OpenNHRP

OpenNHRP is an open source software that implements the NBMA Next Hop Resolution Protocol (as defined in RFC 2332).

OpenNHRP aims to be Cisco DMVPN compatible and enables users to build a dynamic multipoint VPN Linux router using NHRP, IPsec and GRE.

What is new in this release:

• This version fixes handling of multicast packets by not sending useless traffic indications about them.
• It also fixes recovery from DNS lookup failure of dynamic-map bindings.

What is new in version 0.14:

• The license has changed to MIT.
• This version adds minor bugfixes to handle network configuration errors properly (e.g., protocol address routing loops and very low holding times).

What is new in version 0.13.1:

• This version adds minor fixes for configurations with multiple mgre interfaces.

What is new in version 0.13:

• Minor feature improvements for multiple ISP setups with failover.
• Memory corruption and memory leaks that occur when acting as NHS (with heavy traffic) have been fixed.

What is new in version 0.12.3:

• Leaf (re)discovery immediately after reboot was fixed when stale IPsec SAs are still present and IPsec initial-contact notification is expected to flush them.

What is new in version 0.12.1:

• The GRE key is now exported to opennhrp-script (to allow dual-DMVPN setups).
• Minor bugs in config directives were fixed, along with building for certain configurations.

What is new in version 0.11.1:

• A Libev update, fixes for bugs related to local address monitoring, and minor documentation improvements.

What is new in version 0.11:

• introduce 'dynamic-map' directive to autodetect all next hop servers from a domain name with multiple A entries
• 'multicast' directive to better control softswitching of multicast packets
• use libev instead of the self written event handling code
• enable Forward NHS extension for Traffic Indications to drop the message after it has visited all NHS:es (otherwise it would loop between them until ttl expires)
• performance optimizations to packet capturing, multicast packet process switching, handling of registration requests and logging
• fix 64-bit compatibility issues
• some code documentation and clean ups

What is new in version 0.10.3:

• fix handling of c-ares timeouts
• fix cancellation of asynchronous operations in peer cache
• fix control socket default location (broke on makefile rewrite)
• code clean up (rename reference counting functions)