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Netflow V5 Sampling info not getting exported

Deepak Ladha
Level 1
Level 1

Hi,

I am using following Cisco router -

     Cisco CISCO3945-CHASSIS (revision 1.0) with C3900-SPE250/K9

     ROM: System Bootstrap, Version 15.1(1r)T4, RELEASE SOFTWARE (fc1)                  

I have configured netflow v5 sampling on this router using following commands -

    

yourname(config)#ip cef
yourname(config)#flow-sampler-map mysampler50
yourname(config-sampler)#mode random one-out-of 100
yourname(config-sampler)#interface GigabitEthernet 0/0
yourname(config-if)#no ip route-cache flow
yourname(config-if)#ip route-cache cef
yourname(config-if)#flow-sampler mysampler50
yourname(config-if)#exit
yourname(config)#ip flow-export version 5
yourname(config)#ip flow-export destination <ipaddress> 2222

yourname#show flow-sampler

Sampler : mysampler50, id : 1, packets matched : 156, mode : random sampling mode

  sampling interval is : 100

yourname#show ip flow interface

GigabitEthernet0/0

  ip flow egress

  flow-sampler mysampler50

Now, when i capture the packets using wireshark, packet header contains all the information except sampling mode and sample rate. It says,

     00.. .... .... .... = SamplingMode: No sampling mode configured (0)

     ..00 0000 0000 0000 = SampleRate: 0

Can you please let me know if i have missed out on some configuration due to which sampling mode/rate information is not getting exported in netflow v5 packet header.

Thank You.

Regards,

Deepak

1 Reply 1

tan2
Level 1
Level 1

Hi Bro,have you solved this problem now ?