What impact does netflow have on router's performance?
Does turning on netflow have a big impact on the router cpu?
AS number data
Hey Guys, I'm playing with the new beta version to get AS number reports. I'm using a cisco 7200 router, and I have enabled ip route-cache flow on my interface. And in my router I have set: ip flow-export version 5 peer-as ip flow-export destination 10.0.0.2 9996 Basically what i want to see is traffic IN and OUT for every peering I have on my router. With these settings my inbound traffic seems to be accurate, but my outbound traffic is like 2 bits/sec, which is impossible at all. It seems like
Netflow integration with cacti
Hi Is there any known issues with integrating Netflow with an existing Cacti monitoring tools on the same live network. How can i configure Netflow to monitor and report bandwidth usage on multiple links of different cisco devices on a single graph.
FTP data trouble!
Why traffic on 20 tcp looks as TCP_App?
New Router interfaces discovered daily
I have one Cisco 3745 router on which NFA keeps discovering "new" interfaces. Every day it adds another 20 or 30 interfaces to the Managed Interfaces. I can delete or unmanage the interfaces but they will either re-appear or more will appear the next day. This router has 16 T1 interfaces, but I am only monitoring the Multilink PPP virtual interfaces. Any idea when this issue might be resolved?
Adding user
Im evaluating this software and find it very impressive. I have a problem. When I add in a new user it says "users added sucessfully". When I click on the user management tab it doesnt show up any user that I created. Please help
Licensing- Is it additive
I'm looking to buy a pair of 100 interface licenses. They are additive to one server for a total of 200, right?
Why did I only get top 10 result?
I'm testing Netflow analyzer 4.0.1 bulid 4011, I found out that I can only have maximum top 15 on every report, how can increase this to top 100 or even 150? I can find anywhere to change it. Thanks
ip route-cache flow ..... why
hello i was looking at trying your software for our 6500 switches, but want to know why you have to enable ip route-cache flow. According th Cisco, NDE is avilable for ip route-cache CEF 'Catalyst 6000 family switches provide Layer 3 switching with Cisco Express Forwarding for Policy Feature Card 2 (CEF for PFC2) or with Multilayer Switching (MLS). You can use NDE to monitor all Layer 3-switched traffic through the Multilayer Switch Feature Card (MSFC). NDE complements the embedded Remote Monitoring
NetFlow Analyzer 4.0.2 (build 4020) Beta available
We are glad to announce the availability of NetFlow Analyzer 4.0.2 (build 4020) Beta. Please send us your contact details, along with the current version that you are running, to support@netflowanalyzer.com in case you would like to test drive the same. Users running earlier versions of NetFlow Analyzer can migrate to 4020 Beta. Thanks The NetFlow Analyzer team NetFlow Analyzer 4.0.2 (Build 4020) includes the following: Major Features Support for NetFlow version 7 Reporting based on AS information
Not getting all displays
We are currently testing Network Analyzer with a Cisco Catalyst 4500 Series switch. I have netflow going and Network Analyzer is receiving packets. I cannot see any information on any of the tabs except for the Conversation tab. There is no information on the Traffic tab for example, but on the Conversation tab I am seeing all the information. Any ideas on this one? Please see attachments of screen shots. Thanks in advance.
6509 problems
Hi Apologies if this is a repost but I�ve been unable to find anything which can help. I have a number of 6509's which i would like to monitor with netflow. I've configured one as a test (6509, sup720, ios ver: 12.2(17d)SXB5). I am receiving the flows after making the following configuration: ip flow-export version 5 ip flow-export destination X.X.X.X 9996 int vlan 1 ip flow ingress ip route-cache flow int vlan 2 ip flow ingress ip route-cache flow etc.... As i said i'm receiving the flows ok although
Non V5 packets from device
To: Team Support Hi, I'm using NetFlow 4.0.1 bulid 4011. It's a great software, indeed. I have some trouble here. Maybe you can help me to solve them. 1. I have a message " Receiving non V5 packets from the following devices: IP addr" I have check my router's configuration, and it's OK. I only use ip flow-export version 5. 2. On the same device, I have add "ip route-cache flow" on every interface, but the NetFlow didn't display all the device. Please help me. Thank you very much. Regards, Stevanus
Source, Destination and Conversation tabs not working?
Hello, we just started evaluating your product for major cable operator but one problems occurred right on the begining of testing - clicking on tabs "Source" or "Destination" or "Conversation" does nothing, browser just sit and wait for data. Traffic and Application tabs are OK, only "Unknown protocols" (and icon next to TCP App) also displays nothing. We do have a lot of traffic and netflow data but we hoped your product is up to this. regards, miodrag
Feature Request - Telnet from Dashboard
I would like to be able to click on the 'RouterIP' on the Dashboard and open a separate telnet session to that router. It would allow better management if you are overseeing quite a few devices (which we are). Since NFA pulls the IP from the router anyway I would hope that it wouldn't require major changes to make the IP clickable for Telnet (or possibly Web access if options were in setup. Thanks. Brian SecureNetworks Inc.
How are averages calculated? These don't look right....
Hi, How are average volumes and speeds calculated? Take a look at the image below - I can't understand why the averages are so low looking at the data in the table. The same thing applies on the "Speed" tab, too. many thanks, alec
Can application mapping include server IP address?
