Somebody in my company fills the whole channel. We have DHCP server so IP address can change. My boss wants to know who is it, so I need to collect statistics for out channel for one month. In statistics must be source mac and destination IPs. Could anyone advice any product (Cisco or non-Cisco) which could be able to collect statistics with mac included?
I kind of think that you are using a cisco router as a dhcp server, you can use show dhcp binding to check who is using what and with software like cactools you can automate the login and the command and get an email with the result.
On a switch that passes traffic to the router create a monitor port. Capture packets using wireshark or something. Configur wireshark to create multiple files with Max size or every hour. Let wireshark show "top talkers".
One month is a long time to store captured data. You may configure Some Trigger so capture only occurs at a certain bandwith use.
Example: Configuring Flexible NetFlow for Monitoring MAC and VLAN Statistics
The following example shows how to configure Flexible NetFlow for monitoring MAC and VLAN statistics.
This sample starts in global configuration mode:
flow record LAYER-2-FIELDS-1
match ipv4 source address
match ipv4 destination address
match datalink dot1q vlan output
match datalink mac source address input
match datalink mac source address output
match datalink mac destination address input
match flow direction
flow monitor FLOW-MONITOR-4
ip address 172.16.6.2 255.255.255.0
ip flow monitor FLOW-MONITOR-1 input
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...