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Re: CIDR FAQ
David, > But isn't it possible to have a router convert from an IPv6 address > with provider bits to an IPv4 address by simply stripping all but the > lowest 32 bits from the IPv6 address? > > The hosts on the LAN remain entirely IPv4, but the addresses that > leave the router have the provider bits added by the router. You can't strip a non-zero part of IPv6 address, as this would cause transport layer pseudo-header checksum to fail. Yakov.