Cisco Community

Supplicant stopped responding to ISE

Anyone know how to fix error 'Supplicant stopped responding to ISE'? I try to increase 802.1x timer but not helping. When we use EAP-TTLS is mandatory that ISE certificate should be apply in the endpoint? Event5411 Supplicant stopped responding to ...

make a router invisible

For lack of better wording, how do I make a router invisible? I see the carriers do it all the time. When a tracert happens, I want no IP to show up but continue on so that it will eventually get to its destination.

Looking for a compatible hypervisor for Cisco UCS C220 M3

Hello Cisco Community, I’m setting up a home lab using a Cisco UCS C220 M3 server and would appreciate some guidance on finding a compatible hypervisor. I’ve tried installing VMware ESXi (7.x and 8.x) and Proxmox VE 9, but both failed due to hardware...

Unable to ssh the FTD device

Dear Team, I unable to ssh the FTD device. No External authentication is configured. Local authentication enable. When ssh the device user name & password asking. After giving proper credentials access denied. But on same credentials we able to login...

Firepower host protocols

Hi,When looking at a host profile discovered by the network discovery policy in FMC I see there is a "Servers" section with the list of protocols and ports listed according to the connection events registered for this host as a destination. Down bel...

ARP not resolved while roaming

We have Cisco 3500 WLC with 2800 APs (8.10.196.0). APs operate in Local mode, so, SSID traffic is central switched. We have a roaming problem. We used 802.1x-FT. With each roaming event, the client will do ARP to the gateway after it finishes. The pr...

Reimagining Network Troubleshooting

Effective Network troubleshooting is one of the top, if not the number one, priorities for almost every network operations team. Having the tools and the skills to identify faster the root cause and impact of network issues has a direct connection wi...

IKEv2 logs are not clear

Hi,I have a VPN setup between two cisco IOS routers running IKEv2It works fine with no issuesI see the logs below and Im not sure I understand what they are.I see IKEV@-5-SA_DOWN every time the IKEv2 SA lifetime is up and renews. I also changed the l...

ISR 4451 (Firmare upgrade)

So I tried to upgrade from isr4400-universalk9.17.12.04b.SPA.bin to isr4400-universalk9.17.12.05a.SPA.bin. After the upgrade it will not register with my SIP provider. I see this. Aug 11 02:08:22.843: %SIP-3-REG_INTERNAL: Registration failed. Tenant=...

(*) - local vPC is down, forwarding via vPC peer-link

Hello Local VPC status down what is the issue-----status - show vpcLegend: (*) - local vPC is down, forwarding via vPC peer-linkvPC domain id : 1Peer status : peer adjacency formed okvPC keep...

Shining a Light on Our Outstanding Spotlight Awardees - Summer 2025

These past few weeks have been bustling with activity and important updates, which led to a slight delay in announcing this quarter’s winners. Nevertheless, we are absolutely delighted to finally congratulate and celebrate our newest Spotlight Award...

Whether tacacs 2FA authentication is possible through ise.

When I do TACACS authentication through ISE, I would like to add external 2FA authentication. I think cisco DUO worksIs it possible with google OTP? And you don't need to install a separate application on your phoneCan we do 2FA?

C9300-48S with different power supplies

Hi, I have a question please regarding the C9300-48S as it comes by default with 715W power supply but when choosing a secondary power supply, one of the options is a power supply with 350W only, how to confirm if the 350W will be enough to handle al...

CISCO ESA

I Receive the Policy, Virus and Outbreak Quarantine space is 95% full alert how can I resolved

Modern Mullet Approach to Building Flexible Metro Network Design

In today’s service provider landscape, flexibility and innovation are key, especially within metro network environments. The concept of a Modern Mullet perfectly captures what modern infrastructure needs: business in the front, performance in the bac...

Community @ Cisco Live 2025 - Melbourne

Meet Mark Elsen – VIP and 2025 Hall of Fame Recipient

Celebrate our 25th Anniversary all year long!

Community Activity