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Lloyd Wood wrote: ... > Do the internals of TCP change when it's running over IPv4 vs IPv6? > Does the interface to upper layers change? Actually, yes - the pseudoheader over which the checksum is computed channges. So too does ICMP signalling, setting of the DF bit for fragmentation discovery (clearing it doesn't have the same effect in v6 as in v4), etc. ;-) Joe -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkopMZYACgkQE5f5cImnZrtouwCeIs3GLB5vlJA9rIlJeG24ylq4 EAQAn3N3ZPP4W3sVK5PzwvQBbpGU2mjL =VIvA -----END PGP SIGNATURE-----
