[nsp] show ip cache flow -- Same SrcIf and DstIf?

Stephen J. Wilcox steve at telecomplete.co.uk
Thu Oct 9 12:42:36 EDT 2003


Is it possible that the packets came in on the Serial with possibly spoofed src 
address (assuming the serial is a leaf/stub node) .. this would produce this 
output..

Steve

On Thu, 9 Oct 2003, Devon True wrote:

> All:
> 
> Has anyone seen "show ip cache flow" output that shows the same
> interface for both SrcIf and DstIf? The SrcIP is an Internet host and
> the DstIP is a host across a serial interface. Example:
> 
> SrcIf         SrcIPaddress DstIf         DstIPaddress  Pr SrcP DstP Pkts
> 
> Se1/1/0/9:0   209.x.x.131  Se1/1/0/9:0   69.x.x.126    11 98F2 0035 22
> Se1/1/0/9:0   213.x.x.130  Se1/1/0/9:0   69.x.x.126    11 0400 0035 568
> Se1/1/0/9:0   24.x.x.250   Se1/1/0/9:0   69.x.x.2      11 0035 0035 2596
> Se1/1/0/9:0   24.x.x.250   Se1/1/0/9:0   69.x.x.3      11 0035 0035 480
> Se1/1/0/9:0   66.x.x.143   Se1/1/0/9:0   69.x.x.2      11 8003 0035 25
> Se1/1/0/9:0   66.x.x.145   Se1/1/0/9:0   69.x.x.2      11 8004 0035 25
> 
> Octets changed to protect the innocent. :)
> 
> Devon
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