HSRP gateway redundancy

Objectives

The simulator ticks each one as soon as the network meets it.

1. Configure HSRP group 1 with virtual IP 192.168.10.1 on R1 and R2.
2. Make R1 active: priority 110 and preempt (also enable preempt on R2).
3. Track R1 uplink G0/1 with a decrement of 20.
4. Ping PC2 from PC1 through the virtual gateway.
5. Shut down R1 uplink G0/1 (G0/1): R2 must take over and PC1 must still reach PC2.