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Subject: Re: Hi. /31 on ethernet links
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> > We have asked Cisco repeatedly, through official channels, whether
> > they *support* /31 on Ethernet links. The answer is always that it
> > *may* work, use at your own peril.
> 
> i have managed O(10^3) ciscos in isp backbone(s).  /31s predominate for
> ether links in that space.  though i suspect there is more multipoint in
> the enterprise space.
> 
> we need to be able to use /31s and /127s on freebsd if it is to be used
> in the routing space.

I agree about that.

However, I was simply reacting to the claim that it was *supported* by
Cisco. We have asked both Cisco and Juniper, and neither company is
willing to state that it is *supported*. Our Ethernet core links are
/30 for IPv4 and /124 for IPv6.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no