Internet Enhanced Services
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VRRP support for IES IP interfaces
NOTE: VRRP for IPv4 is supported for IES IP interfaces in network mode only. VRRP for IPv6 is
not supported.
The Virtual Router Redundancy Protocol (VRRP) for IPv4 is defined in the IETF RFC 3768,
Virtual Router Redundancy Protocol. VRRP describes a method of implementing a redundant IP
interface shared between two or more routers on a common LAN segment, allowing a group of
routers to function as one virtual router. When this IP interface is specified as a default gateway on
hosts directly attached to this LAN, the routers sharing the IP interface prevent a single point of
failure by limiting access to this gateway address. For more information on use of VRRP, see the
“7210 SAS Router Configuration User Guide”.
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