What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general. You are invited to get involved by asking and answering questions!

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags


View all Tags

Netflow Cisco EIGRP Tunnel

Votes:

0

Your Vote:

Up

Down

Hi

We configure our main router to send netflow with the following commands: ip flow-export version 9 ip flow-export source GigabitEthernet0/0 ip flow-export destination 10.X.X.X 2055

and on the interface: interface gi 0/0 ip flow ingress ip flow egress

So now we see all incoming and outgoing traffic within PRTG and everything works fine.

The problem is know this is our main router which hosts about 30 EIGRP Tunnels. At the moment we see traffic from all tunnels at the same time. So we're not able to have a look at a specific tunnel. I tried to find a configuration, so that i can make different configs for different tunnels on 1 Router. It's more kind of a Cisco Router question then PRTG but I hope someone had already the same problem.

Best regards Thomas

cisco-router eigrp-tunnel ip-flow-export

Created on Jul 6, 2015 2:18:17 PM by  thomasr (0) 1



1 Reply

Votes:

0

Your Vote:

Up

Down

Are the VPN tunnels on the Cisco router DMVPN?

If you are using DMVPN with multi-point GRE at the central site, then you cannot monitor each remote site individually, since you have only one tunnel interface with IP address at the central site.

It would be better to setup Netflow version 9 with Flexible Netflow at each remote site tunnel interface. Also note that you MUST include the "output-features" command option under the flow exporter configuration. This allows flow records to be sent through the VPN tunnel back to the central site.

Created on Apr 28, 2017 5:43:25 PM by  jbeckner (0) 1



Please log in or register to enter your reply.


Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.