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Netflow export to remote server on a different subnet

Hello All,

I´m wondering if anyone of you have configured Netflow export to a remote analyzer on a different subnet. Basically what I´m trying to do is export the statistics of one of my routers to the public IP of my local router and then NAT those statistics to my local Analyzer. I don´t know if NAT will do the job for me but looks like the server is not receving the statistics cache from the remote router

TOPOLOGY 

ROUTER1(Netflow export) ------------->ROUTER2------------->Analizer

Remote1:

ip flow-cache entries 52000

ip flow-cache timeout active 1

ip flow-export source Cable-Modem0/0/0

ip flow-export version 5

ip flow-export destination (remote router WAN IP) 9997

ip flow-top-talkers

top 50

sort-by bytes

cache-timeout 5000

WAN port

interface Cable-Modem0/0/0

description ***Primary link ISP1**

ip address dhcp

ip flow ingress

ip nat outside

ip inspect ATM out

ip virtual-reassembly

load-interval 30

no fair-queue

crypto map clientmap

!

Router2

interface FastEthernet0/0/0

ip address (WAN IP)

description OUTSIDE

ip dhcp client route track 456

ip address dhcp

ip nat outside

ip virtual-reassembly

load-interval 30

duplex auto

speed auto

end

ip nat inside source static tcp (Analizer IP) 9997 (WAN IP) 9997 extendable

ip flow-cache entries 52000

ip flow-cache timeout active 1

ip flow-export source FastEthernet0/1

ip flow-export version 5

ip flow-export destination (Analyzer IP) 9997

ip flow-top-talkers

top 50

sort-by bytes

cache-timeout 5000

Any good documents or configs related to this

Thank you

1 REPLY
Bronze

Netflow export to remote server on a different subnet

Hi,

I see that you have "ip nat inside source static tcp (Analizer IP) 9997 (WAN IP) 9997 extendable". But NetFlow packets are UDP. Can you try changing it to UDP? It should work provided the NATing occurs as expected.

Regards,

Don Thomas Jacob

www.netflowanalyzer.com

NOTE: Please rate posts and close questions if your query has been answered

Regards, Don Thomas Jacob http://www.solarwinds.com/netflow-traffic-analyzer.aspx Head Geek @ SolarWinds NOTE: Please rate and close questions if you found any of the answers helpful.
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