On 26 Aug 2021, at 09:03, Rob PE1CHL via 44Net
<44net(a)mailman.ampr.org> wrote:
On 8/26/21 9:42 AM, Chris Smith via 44Net wrote:
On 26 Aug
2021, at 08:35, Rob PE1CHL via 44Net <44net(a)mailman.ampr.org> wrote:
On 8/26/21 9:33 AM, Chris Smith via 44Net wrote:
Announcing a prefix yourself and joining the IPIP
mesh are mutually exclusive.
Can you explain?
I mean that members either
request a /24 (or larger) and announce it via BGP for their project, or they (typically)
request a smaller prefix and join the IPIP mesh / AMPRNet.
Chris
But you can have a /24 or larger subnet announced on BGP and have the same subnet on the
IPIP mesh as well.
In fact this improves connectivity for hosts within AMPRnet that are not routing towards
internet or do so with limitations (e.g. NAT).
This has been tried, but the routing setup gets very complicated and it is easy to get it
wrong, a way back Brian got me to put code in the portal that disallows this after a few
occasions when folk tried to do this and used their BGP announced 44 address as the IPIP
gateway IP - it broke things badly!
When the IPIP mesh has been replaced with the new
backbone, it would be the default situation to be on that backbone network and have that
announce your subnet on BGP, as I see it.
So it would still mean you can route from/towards internet via your BGP announcement, and
towards other AMPRnet users via the backbone.
Yes, I agree. With a better replacement for the IPIP mesh that the backbone/POP system
will bring, this will be possible and even preferred.
Chris
Rob
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