Tuesday, January 29, 2019

IP/ASN Portability?

We own a /21 and a /22 subnet issued by RIPE, we also have a public ASN that we use in the UK.

The company is looking to join up its UK and USA networks at some point this year The question is can we announce a subset of our assigned range from a USA DC using the same ASN we use in the UK?

Technically speaking I can't see it being an issue. We would peer with a tier 1 in USA with our public ASN and advertise a /24, and amend our advertisements in the UK to no longer advertise the /24 which is now in USA (wouldn't want to announce all from both locations as it could end up transiting our cross-atlantic connections).

Are there any restrictions or regulations against doing this?



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