is set currently. there are 3 local user accounts:username user-admin priv 15 password 7 xxxxxusername user2 priv 15 pa...
Hi there, where can i see which rommon version is standard to use for a line card? Is it the primary or golden rommon image for a line card? Many thanks!
Resolved! VTY - Access Lists
Hi all, Hope to find everyone well.I'm trying to implement some access-list on the VTY lines to restrict access only to a certain range of IP addresses but everytime I create the access list and apply it using the access-class command I end up lockin...
A few days ago, I was contacted by our security department reporting several IP cameras were down. Upon inspection, I discovered 7 ports in an err_disable state. Looking at the logs, I found the following entries:Nov 26 13:47:11 PST: %PM-4-ERR_DISA...
#show versionCisco IOS XE Software, Version 17.09.04aCisco IOS Software [Cupertino], Catalyst L3 Switch Software (CAT9K_LITE_IOSXE), Version 17.9.4a, RELEASE SOFTWARE (fc3)show port-security interface Gi2/0/48Port Security : EnabledPort Status : Secu...
Hello everyone, I hope you are all well.I came to ask for help regarding a very intriguing case.I'm in a project that involves high convergence connections between the Cisco C9600 (with two supervisors, 2 SFP modules of 100 and 50GB and 1 module with...
Hello ExpertsI've configured a DHCP Pool for a customer who wants the router to also give out a couple of dns suffixes to the clients.This is what I've done. Can you please advise how i can get it to work ?ip dhcp pool LAN import all network 10.1...
"I set up a switch, but I want to be able to access it; however, I can't access it via Telnet or HTTPS.I believe the problem is that I did not set up the username. Is there any way to access it remotely?I am attaching the main setup.enable secret 9 $...
Hello,Our core switch using C9500 with stacking enabled, and next year we will implement active active for my firewall using fortigate.When the firewall configure as active active then we need 2 cables connected from firewall to the core switch and f...
We have a 1300-48P-4x connected on C9500-48Y4C-A switch. at first there is no issue until we connected another switch. We are unable to turn up the port. no fancy config ports are just configured as trunk. We thought we solved the issue when we switc...
