BIRD 2.0.9 (2022-02-09)

Changes

• BGP: Flowspec validation procedure
• Babel: MAC authentication support
• Routing table configuration blocks
• Optional prefix trie in routing table for faster LPM/interval queries
• CLI: New show route in <prefix> command
• Filter: Faster (16-way) prefix sets
• Filter: MPLS label route attribute
• Filter: Operators to pick community components
• Filter: Operators to find minimum and maximum element of lists
• BGP: New free bind option
• BGP: Log route updates that were changed to withdraws
• BGP: Improved invalid next hop error reporting
• OSPF: Allow ifaces with host address as unnumbered PtP or PtMP ifaces
• OSPF: All packets on PtP networks should be sent to AllSPFRouters address
• Scripts for apkg-powered upstream packaging for deb and rpm
• Support for Blake2s and Blake2b hash functions
• Security keys / passwords can be entered in hexadecimal digits
• Memory statistics split into Effective and Overhead
• Linux: New option netlink rx buffer to specify netlink socket buffer size
• BSD: Assume onlink flag on ifaces with only host addresses
• Many bugfixes

Notes

• For OSPF on PtP network, BIRD now sends all packets to multicast AllSPFRouters address (as required in RFC 2328 8.1). This likely breaks setups with multiple neighbors on a network configured as PtP, which worked in previous versions. Such links should be configured as PtMP.
• Since Linux 5.3, netlink socket can be flooded by route cache entries during route table scan. This version mitigates that issue by using strict netlink filtering.