Routing Policy

ROA validation is used for all ingoing and outgoing BGP announcements. Invalid announcements is rejected.
- Rules used are for IPv4 is bird_roa_dn42.conf and for IPv6 is bird6_roa_dn42.conf.
The below prefix filter rules from the dn42 website is used, too.
All route announcements with as-paths longer than 32 is rejected. (This is to prevents a mishap in the event of an unlikely routing loop in the network)

Prefix filters

General filter rules used in ASN 4242420144.

172.20.0.0/14{21,29}, # dn42
172.20.0.0/24{28,32}, # dn42 Anycast
172.21.0.0/24{28,32}, # dn42 Anycast
172.22.0.0/24{28,32}, # dn42 Anycast
172.23.0.0/24{28,32}, # dn42 Anycast
172.31.0.0/16+,       # ChaosVPN
10.100.0.0/14+,       # ChaosVPN
10.0.0.0/8{15,24}     # Freifunk.net
fd00::/8{44,64}       # ULA address space as per RFC 4193

ROA Generator

Find information at repository. And find the exported ROA files here.