Cisco HSRP - Both routers active for one interface, others working fine : r/networking
Solved: Standby router is unknown | Packet Tracer - Cisco Community
You just finished configuring HSRP on R1 and R2. You issued the: "`show standby`", command on R1 and R2 to verify the configuration. To your utter surprise, both routers are active as
Troubleshoot HSRP Problems in Catalyst Switch Networks - Cisco