3com 8807 Guia De Referência

System view

real-mac: Uses the real MAC address of the interface to match the virtual IP 
address of the virtual router in VRRP backup.

virtual-mac: Uses the virtual MAC address of the interface to match the virtual IP 
address of the virtual router in VRRP backup.

Use vrrp method command to set correspondence between the MAC address 
and the virtual IP address of the virtual router: matching the real MAC address or 
the virtual address with the virtual IP address.

Use the undo vrrp method command to reset the correspondence to the default 
value.

By default, the switch matches the virtual MAC address with the IP address of the 
virtual router.

Due to the chips installed, some switches support matching one IP address to 
multiple MAC addresses. Then you may configure correspondence between the 
virtual IP address of the virtual router and the real/virtual MAC address.

You should set correspondence between the IP address of the virtual router and 
the MAC address before configuring the virtual router. Otherwise, you cannot 
configure the correspondence.

If you set correspondence between the IP address of the virtual router and the real 
MAC address, then you can configure only one virtual router on VLAN interface.

# Set the real MAC address of the interface match the virtual IP address of the 
virtual router.

[SW8800] vrrp method real-mac 

System view

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Use vrrp ping-enable command to enable the function to ping the virtual IP 
address of the virtual router.