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Netflow not working on cisco site-to-site vpn router

Hi Guys I have configured netflow on one of our branch office routers that connects by site-to-site vpn over the internet to our Cisco ASA 5500 back at our HQ, I am not seeing any netflow data coming...

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Re: Netflow not working on cisco site-to-site vpn router

You have to use a VPN technology that supports netflow on the router.  Virtual Tunnel Interfaces is the one we use on CISCO 2900/1900 running v15 whatever IOS.  We use routers at both ends, no ASA for...

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Re: Netflow not working on cisco site-to-site vpn router

I had the exact same issues.  It took a lot of searching, but I discovered that I needed the "output-features" and "export-protocol" commands in my flow exporter. "output-features" - requires 12.4(20)....

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Re: Netflow not working on cisco site-to-site vpn router

Well, it depends on how it is configured, which router, and what IOS version   Did you use the same template?

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Re: Netflow not working on cisco site-to-site vpn router

I seem to be getting flows after readding your template of commands so thank you once again, but the last router will let me enter all commands but " ip flow monitor MONITOR-1 input " on the external...

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Re: Netflow not working on cisco site-to-site vpn router

Is it working on the other interfaces, just not the external?  Or is it not working on any interface?

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Re: Netflow not working on cisco site-to-site vpn router

i can add the command to vlan 1 but not the external, however i cant see any flows on the server

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Re: Netflow not working on cisco site-to-site vpn router

See my original response:"output-features" - requires 12.4(20).  Is required to send Netflow packets over the VPN tunnel"export-protocol" - requires 12.4(22).  Specifies what version of Netflow...

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Re: Netflow not working on cisco site-to-site vpn router

ok i will arrange that thanks for your help

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Re: Netflow not working on cisco site-to-site vpn router

this is what works for me in global config do this and  be sure to change the port to the one you use, i use 9996 ip flow-cache timeout inactive 10ip flow-cache timeout active 1ip flow-export source...

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Re: Netflow not working on cisco site-to-site vpn router

Does this work over an IPSEC VPN?  I have attempted this setup (traditional Netflow), but was never able to get this to send flows over my VPN.

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Re: Netflow not working on cisco site-to-site vpn router

i suggest that you run wire shark on both ends of the VPN.then compare what is sent out vs what is received. you have have some traffic being blocked

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Re: Netflow not working on cisco site-to-site vpn router

So you are using a Site-to-Site IPSEC VPN with this config?

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Re: Netflow not working on cisco site-to-site vpn router

Well, it depends on how it is configured, which router, and what IOS version   Did you use the same template?

View Article

Re: Netflow not working on cisco site-to-site vpn router

I seem to be getting flows after readding your template of commands so thank you once again, but the last router will let me enter all commands but " ip flow monitor MONITOR-1 input " on the external...

View Article


Re: Netflow not working on cisco site-to-site vpn router

Is it working on the other interfaces, just not the external?  Or is it not working on any interface?

View Article

Re: Netflow not working on cisco site-to-site vpn router

i can add the command to vlan 1 but not the external, however i cant see any flows on the server

View Article


Re: Netflow not working on cisco site-to-site vpn router

See my original response:"output-features" - requires 12.4(20).  Is required to send Netflow packets over the VPN tunnel"export-protocol" - requires 12.4(22).  Specifies what version of Netflow...

View Article

Re: Netflow not working on cisco site-to-site vpn router

ok i will arrange that thanks for your help

View Article

Re: Netflow not working on cisco site-to-site vpn router

this is what works for me in global config do this and  be sure to change the port to the one you use, i use 9996 ip flow-cache timeout inactive 10ip flow-cache timeout active 1ip flow-export source...

View Article
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