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Re: First line in /etc/hosts


> Also: As far as the kernel is concerned, any local IP is local to *all*
> interfaces, and it will happly reply to it (ARP and so on) if allowed to.
> The rp_filter will often avoid trouble here, BUT routers often have to
> disable rp_filter.  So add some rules to the firewall make sure nothing gets
> into unless it is a local packet.

So, by this implication, if I use arping and pretend to be
to another host, that host will try to ping the network if I ping 
on the target host?


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