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FS#2559 - Firewall rule Allow-ICMPv6-Input allows pinging LAN clients from the WAN #7377

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openwrt-bot opened this issue Oct 21, 2019 · 2 comments
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Isopod:

I'm a noob, but my understanding of the firewall rule Allow-ICMPv6-Input is that it should only allow ICMPv6 traffic to the router itself ("To any router IP on this device"), not to its clients. The latter is what Allow-ICMPv6-Forward is for ("To any host in any zone"). But when I enable only Allow-ICMPv6-Input, with Allow-ICMPv6-Forward disabled, I can still ping LAN clients from the outside. This seems wrong to me.

I used LuCI for configuration. The config is more or less stock as I did a factory reset earlier today. The version is OpenWrt 18.06.4.

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yousong:

Please share with us the content of /etc/config/firewall.

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Isopod:

Hi, sorry for taking so long, I was busy. I just tried this again, but now I can't reproduce it anymore.

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