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Cisco Community is an active and collaborative place to learn more about our products and ask questions of peers and Cisco experts! Check out some of the most popular conversations happening right now!

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DMZ switches best practice

Hi,I have one switch in each DMZ zone. Each DMZ VLAN has the default gateway on the firewall.I am wondering what is considered the best practice:Connecting DMZ switches directly to the firewallOrConnecting DMZ switches via the core switch (L2 only) t...

iores by • Level 1
  • 217 Views
  • 12 replies
  • 0 Helpful votes

Resolved! Download Cisco iOS cat3k_caa-universalk9.16.09.06.SPA.bin

Hi all, I facing issue with a customer that want to upgrade iOS for Catalyst 3850-48T-L Switch.Current version: 03.06.06Eupgrade version: 16.09.06.SPA.bin. Actually I'm curious about downloading iOS without getting service contract.So is it safe to d...

Can switch pass traffic between devices that don't have MAC addresses

I have customer that has a special system where the end devices don't have MAC addresses nor IP addresses. The system was previously connected via direct cables (fiber and ethernet). The customer has now requested to connect these devices to Cisco L2...

Ab26 by • Level 1
  • 136 Views
  • 7 replies
  • 0 Helpful votes

VLAN Configuration

Dear All,i have a question about VLANs configuration.currently i have 4 vlan created for IP TV, IP Phone, IP Camera and Wireless Wifi. now i want to configure more VLAN for Wifi Network only because the Wifi is getting slow sometime so if i seperate ...

Sardar1 by • Level 1
  • 239 Views
  • 15 replies
  • 0 Helpful votes

Resolved! CUCM Upgrade from 10.5 to 14

My client wants to upgrade their CUCM 10.5 to version 14 or even 15. However they have a UCS M3 and M4 server existing, which are both end-of-life. Problem is the M3 server cannot or may not support VMware ESXi 7.0 which is the minimum ESXi version f...

Screenshot 2024-11-11 092025.png
momosebi by • Level 1
  • 193 Views
  • 9 replies
  • 0 Helpful votes

DNAC CatC & RADIUS|AAA

i've met one Subject (no SDA/no ISE integration/few RADIUS|TACACS servers defined only in the System/Settings/External AAA servers). But i noticed that in the Assurance DNAC recognize actual ISE PSNs configured across the NADs of this large distribut...

boot Fail

Hi there : i have a Cisco catalyst 2960-x sires 24 ports switch .. this is a brand new item purchased the last week from local vendor .  whenever i try to Putty this error message is shown as attached in the picture :  would you please tell me what t...

boot-fail.PNG

troubleshooting menu 9200l not shown

hi, i use a cisco Sw 9200l 24p-4g. I can't use the troubleshooting menu because the sub menus not shown.the picture attached. please help me. IOS XE 17.13.1 and IOS XE 17.15.1 tested. 

error.jpg

LG aircon refusing to connect to WiFi

Hi All,Need some expertise with LG aircon. It suddenly disconnected from my wireless network, and refuses to reconnect (no changes were made). Occasionally it would reconnect and immediately drop off. I tested on a standard home router wireless with ...

Adam_S by • Level 1
  • 141 Views
  • 4 replies
  • 0 Helpful votes

Server Connection Issue

Need assistance with getting my pcs and severs to connect in packet tracer. The subnet masks are all matching.Devices and servers can only ping themselves.

asolbri2 by • Community Member
  • 86 Views
  • 1 replies
  • 0 Helpful votes
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