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5.6 Trailer Format

In order to deal with large size, MAC described in the section 5 is appended to the end of the TCP segment as a trailer. If the TCP option sends MAC, the maximum size of MAC is limited to 38 octets. In the current implementation, the length of MAC is 16 octets.

Toshiyuki Tutumi
Sat Apr 29 04:12:04 GMT+0900 1995