Route Server

UNY-IX operates so-called route server systems according to RFC7947 to facilitate the exchange of BGP announcements between peers at UNY-IX. Each peer needs only to set up a BGP connection to the route server in order to receive the BGP announcements of all other peers having a BGP connection with the route server.

UNY-IX operates two route servers at each of its Internet Exchanges that are redundant to each other. Route servers keep the number of necessary BGP sessions low for UNY-IX members because you need only one BGP session to each of the route servers to receive the prefixes of all other route server users.

You can use BGP communities to tell the UNY-IX route servers to whom to announce (or not announce) your prefixes.

Incoming you can use filter lists on your own routers to decide what to accept (or not accept) from the prefixes the route servers announce to you.

Route Server Guides for the exchanges

Besides the conventional route servers, UNY-IX also operates a so-called Blackholing route server. This Blackholing route server only distributes BGP announcements marked as Blackholes which are typically used to fight massive DDoS attacks. Please also see our Blackholing Guide to learn more about this topic.

BGP Session Parameters? This section provides a brief overview of the BGP session parameters to connect to the conventional and Blackholing route servers:

How and what the route servers filters

UNY-IX filters are updated every 1 hours. Don’t forget to register your IP prefixes in the IRR database well in advance (at least 24h before announcing the first time).

Bogon and Martian filtering

Please make sure not to announce routes that:

• are not > /24 (IPv4) and > /48 (IPv6) (RFC7454)
• are bogons/martians (private and reserved IP prefixes as defined by RFC 1918, RFC 2544, RFC 3927, RFC 5735, RFC 6598, and RFC 6890)
• UNY-IX is peering LAN (please also do not announce any of our peering LANs in the Internet!)
• contain bogon ASNs in the BGP AS path (private and reserved ASN numbers as defined by RFC 7607, RFC 6793, RFC 5398, RFC 6996, RFC 7300)
• are not < /8 (IPv4) and < /19 (IPv6) (RFC 7454)

UNY-IX will drop these kinds of routes.