Geoffrey Merck F4FXL

## mtu_overhead.md

      
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                F4FXL
                / mtu_overhead.md
            
            
              Created
              December 16, 2021 19:15
                — forked from dwallraff/mtu_overhead.md
            
              
                Encapsulation MTU overhead
              
          
    MTU Encapsulation overhead


TCP header adds 20 bytes
IPv4 header adds 20 bytes
IPv6 header adds 40 bytes


GRE (IP Protocol 47) (RFC 2784) adds 24 bytes (20 byte IPv4 header, 4 byte GRE header)