10-29-2015 02:01 PM - edited 03-08-2019 02:29 AM
Hi,
I need to enable netflow on a 881 router running version 12.4. I can enable the ip flow-export commands to set the destination, source, version, etc. under global config but when I try to apply the settings to a specific interface I don't have any commands. I don't have any ip flow ... commands under any physical interface but I do on vlans.
Any ideas why I can't enable these on physical interfaces???
Thanks!
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10-29-2015 02:32 PM
Not used your router but I suspect you are trying to apply it to a L2 port and not a L3 one which is why you can apply it to your SVIs and you should be able to apply it your WAN interface as well.
I believe there is a version that can be applied to L2 ports but I have never used it although you could do a search on it with your IOS version.
I have no idea whether it is what you need or whether what you want.
But for the normal "ip flow .." commands as far as I know these need to applied to L3 ports.
Jon
10-29-2015 02:32 PM
Not used your router but I suspect you are trying to apply it to a L2 port and not a L3 one which is why you can apply it to your SVIs and you should be able to apply it your WAN interface as well.
I believe there is a version that can be applied to L2 ports but I have never used it although you could do a search on it with your IOS version.
I have no idea whether it is what you need or whether what you want.
But for the normal "ip flow .." commands as far as I know these need to applied to L3 ports.
Jon
10-30-2015 05:37 AM
Thanks Jon! These physical ports didn't have any IP address tied to them so I created a loopback and was able to put the ip route-cache flow on it and used it as the source.
Thanks again for the help!
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