user-space replacement to VRRP -- automatic IP fail-over
DescriptionUCARP allows a pair of hosts to share common virtual IP addresses in order to provide automatic fail-over. It is a portable user-land implementation of the secure and patent-free Common Address Redundancy Protocol (CARP, OpenBSD's alternative to the VRRP). Strong points of the CARP protocol are: very low overhead, cryptographically signed messages, interoperability between different operating systems and no need for any dedicated extra network link between redundant hosts.
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Install this software package
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