Hi,
I have a Cisco 3825 with 2 interfaces, one connected to the Internet and the other to my LAN. I see very low traffic on my Internet bound interface in my NetFlow tool. On checking the NetFlow cache, I found that the under destination interfaces, only the LAN interface is displayed and the rest are all NULL. There are no flows shown with the Internet interface under destination and I guess because of this OUT traffic of the Internet interface is not accounted for and so I see a low traffic. Is there any possible reason on why the 'dst if' shows as NULL instead of the interface name ?
Configuration on the interfaces are as below:
interface GigabitEthernet0/0
description To Internet
ip address ERASED IP
ip access-group 102 in
no ip redirects
ip flow ingress
ip flow egress
ip nat outside
ip inspect SDM_LOW out
ip virtual-reassembly
ip route-cache flow
duplex auto
speed auto
media-type sfp
negotiation auto
interface GigabitEthernet0/1
description to LAN
ip address ERASED
ip flow ingress
ip flow egress
ip nat inside
ip virtual-reassembly
ip route-cache flow
duplex auto
speed auto
media-type rj45
standby 20 ip ERASED IP
standby 20 priority 102
standby 20 preempt
standby 20 track GigabitEthernet0/0
any possible issues or bugs?
