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Re: [v6ops] v6-only (with NAT64) as default network during a conference?

Ted Lemon <ted.lemon@nominum.com> Thu, 23 January 2014 01:29 UTC

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From: Ted Lemon <ted.lemon@nominum.com>
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Date: Wed, 22 Jan 2014 20:29:05 -0500
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To: Richard Hartmann <richih.mailinglist@gmail.com>
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Cc: IPv6 Operations <v6ops@ietf.org>
Subject: Re: [v6ops] v6-only (with NAT64) as default network during a conference?
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We've had a production quality NAT64 network at the past two IETFs, and it's worked wonderfully.   However, some things do break.   In particular, Skype doesn't work, and I've heard reports that some Cisco VPN implementation doesn't work.   I've found that OpenVPN does work, but needs to be configured differently because it can't automatically switch to IPv6 when IPv4 isn't available—it has to be configured to do one or the other.

If it were up to me, I'd make NAT64 the default and let people switch away if they can't make it work, because particularly at an open source conference I would expect this to generate a lot of frenetic bug fixing rather than a sad migration.   In theory free operating systems ought to do IPv6 better, but your milage may, unfortunately, vary.

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