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Re: Static interface routes for IP address on different subnet doesn't send an ARP who-has

On Fri, Aug 23, 2013 at 12:45:35AM -0700, John Nemeth wrote:
> On Aug 22,  8:22pm, John Hawkinson wrote:
> }
> } It's a pointless waste to blow a /30 on a point-to-point link
> } if you don't have to. Supporting this is smart.
>      Then use a /31.  See RFC 3021

ISPs don't want to use a /31 because it is also wasteful: to establish
point-to-point links between the gateway and N customers, you need 2N
addresses instead of N + 1 addresses.


David Young    Urbana, IL    (217) 721-9981

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