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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 25 Sep 2017
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      I finally found a reason to use IPv6 NAT/masquerading and this feels so wrong. Trying to route my home net into a walled garden /64 subnet.

      4 replies 3 retweets 7 likes
    2. クルって‏ @nakayoshikw_gyx 25 Sep 2017
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      Replying to @marcan42

      Some ISP provides subnet delegation of around /60 size via dhcpv6, and openwrt provides an automatic setup by default.

      1 reply 0 retweets 0 likes
    3. Hector Martin‏ @marcan42 25 Sep 2017
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      Replying to @nakayoshikw_gyx @Gyx__

      This isn't an ISP service, but a walled garden. DHCPv6 only hands out split DNS, no prefixes. My real ISP gives me a /56 of course.

      1 reply 0 retweets 0 likes
    4. Hector Martin‏ @marcan42 25 Sep 2017
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      Replying to @marcan42 @Gyx__

      What I'm trying to do is NAT my subnets (which are from my real /56) into the walled garden prefixes so they can access it and the Internet.

      2 replies 0 retweets 0 likes
    5. クルって‏ @nakayoshikw_gyx 25 Sep 2017
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      Replying to @marcan42

      In this case, I think avoiding NAT is still possible but might be harder to configure than the NAT approach.

      1 reply 0 retweets 0 likes
    6. クルって‏ @nakayoshikw_gyx 25 Sep 2017
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      Replying to @nakayoshikw_gyx @marcan42

      eg., allocate a /64 out of the /56 and then setup routing and dhcp/slaac accordingly, using some scripts to adapt to changes in dhcp leases

      1 reply 0 retweets 0 likes
    7. Hector Martin‏ @marcan42 25 Sep 2017
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      Replying to @nakayoshikw_gyx @Gyx__

      I still have the issue that I only get a /64 to participate in the walled garden. There's no way around doing address translation.

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 25 Sep 2017
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      Replying to @marcan42 @Gyx__

      Maybe using router advertisements for my main network and sub-/64 allocation via DHCPv6 for the walled garden, but that's even messier.

      1:42 AM - 25 Sep 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        1. Hector Martin‏ @marcan42 25 Sep 2017
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          Replying to @marcan42 @Gyx__

          I want my end hosts to not have to change. They get a simple single routable v6 address and can just transparently NAT to the walled garden.

          1 reply 0 retweets 0 likes
        2. クルって‏ @nakayoshikw_gyx 25 Sep 2017
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          Replying to @marcan42

          OK, I misunderstood at the first reading... So here NAT is used for home subnet to access the walled garden, not the other way around

          2 replies 0 retweets 0 likes
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