Network: June 2019 Archives

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6.44.3 1556023023
第一個欄位是版本, 第二個欄位應該是 build time (seconds since 1970-01-01 00:00:00 UTC)
目前 development 無資料 (404 Not Found)

因為 IPv6 沒有 NAT, 在 RouterBoard 設置 IPv6 基本防火牆條例是必要的, 否則外部可以使用 IPv6 直連內部的電腦
以下是 PPPoE 環境的 IPv6 基本條例

/ipv6 firewall filter
add action=accept chain=forward connection-state=established in-interface=pppoe-out1 # 容許已建立的連線
add action=accept chain=forward connection-state=related in-interface=pppoe-out1 # 容許關聯連線
add action=accept chain=forward in-interface=pppoe-out1 protocol=icmpv6 # 容許外面 ping 內部電腦
add action=accept chain=forward dst-port=22 in-interface=pppoe-out1 protocol=tcp # 容許外面連內部的 Port 22, 不需要可以移除
add action=accept chain=input in-interface=pppoe-out1 protocol=icmpv6 # 容許外面 ping RouterBoard 本身
add action=accept chain=input comment="DHCPv6 client" dst-port=546 protocol=udp # 容許 DHCPv6 client, 一定要加, 不然會拿不到 IP
add action=drop chain=forward in-interface=pppoe-out1 # DROP 其餘轉發封包
add action=drop chain=input in-interface=pppoe-out1 # DROP 其餘對 RouterBoard 本身的封包, 經由 pppoe-out1 進來
add action=drop chain=input in-interface=ether1 # DROP 其餘對 RouterBoard 本身的封包, 經由 ether1 進來
# 因為 pppoe-out1 是經由 ether1 撥的, 也加上去

這邊的 chain=forward 是指轉發封包, 經過 RouterBoard
chain=input 是指對 RouterBoard 本身
上面的範例 IPv6 外對內就只有 ping 及 Port 22 有通, 內對外不受限制

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This page is an archive of entries in the Network category from June 2019.

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