Free tool · Switching
HSRP / VRRP Virtual MAC
Group or VRID to the well-known virtual MAC address.
First-hop redundancy groups use a well-known virtual MAC derived from the group or VRID: HSRPv1 0000.0C07.ACxx, HSRPv2 0000.0C9F.Fxxx, VRRP 0000.5E00.01xx. Hosts ARP the virtual IP and reach whichever router currently owns the group.
About this tool
Free HSRP, HSRPv2 and VRRP virtual MAC calculator. Enter a group number or VRID and get the well-known virtual MAC a first-hop redundancy group uses (0000.0C07.ACxx, 0000.0C9F.Fxxx or 0000.5E00.01xx), in Cisco dotted and colon formats. Everything runs entirely in your browser — nothing you type is sent to a server.
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