The VRRP communication process can be illustrated by the figure above.
In the figure, both routing devices R1 and R2 are connected to the
local area network 192.168.12.0/24 through the SVI port Vlan 1. VRRP is
set on the Vlan 1 interface of routing devices R1 and R2, and all hosts in
the local area network are using the virtual routing device IP address of
the VRRP group as the default gateway.
For hosts within the local area network, they can only sense the virtual
routing devices of the VRRP group, while the main routing devices of the
VRRP group that actually undertake routing forwarding functions are
transparent to them.
For example, if host PC 1 in the local area network wants to
communicate with host PC 2 in other networks, PC 1 will use virtual
routing devices as the default gateway to send network packets to PC 2,
the main routing device in the VRRP group will forward the packet to PC
2 after receiving the packet.
During this communication process, PC 1 can only sense the virtual
routing device and does not know whether the main routing device