SixXS::Sunset 2017-06-06

Tunnel ip /64
[de] Shadow Hawkins on Sunday, 14 June 2015 08:55:45
Hi, just a dump question for my hungry Knowledge.... Why Do You use /64 subnets for the endpoint instead of /127 ptp? Thx, Tom
Tunnel ip /64
[ch] Jeroen Massar SixXS Staff on Monday, 15 June 2015 01:26:47
just a dump question for my hungry Knowledge....
Do you mean a dumb question?
Why Do You use /64 subnets for the endpoint instead of /127 ptp?
Because an interface is a /64. And with one single /48 per PoP we have 32k /64s for the tunnels and 32k subnets to route over them. Why would one bother with /127s? See also RFC3627.

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