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
cat9k_iosxe.17.09.04.SPA.bin how I can find it
Hello FreindsMy MGMT WS-3750-X is running on just one power supply. How do I disable the below behavior and force the switch only to accept 1 PSU Line power Jan 2 00:57:58.436: %PLATFORM_STACKPOWER-4-REDUNDANCY_LOSS: Switch 1's power stack lost redun...
cannot configure ssh macs hmac-sha2--256 or hmac-sha2-512 for DISA STIG vulnerability V-220503, SV-220503r1026073.
Resolved! Port Isolation Catalyst 2950
I am looking to isolate ports 1-23 from seeing one another, yet I would like to share port 24 (uplink to Internet connection) with each port.(so that each computer could see the Internet, but could not see each other)I've found a million documents wh...
So I found a wireshark capture and I want to differentiate between the ISL and the Dot1q header.Here is the direct link of the capture: https://wiki.wireshark.org/uploads/__moin_import__/attachments/SampleCaptures/isl-2-dot1q.capYou can find it hereh...
I read that CDP, VTP, and PAgP updates are always forwarded on trunks with a VLAN 1 tag. https://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/24330-185.htmlBut what I saw in the capture that these updates(I just checked c...
Hello ,I'm facing an odd problem with the switch Cisco C1300 when authenticating with Fortinac.When authenticating a printer (Static IP) or a Huawei AP (DHCP), the Fortinac puts the device on the correct VLAN. The switch receives and recognizes the V...
Hi All, I'm doing some self-guided Wireshark training on Udemy in order to better understand and troubleshoot my network. One of the topics today was retransmission, which I see a lot of in my captures and something I haven't been able to understand...
According to the datasheet that we downloaded previously, the Network Essentials license supported automation features. However, in the latest datasheet, this feature is no longer mentioned. This discrepancy is causing confusion for our customer. Cou...
Resolved! incorrect time in log file
we have several cisco switches. we have NTP setup running on a msfc of a 6500. switches are set to get time from 6500. the show clock command on the switches show the correct time. But when something is put in the log file of the switch,the time ...
hello guys, I would like to ask if it is normal that the SFP-10G-T-X module installed on a slot of the C9600 is seen as SFP-10GBase-SR.Is it possible that it is an update problem?Thanks for the answers.
Dear community memebers,I need to test a scenario containing cisco nexus 9300 switches on a virtual lab. I tried to configure vpc on my switches both in eve and gns3. But I have a problem. I configured my switches, and the vpc is formed fine and is u...
Hi team, Sorry to bother you, I need to migrate Avaya switches Base Software version = v5.3.2.017 to Catalyst 9200 switches Ios Xe 17.12.6. Does anyone have any methods or equivalent commands? Thanks for your help.Ciro Gustavo Mele.
Resolved! NTP Config on WS3750-X
Hello FreindsAre there any things missed in the NTP server Below config? VMs has issue associating with this NTP ServerBelow NTP Config==============WS3750-X#sh run | sec ntpntp source Vlan64ntp master 5ntp server 172.16.100.254WS3750-X# 1 of the VM ...
Hi Dearsmost switches donnot support RSPAN IF port trunk on and port 2 is access vlan 200 Copy traffic SPAN on VLAN 200 ???
