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BGP transit or Managed Internet Access?

9 April 20266 min read

Internet is internet, right? Not quite. There is a fundamental difference between Managed Internet Access (MIA) — internet as a ready-made service — and BGP/IP transit, where your network takes part in the internet itself. The right choice depends on what you need in terms of control, redundancy and room to grow.

Managed Internet Access: internet as a service

With MIA the provider delivers a working internet connection: the router is configured, the IP addresses come from the provider's space and the routing is the provider's problem. You plug in and it works.

That is exactly right for offices and environments without networking ambitions of their own: no management, no BGP knowledge needed, one bill. The flip side: the IP addresses are not yours (moving means renumbering), you are tied to one provider per connection, and you have no say over the routing.

BGP/IP transit: taking part in the internet yourself

With your own AS number and your own IP space you become a full participant in the internet. Over a BGP session with your transit provider you announce your own prefixes and receive the full table. That brings:

  • Your own address space — your IPs move with you, whichever provider you choose;
  • Multihoming — multiple providers or locations; if one drops out, BGP automatically routes around it;
  • Traffic engineering — with BGP communities and prepends you steer which traffic takes which path;
  • Independence — the relationship with your provider becomes replaceable instead of something that dictates your options.

The price of that: you need a router that can handle BGP, and someone who takes the management seriously — in house or through a partner.

Side by side

Managed Internet AccessBGP/IP transit
IP addressesthe provider'syours
Redundancyper connectionmultihoming, automatic failover
Routingthe provider decidesyou decide
Switching providerrenumberingprefixes move with you
Knowledge requirednoneBGP management (or a partner)
Suitsoffices, single siteshosting, ISPs, business-critical platforms

What should you choose?

Rule of thumb: if you do not need your own IP space and have no requirements around routing or failover, choose MIA and keep it simple. If you run services that others depend on — hosting, SaaS, critical infrastructure — or never want to renumber again, then your own AS with IP transit is worth the investment.

And there is a growth path: start with MIA, and switch once you are ready. As a RIPE member we handle the LIR side (AS sponsorship, resource applications) and provide transit on our own network, AS211588 — including configuration examples for your first session.

Frequently asked questions

Frequently asked questions

Can I grow from MIA to BGP transit?

Yes, that is a common path. You apply for your own AS number and IP space (or have it arranged through LIR services), set up a BGP session alongside your existing connection and migrate step by step. We regularly guide organisations through that move.

Isn't BGP far too complex for my organisation?

BGP itself is perfectly learnable, but it does require someone who takes the management seriously — or a partner who does. For an office without its own address space, MIA is usually the more sensible choice.

What happens to my IP addresses if I switch providers?

With MIA the addresses belong to the provider; when you switch you get new ones and have to renumber everything. With your own IP space over BGP you simply take your addresses with you — that is one of the biggest advantages.

Answer not found?

Ask an engineer directly — we usually respond within one business day.