We are actively evaluating this product and are very impressed. We havent yet looked at the newer builds which include IP Grouping. I'll explain the business problem, then if someone could kindly advise if this is possible and how - a] We have client site X b] We want to be able to report on router interface bandwidth utilisation by application/service for site X c] Site X access ten different web based business applications, therefore all traffic is WWW/port 80, but to ten different servers/ip addresses
Enabling netflow in Cisco Catalyst switches
Hi, Can you please profide me with the guide lines for enabling netflow specialy for Cisco switches (Catalyst 3550). We have enable few switches to export netflow pacets to our netflowanalyzer app bout the result is not what we have expected. the following is the command that we use to enable netflow: ip flow-export version 5 ip flow-export destination 10.0.0.2 9996 ip flow-export source loopback 0 ip flow-cache timeoute active 5 ip flow-cache timeoute inactive 15 int vlan 111 ip route-cache flow
Toubles Netflow
I enabled netflow on the router, but The server is not receiving any netflow packets, do I need to do something else on the server
Kerberos Authentication possible?
Hello, Is it possible to perform Kerberos Authentication with Bandwidth Analyzer? The idea is to authenticate users with an Active Directory system. Active Directory supports user groups and it would be great if we could assign users to a particular group and give access to devices depending on people being part of this group or not. If it is not currently possible, it would be great if you could add it to your roadmap... Regards,
Incorrect traffic reported
I am testing out the software and pulling data from our GSR. It's showing grossly inaccurate traffic numbers. I have one client that is on a 100 Mb/s Fast Ethernet port and it shows a spike up to 150 Mb/s.. Why is this? I just started using it and the numbers don't seem anywhere near consistent with my RTG graphs.. Also, since I'm asking questions, how can I see the current usage, not the average but the last reported usage?
My sql port not free
Server is starting. This may take a minute ... This evaluation copy is valid for 29 days Unable to start MySQL server on port 13310. Please free the port. Press any key to continue . . .
Feature Request
I've setup NFA to show the top 100 hosts for increased accuracy. However when I select "resolve DNS" it can take several minutes for DNS lookups to timeout for un-resolvable Internet IP's (up to a minute). In these instances I select Top 10 & it displays the page much faster. However, when I select another page, it defaults back to Top 100 again. I'd like to see the "display top n" as a sticky function. Keep the "top N" setting for all pages & reports unless I change it manually. Sometimes you don't
Feature Request
Will future releases have the ability to send snmp traps based on interface utilization by application port?
Cannot create IP Groups and summarize?
Hi all, I have recently downloaded the eval version of netflow and I cannot create IP groups?!? The item is not under Admin operations?!? Furthermore - Is is possible to summarize all interfaces to view application traffic? regards, Philip
Netflow and compression
Hi All, i've enabled netflow on routers and using netflow analyzer. But the problem is i get input and output details using netfloe annalyzer if compression is not enabled on serial link. If compression is enabled the netflow didnt work. any workaround/suggestion. thx in advance. Checkpoint_savvy
Making changes
I'm new to the forum and before we buy this product we have a few concerns. I'm curious about a couple of things: 1. it has configuration options for SNMP: how does it use them? If it wants to query the routers, and if we choose to let it, we need to change the SNMP community string from public to lr0nly (lrOnly is our network). 2. can we change the port speed? 1000000 bps is not correct. 3. how did it learn about the two interfaces on each router? Did you tell it, or did it get that out of the data?
some thing like netflow ???
hello every one, i m looking for a freeware software like netflow to work with cisco 2600 routers kindly mail me at a_khanowner@gawab.com regards, ghias_
Exlude IP address
Hello. I'm evaluating NetFlow Analyzer 4. How I can exclude IP addresses from statistics? Thanks.
100 percent Utilization
Hello, I am receiving > 100 percent utilization in a traffic report and wanted to seek an explanation/resolution. I am currently using version 4011 and have attached screen prints to support this claim. Thanks
Eval expiry
When the NFA 30 day Eval runs out, is the data collected still accessible from the web browser?
automatic report generation
Hi, Is it possible for Netflow Analyzer to generate the reports automatically? Fro example, generate the daily report @ midnight? Thanks. Po-i
TCP_Apps missing port list for IP Groups
Hello, I recently created an IP group for a specific host address. I noticed that under "Top Applications IN/OUT Report", TCP_Apps does not contain a feature to allow you to determine the specific TCP ports that were used in this category. Was the ommission of this feature intentional? Thanks
netflow v9
Do you have plans on supporting v9 packets and do you have plans on doing some graphing and stats on BGP AS Path?
Running NetFlow Analyzer as a service
Guys I'm sure I've seen detail on here before on how to run NA as a service on a Windoes 2003 server - but cannot seem to find that information anymore. If it is indeed possible, could someone please post instructions or a link to instructions. Many thanks Stuart
Traffic between groups
Hi, In your reports one can see the traffic in/out for the resp. groups. Is it possible to see the traffic between 2 groups in 1 report ? Then you can establish traffic patterns and do baselining... Regards, Johan
Application --> Last Month --> Others
Hi, I've tried to work with the live Demo and when i click on Sales Depart, Application, Last month report, the grpah shows only "Others" (see screenshot attached) Could you tell me why ? regards
Change Mysql Database Path
Hi, How do i change the Netflow analyzer 4.0's MYsql path, disk space is full and i want to move it to different drive, where i have plenty of space. regards Kulwinder
Netflow analyzer
i was analyzing net flow analyzing for internet usage by different Ip's without configuring any router information etc into it, but it is not working. Can anybody tell me whether i can monitior the traffic by just providing the IP address in the Netflow analyzer running at my proxy server for internet. regards punit
blocking ports
Is there away to block ports in netflow.....example please are streaming web content and using a certain port number (which I can't remember)...is it possible to disable that port so no one is able to use it thanks
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