2024年2月21日時点、UnifiOS 3.2.12でDS-Liteのトンネルがうまく疎通しなかったり、固定IPが使えない問題に対処したもの
WebGUIではDHCP-PD prefix /56, DS-Liteの設定を仕込んだ状態で試したもの
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November 20, 2025 03:43
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UDM Pro で固定IPv4を使いたい場合やDS-Liteが挙動おかしいときに作ったスクリプト
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| # DS-Lite修正 | |
| # 参考 | |
| # https://techlog.iij.ad.jp/contents/dslite-raspi | |
| REMOTE='' | |
| # SLAAC シングルの人は多分これでいける | |
| # LOCAL=`ip addr show br0 | grep 'mngtmpaddr' | awk '{print $2}' | awk -F/ '{print $1}'` | |
| # DHCP-PDv6の人はこっち | |
| LOCAL=`ip addr show br0 | grep 'inet6' | grep 'dynamic' | awk '{print $2}' | awk -F/ '{print $1}'` | |
| # IPIP6 tunnel linkup | |
| ip -6 tunnel delete ip6tnl1 | |
| ip -6 tunnel add ip6tnl1 mode ip4ip6 remote ${REMOTE} local ${LOCAL} dev br0 | |
| ip link set dev ip6tnl1 up |
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| ## IPIP設定 (DHCP-PD方式) | |
| # https://www.rtpro.yamaha.co.jp/RT/docs/v6connect/index.html | |
| # https://xmms.jp/blog/index.php?entry=entry200812-194208 | |
| # ASAHINETの固定IPの詳細ページからとれる情報 | |
| AFTR='' | |
| INTERFACE_ID='' # 下64bitでOK | |
| UPDATE_UID='' | |
| UPDATE_PASSWORD='' | |
| FIXED_IPV4='' | |
| INTERNET_ETH='eth8' | |
| LOCAL_PREFIX=`ip addr show br0 | grep 'inet6' | grep 'dynamic' | awk '{print $2}' | awk -F/ '{print $1}' | sed 's/::1//'` | |
| LOCAL_INET6="${LOCAL_PREFIX}:${INTERFACE_ID}" | |
| # 新しいv6アドレスを用意 | |
| ip -6 add add ${LOCAL_INET6}/64 dev br0 | |
| # IPv4アドレスをセット | |
| `ip a add dev ${INTERNET_ETH} ${FIXED_IPV4}` | |
| # accept_raを2にしないとtokenセットできないらしい | |
| # https://ral-arturo.org/2021/04/01/ip-token.html | |
| sysctl -w net.ipv6.conf.br0.accept_ra=2 | |
| ip token set ::${INTERFACE_ID} dev br0 | |
| ip route add default dev ip6tnl1 | |
| # アップデートサーバーに通知 | |
| curl "https://v6update.asahi-net.or.jp/prefix?key=${UPDATE_UID}&pass=${UPDATE_PASSWORD}" | |
| # IPIP6 tunnel 再構築 | |
| ip -6 tunnel delete ip6tnl1 | |
| ip -6 tunnel add ip6tnl1 mode ip4ip6 remote ${AFTR} local ${LOCAL_INET6} dev br0 | |
| ip link set dev ip6tnl1 up |
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