[e2e] Question on MTU
braden at ISI.EDU
Thu Apr 21 13:55:26 PDT 2005
*> But the advertised MSS in the TCP MSS option should not be adjusted to
*> reflect any options or intermediary headers, just the fixed IP and TCP
*> header sizes; 40 bytes for IPv4/TCP, and 60 bytes for IPv6/TCP. When
*> the sender generates the packet, he is responsible for reducing the TCP
*> data to allow room for any additional options or headers.
*> -David Borman
Please see Section 184.108.40.206 of RFC 1122 "Requirements for Internet
Hosts - Communication Layers" for the details.
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