how to configure netflow for ipv4 and ipv6 at a same time on router

[amit babar]

how to configure netflow for ipv4 and ipv6 at a same time on router

[LJ Gabrillo]

Just remember that you cant have an IPv4 configured interface process netflow of IPv6 packets
and IPv6 configured interface process IPv4 packets for netflow data.
 

and additional question, why do you have that kind of setup?

[amit babar]

we have a 6504 with 12.2 ios version which is ipv6 capable and we have ipv4 as well as ipv6 segment outside.

so we have to mointor ipv4 and ipv6 traffic passing through 6504 interface

[LJ Gabrillo]

Im pretty sure 6504 is a switch
Anyway, with regards to that, if im correct there are additional configurations you need to do when enabling NetFlow on a L3 switch (MLS config to be exact)
 

#mls netflow 

#mls nde sender version 7

#mls aging long 64

#mls aging normal 32

#mls flow ip interface-full 

#mls nde interface

--after this, configure NetFlow as you would configure it on router
the above config is what I prefer, but if you want a document, here it is: http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/70974-netflow-catalyst6500.html

[amit babar]

thanks Isgabrillo

yes it is l3 switch with sup 720.can i know  what is the actual configuration to capture ipv4 and ipv6 taffic  for netflow

[LJ Gabrillo]

IPv6: CLICK!
IPv4: CLICK!

It's pretty much the same. The commands for IPv6 adds a "v6" after every IP, like "ip flow..." becomes "ipv6 flow.."