Priscilla Oppenheimer wrote:
> 
> > The router is testing for a duplicate IP address.  Hopes it
> > doesn't get a reply.
> 
> What it sends already is a reply, as the debug in the original message
> stated. Here's an example:

Oops, I didn't read the debug carefully enough.  Thanks for the correction!
> 
> >From my testing, the router doesn't do what you would expect it to do to
> determine if someone else is using its own address, i.e. broadcast an ARP
> Request with its own address in the Target Internet Address field.
> 
> It does, by the way, send itself an ARP reply, in addition to the broadcast
> ARP reply above.
> 
> Ethernet Header
>   Destination:          00:00:0C:05:3E:80
>   Source:               00:00:0C:05:3E:80
>   Protocol Type:        0x0806  IP ARP
> ARP - Address Resolution Protocol
>   Hardware:             1  Ethernet (10Mb)
>   Protocol:             0x0800  IP
>   Hardware Address Length:6
>   Protocol Address Length:4
>   Operation:            1  ARP Request
>   Sender Hardware Address:00:00:0C:05:3E:80
>   Sender Internet Address:10.10.0.1
>   Target Hardware Address:00:00:0C:05:3E:80
>   Target Internet Address:10.10.0.1

Wow, I have no idea why it would ever do that.
- Marty




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