Date: Fri, 2 Jun 2017 11:43:55 -0400 From: Jon Radel <jon@radel.com> To: byrnejb@harte-lyne.ca, freebsd-questions@harte-lyne.ca Subject: Re: IPv4 to IPv6 Message-ID: <691d853e-e2f7-b5f3-d281-73511845bd6a@radel.com> In-Reply-To: <74b7b58aa45cc01585338ef2270ccc57.squirrel@webmail.harte-lyne.ca> References: <74b7b58aa45cc01585338ef2270ccc57.squirrel@webmail.harte-lyne.ca>
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This is a cryptographically signed message in MIME format. --------------ms010006010309090507060101 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-US On 6/2/17 10:26, James B. Byrne via freebsd-questions wrote: > We are beginning the process of transitioning to IPv6. I have read a > great deal respecting the difficulty of moving from IPv4 to IPv6 and > maintaining general Internet connectivity. If any reading this have > gone through the process upon which we are embarking then I would be > grateful if you share your experience. Particularly any 'gotchas' that > cropped up. > > We will be using FreeBSD-11 as the platform for our Internet > connectivity. The main services we provide publicly are SMTP and DNS.=20 > We will maintain IPv4 addresses for these together with IPv6. > > Do you really plan to remove IPv4 from everything other than your SMTP and DNS servers? If so, how will your users [assuming you have such] reach resources on the IPv4 Internet? Or have I misunderstood? An orderly migration to being dual-stacked on everything would probably be a lot less painful than what I think you're planning. While there are possible mechanisms for an IPv6-only client to reach resources on the IPv4 Internet, I'm unclear on the benefits of bothering with such an architecture. --=20 --Jon Radel jon@radel.com --------------ms010006010309090507060101 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC Cq8wggSvMIIDl6ADAgECAhEA4CPLFRKDU4mtYW56VGdrITANBgkqhkiG9w0BAQsFADBvMQsw CQYDVQQGEwJTRTEUMBIGA1UEChMLQWRkVHJ1c3QgQUIxJjAkBgNVBAsTHUFkZFRydXN0IEV4 dGVybmFsIFRUUCBOZXR3b3JrMSIwIAYDVQQDExlBZGRUcnVzdCBFeHRlcm5hbCBDQSBSb290 MB4XDTE0MTIyMjAwMDAwMFoXDTIwMDUzMDEwNDgzOFowgZsxCzAJBgNVBAYTAkdCMRswGQYD VQQIExJHcmVhdGVyIE1hbmNoZXN0ZXIxEDAOBgNVBAcTB1NhbGZvcmQxGjAYBgNVBAoTEUNP TU9ETyBDQSBMaW1pdGVkMUEwPwYDVQQDEzhDT01PRE8gU0hBLTI1NiBDbGllbnQgQXV0aGVu 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