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The Virtual Router Redundancy Protocol (VRRP) is a computer networking protocol that provides for automatic assignment of available Internet Protocol (IP) routers to participating hosts. This increases the availability and reliability of routing paths via automatic default gateway selections on an IP subnetwork .
VRRP Virtual Router Redundancy Protocol, Common Address Redundancy Protocol (not IANA assigned) RFC 5798: 0x71 113 PGM PGM Reliable Transport Protocol: RFC 3208: 0x72 114 Any 0-hop protocol 0x73 115 L2TP Layer Two Tunneling Protocol Version 3: RFC 3931: 0x74 116 DDX D-II Data Exchange (DDX) 0x75 117 IATP Interactive Agent Transfer Protocol ...
The virtual IP address allotted to the group of redundancy is indicated as the address of the default router on the computers behind this group of firewalls. If the main firewall breaks down or is disconnected from the network, the virtual IP address will be taken by one of the firewall slaves and the service availability will not be interrupted.
HSRP Hot Standby Router protocol; VRRP Virtual Router Redundancy Protocol; IP Internet Protocol; ICMP Internet Control Message Protocol; ARP Address Resolution Protocol; RIP Routing Information Protocol (v1 and v2) OSPF Open Shortest Path First (v1 and v2) IPSEC IPsec
In this implementation, each router within the network participates in the virtual routing environment in a peer-based fashion. While simple to deploy and appropriate for small to medium enterprises and shared data centers, VRF Lite does not scale to the size required by global enterprises or large carriers, as there is the need to implement ...
Virtual Router Redundancy Protocol (VRRP) No 224.0.0.19–21 IS-IS over IP No 224.0.0.22 Internet Group Management Protocol (IGMP) version 3 [22]: §4.2.14 No 224.0.0.102 Hot Standby Router Protocol version 2 (HSRPv2) / Gateway Load Balancing Protocol (GLBP) No 224.0.0.107 Precision Time Protocol (PTP) version 2 peer delay measurement messaging No
The protocol differs from many others in use as it combines Layer 2 and Layer 3 resilience – effectively doing the jobs of both Spanning tree protocol and the Virtual Router Redundancy Protocol at the same time. Whilst the restrictions on the physical topologies able to make use of VSRP mean that it is less flexible than STP and VRRP, it does ...
Vyatta is a software-based virtual router, virtual firewall and VPN product for Internet Protocol networks (IPv4 and IPv6). A free download of Vyatta has been available since March 2006. The system is a specialized Debian-based Linux distribution with networking applications such as Quagga, OpenVPN, and many others.