![]() ![]() If the sequence number is greater than the highest sequence number in the window, the packet has its integrity checked.This duplicated packet is discarded and the drop is recorded in the replay counter. If the sequence number falls within the window but has been previously received, the packet is dropped.For example, a packet with Encapsulating Security Payload (ESP) sequence number 162. If the packet passes the integrity verification check, it is accepted and the router marks that this sequence number has been received. ![]()
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