lnpz1

According to https://github.com/miniupnp/miniupnp/issues/408#issuecomment-554783888, this is a client bug that IPv6 address is used in an IPv4 request. Best solution is fix the client, another option if you don't need UPnP...

New miniupnpd version has started to appear in OpenWrt repository, ideally `ipv6_disable=yes/no` [option](https://framagit.org/miniupnp/miniupnp/-/blob/master/miniupnpd/miniupnpd.conf#L62) needs to be parsed in https://github.com/openwrt/packages/blob/master/net/miniupnpd/files/miniupnpd.init to avoid the need to use `upnpd.config.config_file` with a custom `miniupnpd.conf`

Many clients don't comply with IGDv2. Try the following assuming you only need IGDv1 ``` uci set upnpd.config.igdv1=1 uci set upnpd.config.ipv6_disable=1 ``` or change `/var/etc/miniupnpd.conf` directly to include 2 lines...

> miniupnpd 2.1.20191006 heads/v19.07.3-f3f38f40da May 16 2020 That's the old version, it doesn't support `ipv6_disable` . You need `2.1.20200510` to use `ipv6_disable`, (`2.1.20200510-3` or later to use `ipv6_disable` with `uci`)