I try to work the netfow on my router 881 with ios 15.0.1 but when t put rhis command
BOA_SDSL#sh ip flow top-talkers % Cache is empty
Here the output of command
BOA_SDSL#sh ip flow interface FastEthernet4 ip route-cache flow ip flow ingress Vlan1 ip route-cache flow ip flow ingress
interface FastEthernet4 ip address xxxxxxxxxxxxxxxxxxxxxxxxxx ip flow ingress ip nat outside ip virtual-reassembly no ip route-cache cef duplex auto speed auto no cdp enable crypto map clientmap hold-queue 100 out
interface Vlan1 description $ETH-SW-LAUNCH$$INTF-INFO-HWIC 4ESW$ ip address 192.168.1.252 255.255.255.0 ip flow ingress ip nat inside ip virtual-reassembly no ip route-cache cef ip tcp adjust-mss 1452 standby use-bia standby 1 ip 192.168.1.254 standby 1 priority 105 standby 1 preempt delay minimum 60 standby 1 track 1 decrement 10 hold-queue 32 in hold-queue 100 out
ip flow-top-talkers top 10 sort-by bytes
With this confguration the netfow works fine ion a 871 router
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