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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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Multicast - DR / forwarder election

Hi, I'm trying to prefer R2 route for the multicast traffic (without using static mroute)  from R1 (receiver) to R4 (source):Receiver (R1): 10.10.10.10Source~(R4): 10.0.45.5I'm completely new to multicast and still trying to understand how it works b...

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D@1984 by • Level 1
  • 1 Views
  • 0 replies
  • 0 Helpful votes

DHCP Server issues DOT1X

HelloAfter I have setted every policy on the switch and everything is working fine through an ISE authentification via dot1x, now server cannot reach its gateway in order to give IP DHCP addresses to the hosts on VLANs!Can anyone help me please

Jason2005 by • Level 1
  • 136 Views
  • 2 replies
  • 0 Helpful votes

vManage unable to talk to devices after poweron

I'm running vManage 20.9.4.1 in EVE-NG, and every time I power-on my virtual topology, the vManage doesn't work after it boots.DTLS tunnels do form from vManage to the vSmart/vBond and Edge Routers, but vManage can't actually send any commands to the...

vmanage.device.data.error.png
bmcgahan by • Level 1
  • 111 Views
  • 2 replies
  • 0 Helpful votes

Remote location core switch

We have several remote locations with their own L3 switch that we use for routing. Some have direct fiber to our central core others uplink via another router and use VPN to tunnel back to our central office firewall.Edge switches at these locations ...

PCE between IGP domains failing

I can't seem to get an SR policy working between IGP domains using a PCE controller to guide the traffic. My topology is as follows (full configs attached): R1, R2 and PCE are in one ISIS domain. ISIS level-2 point-to-point is running and exchanging...

stevencrutchley_0-1715520661017.png

packet loss seen from L3 switch but not from widows machine

Sometimes I see packet loss when pinging from a cisco switch but not from a windows machine connected to the same segment (right behind that L3 switch) pinging the same destination. Any reasons why this could happen? Frin Windows     

hmc2500_0-1715534725222.png hmc2500_1-1715534965191.png
hmc2500 by • Level 1
  • 64 Views
  • 2 replies
  • 0 Helpful votes

http web error - top.mainFrame is undefined

Hello, I've upgraded my Catalyst to the latest firmware avaliable. But after that the webpage stopped working and I see this Javascript error when trying to see "Port Status" or other pages. Do I need to configure something for this to work?   Switch...

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cisco macsec between my head office and branch offices

cisco 9500 layer 3 switch in the head office and C3560CX switches in 5 branch offices. ISP gives an interface to the head office, both data vlan and internet vlan. I want to establish macsec between the branches.can anyone support me in macsec setup?

Seyidoff by • Level 1
  • 38 Views
  • 0 replies
  • 0 Helpful votes

Help with Getting Started PT - 1.1.2 Video

Good afternoon!I'm just starting with the Networking Essentials Course and my instructor told us to download Packer Tracer and go through the three courses to learn how to work with it. I'm in the 'Getting Started Course', at the 1.1.2 Video, trying ...

Practice.PNG
VictoriaQ by • Level 1
  • 43 Views
  • 0 replies
  • 0 Helpful votes

Config GNS3 VM inside a Win10 Virtual machine

Hi,I need to create a GNS3 lab for internet access via the router inside a Win10 VM. For that, I used a NAT cloud, and that was okay. However, with NAT, I could not access the router's IP from the hosted laptop. Therefore, I tried to use the cloud. H...

Resolved! FTD Routing question

Hi to all,i am facing the following problem, please refer also to the png attached (i also have some information on the png attached).An IPsec VPN 2811 router tries to establish an IPSec vpn with an FTD. I have setup this config on the lab and i noti...

Ditter by • Level 3
  • 236 Views
  • 12 replies
  • 0 Helpful votes

Mobility traffic ports

[Edited on March 16th to add details]HelloI was a bit confused about the traffic ports used by mobility on WLC AireOS or IOS-XE.Trying a quick review of traffic ports used by mobility :AireOS IRCM other than 8.5 IRCM or 8.8.111 and latersince this do...

ASA <-> Fortigate IPSec VTI Issue

Hello, I am currently testing the IPSec Ikev2 VTI Based (routed-based) interworking of FPR2110 and 3rd party equipment (Fortigate) running ASA OS 9.18(3)56 as shown in the picture above.I understand that in the process of creating a Tunnel interface...

ggnogame1_2-1715528208026.png ggnogame1_3-1715528224910.png ggnogame1_5-1715528491536.png
ggnogame1 by • Level 1
  • 73 Views
  • 3 replies
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