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Re: Manual SA SPI range
On Mon, 15 Jan 2001, Brian Swander wrote:
> Does anyone know if there is a hard specification in any of the RFCs
> that nails down ranges for manual SA SPIs?
There isn't. SPIs below 256 are reserved for special purposes (only one
of them is currently assigned: 0 is reserved for system internal use and
may never appear in a packet), but there is no explicit assignment for
manual keying.
The Linux FreeS/WAN project has decided to reserve all three-digit hex
numbers, i.e. 0x100 through 0xfff, for manual keying (one-digit and
two-digit hex numbers being the special-purposes area), and its automatic
keying will never generate those. At the moment, I don't know of anybody
else who has copied this.
Henry Spencer
henry@spsystems.net
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