L3 redundancy.pdf - the Netgroup at Politecnico di Torino
L3 redundancy.pdf - the Netgroup at Politecnico di Torino
L3 redundancy.pdf - the Netgroup at Politecnico di Torino
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HSRP: working oper<strong>at</strong>ions (2)• The interface of <strong>the</strong> Active router has <strong>the</strong> followings assignedaddresses:• Primary IP address (inserted in <strong>the</strong> source IP header field)• Virtual IP address (used by hosts as default g<strong>at</strong>eway)• Physical MAC address assigned by <strong>the</strong> NIC manufacturer• Virtual MAC address alloc<strong>at</strong>ed to <strong>the</strong> HSRP Group• Well-known MAC address, derived by <strong>the</strong> HSRP group• The interfaces of <strong>the</strong> Standby and Listen routers have <strong>the</strong>followings assigned addresses:• Primary IP address (inserted in <strong>the</strong> source IP header field)• Physical MAC address assigned by <strong>the</strong> NIC manufacturer9