|
Hi All, I’m using Ntop 3.1 for NetFlow collector for my
internal router C2651XM ISP ----- Cable Modem ------- Switches ----------- Private
Internal Segment
(NAT)
|
|
| F0/0
C2651XM
|
| (NAT)
| F0/1
Public Internal Segment I’m configure the netflow at interface F0/0. So far, the ntop configuration run well. But there’s
some strange information from Summary à
ASN info. If I activate netflow export v5, I didn’t get
any ASN Info report, but if turn on netflow export v9, I get the ASN info from
the public internet. How come? I thought the AS number from the BGP at ISP
router not propagate/advertised to end user, but how come I get the information
in my ntop? Or there’s wrong netflow configuration in my
router? My router netflow configuration: interface FastEthernet0/0 ip address 10.1.1.240 255.255.255.0 ip nat outside ip route-cache flow duplex auto speed auto ! interface FastEthernet0/1 description to-Catalyst2950-12 ip address 10.10.10.1 255.255.255.0 ip nat inside ip route-cache flow no ip mroute-cache load-interval 30 speed 100 full-duplex ip flow-export source Loopback0 ip flow-export version 9 peer-as ip flow-export destination 10.10.10.110 2055 ip flow-export destination 10.10.10.203 2055 Can someone explaine to me? Regards, Aidil |
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