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How many overheads for a IPSec packet compared to clear test one?

v.chow
Level 1
Level 1

How to calculate the IPSec overhead?

1 Reply 1

awaheed
Cisco Employee
Cisco Employee

Hi,

IPSec usually adds around 56 bytes if using in tunnel mode, If using with GRE then it can add around 80 bytes (total: 56+24 bytes), for further details check out the RFC 2406

Regards,

Aamir

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