[j-nsp] /31 subnet mask

Richard A Steenbergen ras at e-gerbil.net
Sat Mar 22 16:44:03 EDT 2008


On Sat, Mar 22, 2008 at 02:49:12PM +0200, sunnyday wrote:
> hello can any one explain the use of a /31 subnet mask i know its for
> saving ip addresses etc etc but i need to know how it works,limitations 
> and how to implement it.

Be warned, some vendors still don't play nice with /31, and will do Very 
Bad Things (tm) the day you plug them into your nice /31 using Juniper 
network and start routing packets to them. The biggest "should know better 
but doesn't" offender is probably Foundry, though I'm sure there are 
others.

-- 
Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)


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