我想让R1始终为HSRP组的活动路由器,哪一组命令可以保证我的需求?
A. R1(config-if)# ip address 192.168.1.100 255.255.255.0R1(config-if)# standby 1 ip 192.168.1.1R1(config-if)# standby 1 priority 1R1(config-if)# no shutdown
B. R1(config-if)# ip address 192.168.1.250 255.255.255.0R1(config-if)# standby 1 ip 192.168.1.1R1(config-if)# no shutdown
C. R1(config-if)# ip address 192.168.1.100 255.255.255.0R1(config-if)# standby 1 ip 192.168.1.1R1(config-if)# standby 1 priority 255R1(config-if)# standby 1 preemptR1(config-if)# no shutdown
D. R1(config-if)# ip address 192.168.1.100 255.255.255.0R1(config-if)# standby 1 ip 192.168.1.1R1(config-if)# standby 1 priority 150R1(config-if)# no shutdown