Point 2 point IPs between ASes
Niels Bakker
niels=nanog at bakker.net
Tue Jun 27 20:34:30 UTC 2017
* KShah at primustel.ca (Krunal Shah) [Tue 27 Jun 2017, 22:28 CEST]:
>What subnet mask you are people using for point to point IPs between
>two ASes? Specially with IPv6, We have a transit provider who wants
>us to use /64 which does not make sense for this purpose. isn’t it
>recommended to use /127 as per RFC 6164 like /30 and /31 are common
>for IPv4.
Whatever you want.
>I was thinking, if someone is using RFC7404 for point to point IP
>between two ASes and establish BGP over link local addresses. This
>way you have your own IP space on your router and transit provider
>does not have to allocate IP space for point to point interface
>between two ASes. In traceroutes you would see only loopback IP
>address with GUA assigned from your allocated routable address
>space. Remotely DDoS to this link isn’t possible this way. Thoughts?
If you can protect the loopback IP from DDoS you can equally protect
linknet IPs.
-- Niels.
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