OpenNHRP

OpenNHRP implements NBMA Next Hop Resolution Protocol (as defined in RFC 2332). It makes it possible to create dynamic multipoint VPN Linux router using NHRP, GRE and IPsec. It aims to be Cisco DMVPN compatible. Download

NHRP server

NHRP is an ARP-like protocol that allows Next Hop Clients (NHCs ) to dynamically register with Next Hop Servers (NHSs). This allows the NHCs to join the NBMA network without configuration changes on the NHSs, especially in cases where the NHC has a dynamic physical IP address or is behind a Network Address Translation (NAT) … Continue reading →